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can carry. This weight is called Vehicle Capacity Weight and includes the weight of all occupants, cargo, and all nonfactory-installed options.


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MFD BY GENERAL MOTORS CORP DATE GVWR GAWR FRT GAWR RR


THIS VEHICLE CONFORMS TO ALL APPLI- CABLE U.S. FEDERAL MOTOR VEHICLE SAFETY, BUMPER, AND THEFT PREVENTION STANDARDS IN EFFECT ON THE DATE OF MANUFACTURE SHOWN ABOVE.


The other label is the Certification label, found on the rear edge of the driver’s door. It tells you the gross weight capacity of your vehicle, called the GVWR (Gross Vehicle Weight Rating). The GVWR includes the weight of the vehicle, all occupants, fuel and cargo. Never exceed the GVWR for your vehicle, or the Gross Axle Weight Rating (GAWR) for either the front or rear axle. And, if you do have a heavy load, you should spread it out. Don’t carry more than 100 pounds (45 kg) in your rear area.


NOTICE: Your warranty does not cover parts or components that fail because of overloading.


If you put things inside your vehicle -- like suitcases, tools, packages, or anything else -- they will go as fast as the vehicle goes. If you have to stop or turn quickly, or if there is a crash, they’ll keep going.


Towing A Trailer Your Corvette is neither designed nor intended to tow a trailer.


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NOTES


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n e


Section 5 Problems on the Road


Here you’ll find what to do about some problems that can occur on the road. Hazard Warning Flashers


Your hazard warning flashers let you warn others. They also let police know you have a problem. Your front and rear turn signal lamps will fla.sh on and off.


Press the button to make your front and rear turn signal lamps flash on and off.


Your hazard warning flashers work no matter what position your key is in, and even if the key isn’t in. To turn off the flashers, pull out on the collar. When the hazard warning flashers are on, your turn signals won’t work. Other Warning Devices If you carry reflective triangles, you can set one up at the sid’e of the road about 300 feet (100 m) behind your vehicle. Jump Starting If your battery has run down, you may want to use another vehicle and some jumper cables to start your Corvette. But please follow the steps below to do it safely.


5-2


NOTICE: Ignoring these steps could result in costly damage to your vehicle that wouldn’t be covered by your warranty. Trying to start your Corvette by pushing or pulling it could damage your vehicle, even if you have a manual transmission. And if you have an automatic transmission, it won’t start that way.


To Jump Start Your Corvette: 1. Check the other vehicle. It must have a 12-volt


battery with a negative ground system.


3. Turn off the ignition on both vehicles. Turn off all


lights that aren’t needed, and radios. This will avoid sparks and help save both batteries. And it could save your radio!


NOTICE: If the other system isn’t a 12-volt system with a negative ground, both vehicles can be damaged.


2. Get the vehicles close enough so the jumper cables can reach, but be sure the vehicles aren’t touching each other. If they are, it could cause a ground connection you don’t want. You wouldn’t be able to start your Corvette, and the bad grounding could damage the electrical systems.


NOTICE: If you leave your radio on, it could be badly damaged. The repairs wouldn’t be covered by your warranty.


4. Open the hoods and locate the batteries. Find the


positive (+) and negative (-) terminals on each.


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5. Check that the jumper cables don't have loose or


missing insulation. If they do, you could get a shock. The vehicles could be damaged, too.


6. Positive (+) goes to positive (+) and negative (-)


goes to negative (-) or a metal engine part. Connect the red positive (+) cable to the positive (+) terminal of the vehicle with the dead battery. Use a remote positive (+) terminal if the vehicle has one.


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7. Don’t let the other end touch metal. Connect it to the


positive (+) terminal of the good battery. Use a remote positive (+) terminal if the vehicle has one.


8. Now connect the black negative (-) cable to the good


battery’s negative (-) terminal. Don’t let the other end touch anything until the next step.


9. The other end of the negative cable doesn’t go to the dead battery. it goes to a heavy, unpainted metal part on the engine of the vehicle with the dead battery. Attach the cable at least 1.8 inches (45 cm) away from the dead battery, but not near engine parts that move. The electrical connection is just as good there, but the chance of sparks getting back to the battery is much less. Now start the vehicle with the good battery and run the engine for a while. Try to start the vehicle with the dead battery. If it won’t start after a few tries, it probably needs service.


10.


11.


rowing Your Vehicle


I B '


12. Remove the cables in reverse order to prevent


electrical shorting. Take care that they don't touch each other or any other metal. A. Heavy Metal Engine Part B . Good Battery C . Dead Battery


Try to have a GM dealer or a professional towing service tow your Corvette. The usual towing equipment is a sling-type (A) or a wheel-lift (B) or car carrier (C) tow truck.


If your vehicle has been changed or modified since it was factory-new by adding aftermarket items like fog lamps, aero skirting, or special tires and wheels, these instructions and illustrations may not be correct. Before you do anything, turn on the hazard warning flashers. When you call, tell the towing service:


That your vehicle cannot be towed from the rear with sling-type equipment.


0 That your vehicle has rear-wheel drive.


The make, model, and year of your vehicle. Whether you can still move the shift lever. If there was an accident, what was damaged.


When the towing service arrives, let the tow operator know that this manual contains detailed towing instructions and illustrations. The operator may want to see them.


5-7


-


icle's


.ition key


When your vehicle is being towed, have the ign off. The steering wheel should be clamped in a straight-ahead position, with a clamping device designed for towing service. Do not use the veh steering column lock for this. The transmission should be in NEUTRAL (N) and the parking brake released. Don't have your vehicle towed on the rear wheels unless you must. If the vehicle must be towed on the rear wheels, don't go more than 35 mph (55 km/h) or farther than 50 miles (80 km) or your transmission will be damaged. Go slow over rough ground, and position one wheel at a time (angled 45 ") if you have to go over curbs and rises. Wheels at the lifted end should be at least 4 inches (100 mm) above the ground. If these limits must be exceeded, then the rear wheels have to be supported on a dolly.


Front Towing Hook-Ups


Position 4 x4 wood beam across sling chains contacting under fascia just ahead of the curb protect brackets (A).


Attach T-hook chains on both sides into slotted holes behind and inboard of front wheels. Use these slots for sling equipment and car carrier securing.


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I


Position sling crossbar against front of 4 X 4 beam.


Attach a separate safety chain around outboard end of each lower control arm.


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Rear Towing Hook-Ups


Attach T-hook chains in slots forward and just inboard of rear wheels on both sides.


NOTICE: Do not tow with sling-type equipment or rear bumper valance will be damaged.


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NOTICE: Use wheel-lift or car carrier equipment. Additional ramping may be required for car carrier equipment.


NOTICE: Use safety chains and wheel straps.


NOTICE: Towing a vehicle over rough surfaces could damage a vehicle. Damage can occur from vehicle-to-ground or vehicle-to-wheel-lift-equipment. To help avoid damage, install a towing dolly and raise vehicle until adequate clearance is obtained between the ground and/or wheel-lift equipment.


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If Steam Is Coming From Your Engine


Attach a separate safety chain around the outboard end of each lower control arm. I NOTICE: Do not allow chains to contact spring, as damage to spring could result. Engine Overheating You will find an engine coolant temperature gauge on the instrument cluster and a low coolant light on the Driver Information Center.


'I


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I


Stop after high speed driving. 0 Idle for long periods in traffic. If you get the overheat warning with no sign of steam, try this for a minute or so: 1. Turn off your air conditioner. 2. Turn on your heater to full hot at the highest fan


speed and open the window as necessary.


3. If you’re in a traffic jam, shift to NEUTRAL (N);


otherwise, shift to the highest gear while driving -- AUTOMATIC OVERDRIVE (a) or DRIVE (D) for automatic transmissions.


If you no longer have the overheat warning, you can drive. Just to be safe, drive slower for about ten minutes. If the warning doesn’t come back on, you can drive normally. If the warning continues, pull over, stop, and park your vehicle right away. If there’s still no sign of steam, you can idle the engine for two or three minutes while you’re parked, to see if the warning stops. But then, if you still have the warning, turn off the engine and get everyone out of the vehicle until it cools down. You may decide not to lift the hood but to get service help right away.


1 NOTICE:


If’ your engine catches fire because you keep driving with no coolant, your vehicle can be badly damaged. The costly repairs would not be covered by your warranty.


If No Steam Is Coming From Your Engine If you get the overheat warning but see or hear no steam, the problem may not be too serious. Sometimes the engine can get a little too hot when you: 0 Climb a long hill on a hot day. 5-14


Cooling System


When you decide it’s safe to lift the hood, here’s what you’ll see on the LT1 engine: 1. Coolant recovery tank 2. Coolant high fill reservoir with pressure cap 3. Electric engine fans


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If the coolant inside the coolant recovery tank is boiling, don’t do anything else until it cools down.


When you decide it’s safe to lift the hood, here’s what you’ll see on the LT5 engine: 1. Coolant recovery tank 2. Coolant high fill reservoir with pressure cap 3. Electric engine fans


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When it is cool, remove the coolant recovery tank cap and look at the dipstick.


The coolant level should be at or above COLD. If it isn’t, you may have a leak in the radiator hoses, heater hoses, radiator, water pump or somewhere else in the cooling system.


How to Add Coolant to the Coolant Recovery Tank If you haven’t found a problem yet, but the ,coo,lant level isn’t at or above the COLD mark, add a 50MI mixture of clean water (preferably distilled) and a proper antifreeze at the coolant recovery tank. (%e “Engine Coolant” in the Index for more information about the proper coolant mix.)


NOTICE: Engine damage from running your engine without coolant isn’t covered by your warranty.


If there seems to be no leak, with the engine on check to see if the electric engine fan(s) are running. If the engine is overheating, both fan(s) should be running. If they aren’t, your vehicle needs service.


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In cold weather, water can freeze and crack the engine, radiator, heater core and other parts. Use the recommended coolant.


When the coolant in the coolant recovery tank is at or above the COLD mark, start your vehicle. If the overheat warning continues, there's one more thing you can try. You can add the proper coolant mix directly to the coolant high fill reservoir, but be sure the cooling system is cool before you do it.


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How to Add Coolant to the Coolant High Fill Reservoir (5.7L LT5 (Code J) Engine)


1. You can remove the coolant high fill reservoir


pressure cap when the cooling system, including the coolant high fill reservoir pressure cap and upper radiator hose, is no longer hot. Turn the pressure cap slowly to the left until it first stops. (Don’t press down while turning the pressure cap.) If you hear a hiss, wait for that to stop. A hiss means there is still some pressure left.


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2. Then keep turning the pressure cap, but now push


down as you turn it. Remove the pressure cap.


3. Fill the coolant high fill reservoir with the proper


mix, up to the base of the filler neck.


4. Then fill the coolant recovery tank to the HOT mark


on the dipstick.


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5. Put the cap back on the coolant recovery tank, but


leave the coolant high fill reservoir pressure cap off.


6.


7.


Start the engine and let it run until you can feel the upper radiator hose getting hot. Watch out for the engine fans. By this time the coolant level inside the coolant high fill reservoir filler neck may be lower. If the level is lower, add more of the proper mix through the filler neck until the level reaches the base of the filler neck.


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8. Shut the engine off and replace the pressure cap. At any time during this procedure if coolant begins to flow out of the filler neck, reinstall the pressure cap. Be sure the arrows on the pressure cap line up like this.


How to Add Coolant to the Coolant High Fill Reservoir -- LTl Only


NOTICE: The LT1 Engine (Code P) has a specific coolant high fill reservoir fill procedure. Failure this procedure could cause your engine to overheat and be severely damaged.


t,o follow


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1. You can remove the coolant high fill reservoir


pressure cap when the cooling system, including the coolant high fill reservoir pressure cap and upper radiator hose, is no longer hot. Turn the pressure cap slowly to the left until it first stops. (Don’t press down while turning the pressure cap.) If you hear a hiss, wait for that to stop. A hiss means there is still some pressure left.


2.. Then keep turning the pressure cap, but now push


down as you turn it. Remove the pressure cap.


3. After the engine cools, open the air bleed valve on


the water pump inlet.


5-24


8. Start the engine and allow it to run in idle for approximately four minutes. By this time, the coolant level inside the coolant high fill reservoir will be lower. Add more of the proper mix through the filler neck until the level reaches the base of the filler neck.


4. Fill with the proper mix. Add coolant until you see a


steady stream of coolant coming from the bleed valve.


5. Close the bleed valve. 6. Continue to fill the coolant high fill reservoir up to


the base of the filler neck.


7. Rinse or wipe the spilled coolant from the engine


and compartment.


9. Shut the engine off and replace the pressure cap. Be


sure the arrows on the cap line up like this.


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If a Tire Goes Flat It’s unusual for a tire to “blow out” while you’re driving, especially if you maintain your tires properly. If air goes out of a tire, it’s much more likely to leak out slowly. But if you should ever have a “blowout,” here are a few tips about what to expect and what to do: If a front tire fails, the flat tire will create a drag that pulls the vehicle toward that side. Take your foot off the accelerator pedal and grip the steering wheel firmly. Steer to maintain lane position, then gently brake to a stop well out of the traffic lane. A rear blowout, particularly on a curve, acts much like a skid and may require the same correction you’d use in a skid. In any rear blowout, remove your foot from the accelerator pedal. Get the vehicle under control by steering the way you want the vehicle to go. It may be very bumpy and noisy, but you can still steer. Gently brake to a stop, well off the road if possible. If a tire goes flat, the next part shows how to use your jacking equipment to change a flat tire safely. If your vehicle has Extended Mobility Tires (tires with “EMT” molded on the sidewalls), see “Extended Mobility Tires” in the Index.


10. Then fill the coolant recovery tank


to the proper


level.


For a complete drain, flush and refill, see your Chevrolet dealer or a Chevrolet Corvette Service Manual. To purchase a service manual, see “Service Publications” in the Index.


5-26


Changing a Flat Tire If a tire goes flat, avoid further tire and wheel damage by driving slowly to a level place. Turn on your hazard warning flashers.


The following steps will tell you how to use the jack and change a tire. Your Corvette wheel lock key has a unique registration number. The registration number is printed on a card included in your locknut package. Also on this card is lost key replacement information. This number is NOT recorded by GM or your dealer, so be sure not to lose this card. You will need the information if you ever lose your wheel lock key.


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If you have someone else remove your wheels, make sure you give them the special wheel nut socket and wheel lock key. They are under the jack in the rear storage compartment behind the passenger’s seat. The socket can be used with an air or torque wrench.


NOTICE: Your wheels could be damaged if the wheel nut socket is not used to remove your Corvette’s wheels.


Always use the wheel nut socket when you use the wheel wrench provided with your Corvette. The equipment you’ll need is behind the driver’s seat and in the rear storage compartment behind the passenger’s seat. Move the driver’s seat all the way forward and fold the seatback forward. The wheel wrench is on the floor behind the seat. Loosen the wingnuts and slide the wheel wrench out of the clamps.


The jack, wheel nut socket and wheel lock key are in the rear storage compartment behind the passenger’s seat (unless you chose the spare tire delete option). Open the compartment door and remove the plastic tray. Lift the jack, wheel nut socket and wheel lock key out of the foam container. You should have a jack, wheel wrench, socket and a wheel lock key.


The spare tire is on a tire carrier tray under the rear end of your vehicle. To lower the tray position yourself behind the vehicle facing the front and use the socket end of the wheel wrench to turn the latch bolt clockwise. Lower the tray about an inch. Don’t loosen the latch bolt too much, or the tray could fall.


Put the hooked end of the wheel wrench into the slot in the tray. Insert the wheel wrench a little from the side so it isn’t over the latch bolt. Pull up on the wheel wrench to lift the tray.


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While holding the tray up with the wheel wrench, pull the latch bolt rearward to release it from the tray. If it won’t come free, loosen it a little more. Carefully lower the tray using the wheel wrench and remove the spare tire.


Remove the plastic wheel nut caps using the socket end of the wheel wrench by turning the wrench in the direction shown. Store the caps somewhere until you have the flat tire repaired or replaced.


5-30


P


Each wheel will have one locknut. A special wheel lock key (removal tool) and instructions are provided. Attach the wheel lock key to the wheel wrench. Remove the locking wheel nut by turning counterclockwise.


Attach the wheel nut socket to the wheel wrench and loosen all the wheel nuts by turning the wrench in the direction shown. Don’t remove them yet.


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Attach the wheel wrench to the jack. Hold the wheel wrench handle so it forms a right angle with the jack, then turn it clockwise.


When you’ve turned the wrench almost as far as it will go, swing it around to the other side. Keep turning to raise the jack lift head a few inches.


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A


Position the jack under the vehicle. There are two locator triangles (A) on the panels (B) near each wheel. Raise the lift head (C) until it fits firmly under the steel rocker flange (D) between the triangles nearest the flat tire. If you have a ZR- 1, the triangles are on the underside of the molding. The flange is inboard of the triangles.


Stay away from the moldings or fender flanges to avoid damaging them.


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NOTICE: Raising your vehicle with the jack improperly positioned will damage the vehicle or may allow the vehicle to fall off the jack. Be sure to fit the jack lift head into the proper location before raising your vehicle.


Raise the vehicle by turning the wheel wrench clockwise. Raise the vehicle far enough off the ground so there is enough room for the spare tire to fit. Remove all the wheel nuts and take off the flat tire.


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Replace the wheel nuts with the rounded end of the nuts toward the wheel. Tighten each nut by hand until the wheel is held against the hub.


Lower the vehicle by turning the wheel wrench counterclockwise. Lower the jack completely.


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Tighten the wheel nuts firmly in a criss-cross sequence as shown.


The LOWELAT TIRE or SERVICE LTPWS light will stay on as long as you are using the compact spare tire. It should go out when the original tire is replaced. After you have the flat tire repaired or replaced, install the plastic nut caps and tighten them to 22 pound-inches (2.5 Nem). Put the jack, wheel nut socket and wheel lock key in the rear storage compartment behind the passenger’s seat. Make sure the parts are stored properly in the foam container. Position the jack in the container so that you can read the yellow CAUTION label from the driver’s seat. Replace the plastic tray and close the storage compartment.


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Storing a Flat Tire (Except ZR-1 Rear Tires)


NOTICE: Your Corvette’s radio receiver box is in the rear storage compartment. To help avoid damage, carefully place the jack, socket and wheel lock key into the foam container in the compartment. Do not toss or place the items against the radio receiver box or any wiring.


If you have not chosen the spare tire delete option, you’ll notice the road tire is larger than the spare, so you must adjust the tray to its lower position. Lift and push the tire carrier tray toward the front of the vehicle. The tray will drop to its lower position.


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F


Put the flat road tire on the tray. Lift the latch bolt, push it toward the front of the vehicle, and the bolt will drop down to the lower position.


Put the hooked end of the wheel wrench into the slot in the tray. Lift the tray using the wheel wrench and insert the latch bolt into the notch in the tray. To raise the tray, use the socket end of the wheel wrench to turn the latch bolt counterclockwise. Turn the latch bolt until it is snug.


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Put the wheel wrench back in its place under the driver’s seat. Be sure to tighten the wingnuts.


Storing a Flat Tire (ZR-1 Rear Tires)


A ZR-1 rear tire will not fit in the tray, so you must put it on the floor of the rear area. Put the flat tire in the storage bag provided. Place the tire on the rear area floor. Use the luggage straps to hold the tire in place. Loosen the straps, then attach each end of the longer strap to the rear cargo hooks. Attach the other strap to the hook behind the console.


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Compact Spare Tire (If So Equipped) Although the compact spare was fully inflated when your vehicle was new, it can lose air after a time. Check the inflation pressure regularly. It should be 60 psi (420 Wa). After installing the compact spare on your vehicle, you should stop as soon as possible and make sure your spare tire is correctly inflated. The compact spare is made to perform well at posted speed limits for distances up to 3,000 miles (5 000 km), so you can finish your trip and have your full-size tire repaired or replaced where you want. Of course, it’s best to replace your spare with a full-size tire as soon as you can. Your spare will last longer and be in good shape in case you need it again.


Tighten the straps by pulling on the loose ends. When the tire is stored in the rear cargo area, you can’t store a removable roof panel. It will not fit into the latches properly. Raise the tire carrier tray to its upper position and tighten the latch bolt until it is snug. Put the wheel wrench back in its place under the driver’s seat. Be sure to tighten the wingnuts.


5-40


If You’re Stuck: In Sand, Mud, Ice or Snow What you don’t want to do when your vehicle is stuck is to spin your wheels too fast. The method known as “rocking” can help you get out when you’re stuck, but you must use caution.


NOTICE: Don’t take your compact spare through an automatic car wash with guide rails. The compact spare can get caught on the rails. That can damage the tire and wheel, and maybe other parts of your vehicle.


Don’t use your compact spare on some other vehicle. And don’t mix your compact spare or wheel with other wheels or tires. They won’t fit. Keep your spare and its wheel together.


NOTICE: Tire chains won’t fit your compact spare. Using them will damage your vehicle and destroy the chains too. Don’t use tire chains on your compact spare.


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I NOTICE:


Spinning your wheels can destroy parts of your vehicle as well as the tires. If you spin the wheels too fast while shifting your transmission back and forth, you can destroy your transmission.


For information about using tire chains on your vehicle, see “Tire Chains” in the Index.


Rocking your vehicle to get it out: First, turn your steering wheel left and right. That will clear the area around your front wheels. You should turn your ASR system off. (See “ASR System” in the Index.) Then shift back and forth between REVERSE (R) and a forward gear (or with a manual transmission, between FIRST (1) or SECOND (2) gear and REVERSE (R)), spinning the wheels as little as possible. Release the accelerator pedal while you shift, and press lightly on the accelerator pedal when the transmission is in gear. If that doesn’t get you out after a few tries, you may need to be towed out. If you do need to be towed out, see “Towing Your Vehicle” in the Index.


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e


Section 6 Service and Appearance Care


Here you will find information about the care of your Corvette. This section begins with service and fuel information, and then it shows how to check important fluid and lubricant levels. There is also technical information about your vehicle, and a part devoted to its appearance care. Service Your Chevrolet dealer knows your vehicle best and wants you to be happy with it. We hope you’ll go to your dealer for all your service needs. You’ll get genuine GM parts and GM-trained and supported service people.


We hope you’ll want to keep your GM vehicle all GM. Genuine GM parts have one of these marks:


Doing Your Own Service Work If you want to do some of your own service work, you’ll want to get the proper Corvette Service Manual. It tells you much more about how to service your Corvette than this manual can. To order the proper service manual, see “Service Publications’’ in the Index.


6-1


Your vehicle has an air bag system. Before attempting to do your own service work, see “Servicing Your Air Bag-Equipped Corvette” in the Index. You ;should keep a record with all parts receipts and list the mileage and the date of any service work you perform. See “Maintenance Record” in the Index.


NOTICE: If you try to do your own service work without knowing enough about it, your vehicle could be damaged.


Fuel 5.7L LT5 (Code J) Engine The 8th digit of your vehicle identification number (VIN) shows the code letter for your engine. You will find the VIN at the top left of your instrument panel. (See “Vehicle Identification Number” in the Index.) Use premium unleaded gasoline rated at 9 1 octane or higher. You may use middle grade or regular unleaded gasolines, but your vehicle may not accelerate as well. The gasoline you use should meet specifications ASTM D4814 in the United States and CGSB 3.5-92 in Canada. These fuels should have the proper additives, so you should not have to add anything to the fuel. In the United States and Canada, it’s easy to be sure you get the right kind of gasoline (unleaded). You’ll see UNLEADED right on the pump. And only unleaded nozzles will fit into your vehicle’s filler neck.


6-2


Be sure the posted octane is at least 91. If the octane is less than 91, you may get a heavy knocking noise when you drive. (In an emergency, you may be able to use lower octane -- as low as 87 -- if heavy knocking does not occur.) If you’re using 91 or higher octane unleaded gas and you still get heavy knocking, your engine needs service. What about gasoline with blending materials that contain oxygen (oxygenates), such as MTBE or alcohol? MTBE is “methyl tertiary-butyl ether.” Fuel that is no more than 15% MTBE is fine for your vehicle. Ethanol is ethyl or grain alcohol. Properly-blended fuel that is no more than 10% ethanol is fine for your vehicle.


i Wethanol is methyl or wood alcohol.


NOTICE: Fuel that is more than 5 % methanol is bad for your vehicle. Don’t use it. It can corrode metal parts in your fuel system and also damage plastic and rubber parts. That damage wouldn’t be covered under your warranty. And even at 5 % or less, there must be “cosolvents” and corrosion preventers in this fuel to help avoid these problems.


6-3


Gasolines for Cleaner Air Your use of gasoline with deposit control additives will help prevent deposits from forming in your engine and fuel system. That helps keep your engine in tune and your emission control system working properly. It’s good for your vehicle, and you’ll be doing your part for cleaner air. Many gasolines are now blended with oxygenates. General Motors recommends that you use gasolines with these blending materials, such as MTBE and ethanol. By doing so, you can help clean the air, especially in those parts of the country that have high carbon monoxide levels. In addition, some gasoline suppliers are now producing reformulated gasolines. These gasolines are specially designed to reduce vehicle emissions. General Motors recommends that you use reformulated gasoline. By doing so, you can help clean the air, especially in those parts of the country that have high ozone levels. You should ask your service station operators if their gasolines contain deposit control additives and oxygenates, and if they have been reformulated to reduce vehicle emissions.


5.7L LT1 (Code P) Engine Use premium unleaded gasoline rated at 91 octane or higher for best performance. You may use middle grade or regular unleaded gasolines, but your vehicle may not accelerate as well. The gasoline you use should meet specifications ASTM D4814 in the United States and CGSB 3.5-92 in Canada. These fuels should have the proper additives, so you should not have to add anything to the fuel. In the United States and Canada, it’s easy to be sure you get the right kind of gasoline (unleaded). You’ll see UNLEADED right on the pump. And only unleaded nozzles will fit into your vehicle’s filler neck. Be sure the posted octane for premium is at least 91 (at least 89 for middle grade and 87 for regular). If the octane is less than 87, you may get a heavy knocking noise when you drive. If it’s bad enough, it can damage your engine. If you’re using fuel rated at 91 octane or higher and you still hear heavy knocking, your engine needs service. But don’t worry if you hear a little pinging noise when you’re accelerating or driving up a hill. That’s normal and you don’t have to buy a higher octane fuel to get rid of pinging. It’s the heavy, constant knock that means you have a problem.


6-4


What about gasoline with blending materials that contain oxygen (oxygenates), such as MTBE or alcohol? MTBE is “methyl tertiary-butyl ether.” Fuel that is no more than 15% MTBE is fine for your vehicle. Ethanol is ethyl or grain alcohol. Properly-blended fuel that is no more than 10% ethanol is fine for your vehicle. Methanol is methyl or wood alcohol.


NOTICE: Fuel that is more than 5% methanol is bad for your vehicle. Don’t use it. It can corrode metal parts in your fuel system and also damage plastic and rubber parts. That damage wouldn’t be covered under your warranty. And even at 5% or less, there must be “cosolvents” and corrosion preventers in this fuel to help avoid these problems.


Fuels in Foreign Countries If you plan on driving in another country outside the U.S. or Canada, unleaded fuel may be hard to find. Do not use leaded gasoline. If you use even one tankful, your emission controls won’t work well or at all. With continuous use, spark plugs can get fouled, the exhaust system can corrode, and your engine oil can deteriorate quickly. Your vehicle’s oxygen sensor will be damaged. All of that means costly repairs that wouldn’t be covered by your warranty. To check on fuel availability, ask an auto club, or contact a major oil company that does business in the country where you’ll be driving. You can also write us at the following address for advice. Just tell us where you’re going and give your Vehicle Identification Number (VIN).


General Motors Overseas Distribution Corporation North American Export Sales (NAES) 1908 Colonel Sam Drive Oshawa, Ontario L1H 8P7


6-5


Filling Your Tank


While refueling, place the cap in the indent to the left of the filler neck.


To take off the cap, turn it slowly to the left (counterclockwise).


The cap is under a hinged door on the rear decklid of your vehicle.


Be careful not to spill gasoline. Clean gasoline from painted surfaces as soon as possible. See “Cleaning the Outside of Your Corvette” in the Index. When you put the cap back on, turn it to the right until you hear at least three clicks.


NOTICE: If you need a new cap, be sure to get the right type. Your dealer can get one for you. If you get the wrong type, it may not fit or have proper venting, and your fuel tank and emissions system might be damaged.


6-7


Checking Things Under the Hood Hood Release


To open the hood, first pull the handle inside the vehicle.


Then go to the side of the vehicle and pull up on the rear edge of the hood, near the windshield.


6-8


You’ll see the following when you open the hood with the LTl engine: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.


Hydraulic Clutch Fluid Reservoir (if equipped) Brake Fluid Reservoir Battery Electric Engine Fan Air Cleaner Coolant Recovery Tank Power Steering Fluid Reservoir Engine Oil Fill Cap Engine Oil Dipstick Windshield Washer Fluid Reservoir Coolant High Fill Reservoir Automatic Transmission Dipstick (if equipped)


6-9


Before closing the hood, be sure all the filler caps are on.


6-10


You’ll see the following when you open the hood with the LT5 engine: 1. Hydraulic Clutch Fluid Reservoir 2. Brake Fluid Reservoir 3. Battery 4. Electric Engine Fan


5. 6. 7. 8. 9. 10. 11.


Air Cleaner Coolant Recovery Tank Power Steering Fluid Reservoir Engine Oil Fill Cap Engine Oil Dipstick Windshield Washer Fluid Reservoir Coolant High Fill Reservoir


Before closing the hood, be sure all the filler caps are on,


Then release the hood strut by moving it to the centered position and lowering the hood. Lower the hood until the bottom of the hood is the same height as the top of the windshield, then release it.


6-11


Engine Oil If you have the LT1 engine, it’s a good idea to check your engine oil level every time you get fuel. In order to get an accurate reading, the oil must be warm and the vehicle must be on level ground.


If you have the LT5 engine, the best time to ~ check your engine oil is when the engine is cold.


If you run the engine, the engine oil won’t drain back into the pan fast enough. Give the oil two hours to drain back into the oil pan. If you don’t, the oil dipstick might not show the actual level.


Turn off the engine and give the oil a few minutes to drain back into the oil pan. If you don’t, the oil dipstick might not show the actual level.


6-12


-


. .... *.*.*.


e...


To Check Engine Oil Pull out the dipstick and clean it with a paper towel or a cloth, then push it back in all the way. Remove it again, keeping the tip down.


LTl Engine When to Add Oil If the oil is at or below the ADD mark you’ll need to add some oil. But you must use the right kind. This part explains what kind of oil to use. For crankcase capacity, see “Capacities and Specifications” in the Index.


NOTICE: Don’t add too much oil. If your engine has so much oil that the oil level gets above the upper mark that shows the proper operating range, your engine could be damaged.


6-13


Just fill it enough to put the level somewhere in the proper operating range. Push the dipstick all the way back in when you’re through.


What Kind of Oil to Use Look for two things: 0 GM4718M


The Corvette engine requires a special oil meeting GM Standard GM4718M. Oils meeting this Standard may be identified as synthetic. However, not all synthetic oils will meet this GM Standard. You should look for and use only an oil that meets GM Standard GM47 1 8M.


NOTICE: If you use oils that don’t have the GM4718M Standard designation, you can cause engine damage not covered by your warranty.


LT5 Engine


6-14


RECOMMENDED SAE VISCOSITY GRADE ENGINE OILS


FOR BEST FUEL ECONOMY AND COLD STARTING, SELECT THE LOWEST SAE VISCOSITY GRADE OIL FOR THE EXPECTED TEMPERATURE MNGE.


HOT


WEATHER


LOOK


FOR THIS SYMBOL


1-J


--


SAE 1OW-30


SAE 5W-30 PREFERRED


COLD


WEATHER


DO NOT USE SAE 2OW-50 OR ANY OTHER GRADE OIL NOT RECOMMENDED


SAE 5W-30 As shown in the viscosity chart, SAE 5W-30 is best for your vehicle. However, you can use SAE 1OW-30 if it’s going to be 0°F (-1S.OC) or above. These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils such as SAE 20W-50.


Oils meeting these requirements should also have the “Starburst” symbol on the container.


The “Starburst” symbol indicates that the oil has been certified by the American Petroleum Institute (API), and is preferred for your gasoline engine. These oils may also be identified as API SH.


6-15


@


synthetic oil, which meets all requirements for


You should look for this on the oil container, and use only those oils that are identified as meeting GM Standard 4718M and have the “Starburst” symbol on the front of the oil container. Your Corvette engine is filled at the factory with a Mobil 1 your vehicle. Substitute Oil (LTl Only): When adding oil to maintain engine oil level, oil meeting GM Standard GM47 18M may not be available. You can add substitute oil designated SAE 5W-30 with the “Starburst” symbol or API Service SH at all temperatures. If temperatures are above 0” F (- 18 O C), you may substitute SAE 1OW-30 with the “Starburst” symbol or API Service SH oil. This oil should not be used for an oil change. Substitute Oil (LT5 Only): When adding oil to maintain engine oil level, if an oil meeting GM Standard GM47 18M is not available, you can use oil designated SAE 1OW-30 with the “Starburst” symbol or API Service SH at all temperatures. This oil should not be used for an oil change. Engine Oil Additives Don’t add anything to your oil. Your Chevrolet dealer is ready to advise if you think something should be added.


6-16


When to Change Engine Oil See if any one of these is true for you: 0 Most trips are less than 5 to 10 miles (8 to 16 km).


This is particularly important when outside temperatures are below freezing. Most trips include extensive idling (such as frequent driving in stop and go traffic). Most trips are through dusty areas.


If any one of these is true for your vehicle, you need to change your oil and filter every 3,000 miles (5 000 km) or 3 months -- whichever comes first. (See “Engine Oil Life Monitor” in the Index.) If none of them is true, change the oil and filter every 7,500 miles (12 500 km) or 12 months -- whichever comes first. (See “Engine Oil Life Monitor” in the Index.) Engine Coolant Heater An engine coolant heater can be a big help if you have to park outside in very cold weather, 0” F (- 1 8 O C) or colder. If your vehicle has this feature, see “Engine Coolant Heater” in the Index.


What to Do with Used Oil Did you know that used engine oil contains certain elements that may be unhealthy for your skin and could even cause cancer? Don’t let used oil stay on your skin for very long. Clean your skin and nails with soap and water, or a good hand cleaner. Wash or throw away clothing or rags containing used engine oil. (See the manufacturer’s warnings about the use and disposal of oil products.) Used oil can be a real threat to the environment. If you change your own oil, be sure to drain all free-flowing oil from the filter before disposal. Don’t ever dispose of oil by putting it in the trash, pouring it on the ground, into sewers, or into streams or bodies of water. Instead, recycle it by taking it to a place that collects used oil. If you have a problem properly disposing of your used oil, ask your dealer, a service station or a local recycling center for help.


Air Cleaner


Refer to the Maintenance Schedule to determine when to replace the air filter. See “Scheduled Maintenance Services” in the Index.


6-17


Air Filter Replacement


I NOTICE:


If the air cleaner is off, a backfire can cause a damaging engine fire. And, dirt can easily get into your engine, which will damage it. Always have the air cleaner in place when you’re driving.


To remove the air filter: 1. Unscrew the three knobs.


6-18


2. Disconnect the clamp from the manifold.


3. Pull the air cleaner straight up. 4. Open the air cleaner and remove the filter.


6-19


Automatic Transmission Fluid When to Check and Change A good time to check your automatic transmission fluid level is when the engine oil is changed. Refer to the Maintenance Schedule to determine when to change your fluid. See “Scheduled Maintenance Services” in the Index. How to Check Because this operation can be a little difficult, you may choose to have this done at your Chevrolet dealer Service Department. If you do it yourself, be sure to follow all the instructions here, or you could get a false reading on the dipstick.


I I NOTICE:


Too much or too little fluid can damage your transmission. Too much can mean that some of the fluid could come out and fall on hot engine parts or exhaust system parts, starting a fire. Be sure to get an accurate reading if you check your transmission fluid.


5. Reverse the steps.


0 Align the tabs to the slots in the bottom of the


assembly before you replace it.


0 Install the short knob into the middle hole first.


Then install the longer knobs into the outer holes.


6-20


Wait at least 30 minutes before checking the transmission fluid level if you have been driving:


When outside temperatures are above 90°F (32°C). At high speed for quite a while. In heavy traffic -- especially in hot weather.


To get the right reading, the fluid should be at normal operating temperature, which is 1 80°F to 200°F (82 "C to 93 " C). To check transmission fluid hot: Get the vehicle warmed up by driving about 15 miles (24 km) when outside temperatures are above 50°F (10°C). You may have to drive longer to bring the fluid to 180°F to 200" F (82°C to 93 "C) in colder outside temperatures. See "Automatic Transmission Fluid Temperature Reading" in the Index. To check transmission fluid cold: A cold check is made after the vehicle has been sitting for eight hours or more with the engine off and is used only as a reference. Let the engine run at idle for five minutes if outside temperatures are 50°F (10°C) or more. If it's colder than 50°F (IOOC), you may have to idle the engine longer. Should the fluid level be low during a cold check, you must perform a hot check before adding fluid. This will give you a more accurate reading of the fluid level.


To check the fluid hot or cold


Park your vehicle on a level place. Keep the engine running. With the parking brake applied, place the shift lever in PARK (P). With your foot on the brake pedal, move the shift lever through each gear range, pausing for about three seconds in each range. Then, position the shift lever in PARK (P). Let the engine run at idle for three minutes or more. Then, without shutting off the engine, follow these steps:


1. Pull out the dipstick and wipe it with a clean rag or


paper towel.


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How to Add Fluid Refer to the Maintenance Schedule to determine what kind of transmission fluid to use. See “Recommended Fluids and Lubricants” in the Index. Add fluid only after checking the transmission fluid HOT. (A COLD check is used only as a reference.) If the fluid level is low, add only enough of the proper fluid to bring the level up to the HOT area for a hot check. It doesn’t take much fluid, generally less than a pint. Don ’t ove@ZZ. We recommend you use only fluid labeled DEXRON@-111, because fluid with that label is made especially for your automatic transmission. Damage caused by fluid other than DEXRON@-I11 is not covered by your new vehicle warranty.


After adding fluid, recheck the fluid level as described under “How to Check.”


a When the correct fluid level is obtained, push the


dipstick back in all the way.


2. Push it back in all the way, wait three seconds and


then pull it back out again.


3.


4.


Check both sides of the dipstick, and read the lower level. The fluid level should be in the area marked “80°F” for a cold check and will move into the “WARM” area as the temperature increases. When the fluid is at normal operating temperature ( 180 O F to 200”F, 82°C to 93”C), the level must be in the crosshatched area marked “1 90°F.” See “Automatic Transmission Fluid Temperature Reading” in the Index. If the fluid level is in the acceptable range, push the dipstick back in all the way.


6-22


Manual Transmission Fluid How to Check Because this operation can be difficult, you may choose to have this done at your Chevrolet dealer Service Department. If you do it yourself, be sure to follow all the instructions here, or you could get a false reading.


NOTICE: Too much or too little fluid can damage your transmission. Too much can mean that some of the fluid could come out and fall on hot engine parts or exhaust system parts, starting a fire. Be if you check your sure to get an accurate reading transmission fluid.


Check the fluid level only when your engine is off, the vehicle is parked on a level place and the transmission is cool enough for you to rest your fingers on the transmission case.


Then, follow these steps:


1. Remove the filler plug. 2. Check that the lubricant level is up to the bottom of


the filler plug hole.


3. If the fluid level is good, install the plug and be sure


it is fully seated. If the fluid level is low, add more fluid as described in the next steps.


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When to Check and What to Use


Refer to the Maintenance Schedule to determine how often you should check the fluid level in your clutch master cylinder reservoir and for the proper fluid. See “Owner Checks and Services” and “Recommended Fluids and Lubricants” in the Index.


How to Add Fluid Here’s how to add fluid. Refer to the Maintenance Schedule to determine what kind of fluid to use. See “Recommended Fluids and Lubricants” in the Index. 1. Remove the filler plug. 2. Add fluid at the filler plug hole. Add only enough fluid to bring the fluid level up to the bottom of the filler plug hole.


3. Install the filler plug. Be sure the plug is fully seated. Hydraulic Clutch The clutch linkage in your vehicle is self-adjusting. The clutch master cylinder reservoir is filled with hydraulic clutch fluid. It isn’t a good idea to “top off’ your clutch fluid. Adding fluid won’t correct a leak. A fluid loss in this system could indicate a problem. Have the system inspected and repaired.


6-24


How To Check and Add Fluid (LT1 Engine Only) The clutch master cylinder is under the Powertrain Control Module (PCM) in the left rear area of the engine ADD mark on the reservoir. There are additional compartment. To check the fluid, look at the area between the PCM and the battery. To add fluid, remove the PCM unit.


You must loosen and remove the two screws before the PCM unit will lift out. Fluid should be added if the fluid level is at or below the


instructions on the reservoir cap. When returning the PCM to its proper position, make sure the unit is fully rearward in the bracket prior to installing the two screws. How to Check and Add Fluid (LT5 Engine Only) The clutch master cylinder is under the Engine Control Module (ECM) in the left rear area of the engine compartment. To check the fluid, look at the area and the battery. To add fluid, remove the ECM unit


between the ECM


6-25


Rear Axle When to Check Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant. See “Periodic Maintenance Inspections” in the Index. How to Check Lubricant


Loosen the two inboard nuts on the unit. Move the ECM unit to either side. Fluid should be added if the fluid level is at or below the ADD mark on the reservoir. There are additional instructions on the reservoir cap. When returning the ECM to its proper position, make sure the bolts are aligned with the slots in the bracket. Then gently push down on the unit. When replacing the unit, be careful not to over-tighten the nuts --just tighten them until they are snug.


6-26


If the level is below the bottom of the filler plug hole, you’ll need to add some lubricant. Add enough lubricant to raise the level to


the bottom of the filler plug hole.


What to Use Use a mixture of one-half clean water (preferably distilled) and one-half antifreeze that meets “GM Specification 1825M,” which won’t damage aluminum parts. You can also use a recycled coolant conforming to GM Specification 1825M with a complete coolant flush and refill. Use GM Engine Coolant Supplement (sealer) with any complete coolant flush and refill. If you use this mixture, you don’t need to add anything else.


What to Use To add lubricant when the level is low, use Axle Lubricant (GM Part No. 12345977) or SAE SOW-90 GL-5 gear lubricant. To completely refill after draining, add 4 ounces (1 18 ml) of Limited-Slip Differential Lubricant Additive (GM Part No. 1052358). Then fill to the bottom of the filler plug hole with Axle Lubricant (GM Part No. 12345977) or SAE 8OW-90 GL-5 gear lubricant. Engine Coolant The following explains your cooling system and how to add coolant when it is low. If you have a problem with engine overheating or if you need to add coolant to your high fill reservoir, see “Engine Overheating” in the Index. The proper coolant for your Corvette will:


Give freezing protection down to -34°F (-37°C). Give boiling protection up to 262 “F (128 ” C). Protect against rust and corrosion. Help keep the proper engine temperature. Let the warning lights work as they should.


6-27


NOTICE: If you use an improper coolant mix, your engine could overheat and be badly damaged. The repair cost wouldn’t be covered by your warranty. Too much water in the mix can freeze and crack the engine, radiator, heater core and other parts.


Adding Coolant To Check Coolant When your engine is cold, check the dipstick on the cap of the coolant recovery tank. The coolant level should be at COLD, or a little higher. When your engine is warm, the level on the dipstick should be up to the HOT, or a little higher.


6-28


Your Corvette also has a high fill reservoir located at the right rear of the engine compartment. If the recovery tank is very low or empty, also add coolant to the high fill reservoir. To add coolant at the high fill reservoir, see “Engine Overheating” in the Index.


To Add Coolant to the Recovery Tank If you need more coolant, add the proper mix at the coolant recovery tank, but only when your engine is cool. If the tank is very low or empty, also add coolant to the coolant high fill reservoir, see “Engine Overheating” in the Index for information.


Add coolant mix at the recovery tank, but be careful not to spill it.


6-29


1 Power Steering Fluid


A fluid loss in this system could indicate a problem. Have the system inspected and repaired.


0 When the engine compartment is hot the level should


be at the HOT or H mark.


0 When the engine compartment is cool, the level


should be at the COLD or C mark.


LT5 Engine


LTl Engine How To Check Power Steering Fluid When the engine compartment is cool, unscrew the cap and wipe the dipstick with a clean rag. Replace the cap and completely tighten it. Then remove the cap again and look at the fluid level on the dipstick. The level should be at the FULL COLD mark. Add enough fluid to bring the level up to the mark.


6-30


What to Add Refer to the Maintenance Schedule to determine what kind of fluid to use. See “Recommended Fluids and Lubricants” in the Index.


To Add


NOTICE: When adding power steering fluid or making a complete fluid change, always use the proper fluid. Failure to use the proper fluid can cause leaks and damage hoses and seals.


Windshield Washer Fluid What to Use When you need windshield washer fluid, be sure to read the manufacturer’s instructions before use. If you will be operating your vehicle in an area where the temperature may fall below freezing, use a fluid that has sufficient protection against freezing.


Open the cap labeled WASHER FLUID ONLY. Add washer fluid until the tank is full.


6-31


NOTICE:


When using concentrated washer fluid, follow the manufacturer’s instructions for adding water. Don’t mix water with ready-to-use washer fluid. Water can cause the solution to freeze and damage your washer fluid tank and other parts of the washer system. Also, water doesn’t clean as well as washer fluid.


0 Fill your washer fluid tank only 3/4 full


when it’s very cold. This allows for expansion, which could damage the tank if it is completely full. Don’t use radiator antifreeze in your windshield washer. It can damage your washer system and paint.


6-32


Brakes Brake Master Cylinder Your brake master cylinder is here. It is filled with DOT-3 brake fluid.


There are only two reasons why the brake fluid level in your master cylinder might go down. The first is that the brake fluid goes down to an acceptable level during normal brake lining wear. When new linings are put in, the fluid level goes back up. The other reason is that fluid is leaking out of the brake system. If it is, you should have your brake system fixed, since a leak means that sooner or later your brakes won’t work well, or won’t work at all. So, it isn’t a good idea to “top off’


your brake fluid. Adding brake fluid won’t correct a leak. If you add fluid when your linings are worn, then you’ll have too much fluid when you get new brake linings. You should add (or remove) brake fluid, as necessary, only when work is done on the brake hydraulic system.


On vehicles equipped with the LT5 (Code J) engine, the brake warning light will come on when your brake fluid falls to a low level. See “Brake System Warning Light” in the Index. For vehicles equipped with the LT1 (Code P) engine, refer to the Maintenance Schedule to determine when to check your brake fluid. See “Periodic Maintenance Inspections” in the Index. To Check Brake Fluid You can check the brake fluid without taking off the cap. Just look at the brake fluid reservoir. The fluid level should be above the MIN mark on the reservoir. If it isn’t, have your brake system checked to see if there is a leak. After work is done on the brake hydraulic system, make sure the level is between the MIN and MAX marks.


6-33


Brake Wear Your Corvette has four-wheel disc brakes. Disc brake pads have built-in wear indicators that make high-pitched warning sound when the brake pads are worn and new pads are needed. The sound may come and go or be heard all the time your vehicle is moving (except when you are pushing on the brake pedal firmly).


What to Add When you do need brake fluid, use only DOT-3 brake fluid -- such as Delco Supreme ll@ (GM Part No. 1052535). Use new brake fluid from a sealed container only, and always clean the brake fluid reservoir cap before removing it.


NOTICE: 0 Don’t let someone put in the wrong kind of


fluid. For example, just a few drops of mineral-based oil, such as engine oil, in your brake system can damage brake system parts so badly that they’ll have to be replaced. Brake fluid can damage paint, so be careful not to spill brake fluid on your vehicle. If you do, wash it off immediately. See “Appearance Care” in the Index.


6-34


NOTICE:


I Continuing to drive with worn-out brake pads


could result in costly brake repair.


Some driving conditions or climates may cause a brake squeal when the brakes are first applied or lightly applied. This does not mean something is wrong with your brakes. Brake linings should always be replaced as complete axle sets. Brake Pedal Travel See your dealer if the brake pedal does not return to normal height, or if there is a rapid increase in pedal travel. This could be a sign of brake trouble. Brake Adjustment As you make brake stops, your disc brakes automatically adjust for wear.


Replacing Brake System Parts The braking system on a modem vehicle is complex. Its many parts have to be of top quality and work well together if the vehicle is to have really good braking. Vehicles we design and test have top-quality GM brake parts in them, as your Corvette does when it is new. When you replace parts of your braking system -- for example, when your brake linings wear down and you have to have new ones put in -- be sure you get new genuine GM replacement parts. If you don’t, your brakes may no longer work properly. For example, if someone puts in brake linings that are wrong for your vehicle, the balance between your front and rear brakes can change -- for the worse. The braking performance you’ve come to expect can change in many other ways if someone puts in the wrong replacement brake parts. Battery Every new Corvette has a Delco Freedom@ battery. You never have to add water to one of these. When it’s time for a new battery, we recommend a Delco Freedom@ battery. Get one that has the replacement number shown on the original battery’s label. For battery replacement, see your dealer or the Corvette Service Manual. To purchase a service manual, see “Service Publications” in the Index.


6-35


Vehicle Storage If you’re not going to drive your vehicle for 25 days or more, take off the black, negative (-) cable from the battery. This will help keep your battery from running down.


Bulb Replacement For the proper type of replacement bulb, see “Replacement Bulbs” in the Index. Halogen Bulbs


Contact your dealer to learn how to prepare your vehicle for longer storage periods.


6-36


Headlamp


4. Remove the two screws from both sides of the cover.


Before you remove the last screw, put your hand under the cover to hold it.


5. Reach around the hood and pull the cover straight


out. Be careful not to scratch the paint.


1. Open the hood. 2. The headlamps need to be halfway open. Turn the


headlamp switch on, then quickly back to the parking lamps setting. You may have to do this a few times to get the half-open position. You can also open the headlamps manually. See “Headlamp Doors” in the Index.


3. Remove the two screws on each side of the


headlamp.


6-37


Fog Lamp You can reach the fog lamps from under the front bumper. 1. Remove the screw in the access door. Open the door. 2. Turn the bulb base counterclockwise 118 turn and


pull it out.


3. Disconnect the bulb base from the wiring harness. 4. Reverse the steps with a new bulb.


6. Remove the four screws from the retainer near each comer of the headlamp. Don’t move the large-head adjusting screws or your headlamp will not be aimed properly. Hold the headlamp and remove the retainer.


7. Remove the headlamp and unplug the electrical


connector.


8. Reverse the steps with a new headlamp.


Front Turn Signal


1. Open the hood. 2. Find the socket at the front of the engine


compartment.


3. Turn the socket counterclockwise 1/4 turn and pull it


out.


4. Push the bulb in, turn it counterclockwise, then pull


it out.


5. Reverse the steps with a new bulb. The socket has three large tabs and one small tab. Be sure to line up the small tab with the small notch in the housing.


6-39


Rear Turn Signal and Taillamp


1. Remove the screws.


6-40


2. 3.


4.


Pull the lens out. Push the bulb in, turn it counterclockwise, then pull it out. Reverse the steps with a new bulb. To prevent water from getting inside the lens, make sure the lens seal is properly positioned.


Back-up Lamp


You can reach the back-up lamps by removing the license plate and reachmg through the opening. 1. Push the tab on the socket and turn it


counterclockwise.


2. Push the bulb in, turn it counterclockwise, then pull


it out.


3. Reverse the steps with a new bulb.


6-41


Sidemarker


1. Turn the socket counterclockwise 1/4 turn and


pull it out.


You can reach the front sidemarker from inside the engine compartment. Reach the rear sidemarker from under the vehicle.


2. Pull the bulb straight out. 3. Reverse the steps with a new bulb.


6-42


Cornering Lamp


You can reach the front cornering lamp from inside the engine compartment. Reach the rear cornering lamp from under the vehicle. 1. Press the tab on the socket, turn it counterclockwise


1/4 turn and pull it out.


2. Push the bulb in, turn it counterclockwise, then pull


it out.


3. Reverse the steps with a new bulb.


6-43


Rear Cargo Compartment Lamp (Coupe)


1.


Pry the cover off with a screwdriver. Be sure to pry from the rear side, or you could break the tab on the cover. Remove the bulb. Reverse the steps with a new bulb.


2. 3. Rear, Cargo Compartment Lamp (Convertible) 1. 2. 3.


Pry the cover off with a screwdriver. Remove the bulb. Reverse the steps with a new bulb.


6-44


Center High-Mounted Stoplamp (Except ZR-1)


1. Turn the socket counterclockwise 1/4 turn and


pull it out.


You can reach the center high-mounted stoplamp by removing the license plate and reaching through the opening.


2. Push the bulb in, turn it counterclockwise, then pull


it out.


3. Reverse the steps with a new bulb.


6-45


Center High-Mounted Stoplamp (ZR-1)


3. Gently pull the assembly away from the roof.


1. Open the hatch. 2. Remove the two screws on the interior side of hatch,


near the roof.


4. Remove the two screws on the underside of the


assembly.


5. Remove the rubber backing and pry the lens from the


assembly.


6-46


Windshield Wiper Blades


6. Rock the bulb back and forth while pulling up to


remove it.


7. Reverse the steps with a new bulb.


It’s a good idea to clean or replace the wiper blade assembly every six months. To remove the wiper blade assembly: 1. Open the hood to gain access to the windshield wipers. 2. Insert a screwdriver into the RELEASE slot (A) on the wiper arm. (There’s an arrow on the wiper arm pointing to the slot.)


3. Push down gently to release the wiper blade


assembly (B) from the arm.


4. Reverse the steps to install the assembly.


6-47


Tires We don’t make tires. Your new vehicle comes with high-quality tires made by a leading tire manufacturer. These tires are warranted by the tire manufacturers and their warranties are delivered with every new Corvette. If your spare tire is a different brand than your road tires, you will have a tire warranty folder from each of these manufacturers.


6-48


Extended Mobility Tires (Option) If your Corvette has optional Goodyear Extended Mobility Tires (EMT’s), the tires will have “EMT” molded on the sidewalls. Your vehicle may also have a spare tire delete option. With the spare tire delete option, there’s no spare tire, no tire changing equipment and no place to store a tire in the vehicle. Extended Mobility Tires perform so well without any air that a Low Tire Pressure Warning System (LTPWS) is used to alert you if a tire has lost pressure. A LOWELAT TIRE light will appear on your Driver Information Center if a tire’s inflation pressure is less than 25 psi (170 kPa). If the LOW/FLAT TIRE light comes on, check your tire pressures as soon as you can. See “Low Tire Pressure Warning System” in the Index for additional information.


If a tire goes flat, you won’t need to stop on the side of the road to change the tire. You can just keep on driving. The shorter the distance you drive and the slower the speed, the greater the chance that the tire will not have to be replaced. If you drive on a deflated EMT for distances of 50 miles (80 km) or less and at speeds of 55 mph (90 km/h) or less, there is a good chance that the tire can be repaired. The tire can operate effectively with no air pressure for up to 200 miles (320 km) at speeds up to 55 mph (90 kmk), but the tire would then have to be replaced. Also remember: When a tire is filled with air, it provides a cushion between the road and the wheel. Because you do not have this cushion when driving on a deflated tire, try to avoid potholes that could damage your wheel and require replacement of it. Some road hazards can damage a tire beyond repair. This damage could occur before you’ve driven on the tire in a deflated condition. Whenever a tire has been damaged, or if you’ve driven any distance on a deflated EMT, check with a Goodyear EMT Service Center to determine whether the tire can be repaired or should be replaced. To maintain your vehicle’s extended mobility feature, all replacement tires must be Extended Mobility Tires. See the Goodyear Extended Mobility Tire Owner’s Manual and Limited Warranty supplied with your Corvette for additional information.


6-49


I


I NOTICE: (Continued)


If your tires have too much air (overinflation), you can get: 0 Unusual wear 0 Bad handling 0 Rough ride 0 Needless damage from road hazards.


When to Check Check your tires once a month or more. Don’t forget your compact spare tire. It should be at 60 psi (420 Wa). How to Check Use a good quality pocket-type gage to check tire pressure. Simply looking at the tires will not tell you the pressure, especially if you have radial tires -- which may look properly inflated even if they’re underinflated. If your tires have valve caps, be sure to put them back on. They help prevent leaks by keeping out dirt and moisture.


Inflation - Tire Pressure


The Tire-Loading Information label which is on the driver’s door shows the correct inflation pressures for your tires, when they’re cold. “Cold” means your vehicle has been sitting for at least three hours or driven no more than a mile. For competitive driving or high-speed driving (over 150 mph or 240 km/h), make sure your tires are inflated to 35 psi (240 Wa). When you end this type of driving, reduce the “cold” inflation pressures (if necessary) to those listed on the Tire-Loading Information label.


I I NOTICE:


Don’t let anyone tell you that underinflation or overidation is all right. It’s not. If your tires don’t have enough air (underinflation) you can get:


Too much flexing


0 Too much heat


Tire overloading Bad wear


0 Bad handling 0 Bad fuel economy.


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(Continued)


Tire Rotation The tires on your Corvette are directional, asymmetrical, and are different sizes front to rear. Due to this, your tires should not be rotated. Each tire and wheel should be used only in the position it is in.


When it’s Time for New Tires


You need a new tire if


You can see the indicators at three or more places around the tire. You can see cord or fabric showing through the tire’s rubber.


0 The tread or sidewall is cracked, cut or snagged deep


enough to show cord or fabric. The tire has a bump, bulge or split.


0 The tire has a puncture, cut, or other damage that


can’t be repaired well because of the size or location of the damage.


One way to tell when it’s time for new tires is to check the treadwear indicators, which will appear when your tires have only 1/16 inch (1.6 mm) or less of tread remaining.


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Buying New Tires To find out what kind and size of tires you need, look at the Tire-Loading Information label. The tires installed on your vehicle when it was new had a Tire Performance Criteria Specification (TPC Spec) number on each tire’s sidewall. When you get new tires, get ones with that same TPC Spec number. That way, your vehicle will continue to have tires that are designed to give proper endurance, handling, speed rating, traction, ride and other things during normal service on your vehicle. If your tires have an all-season tread design, the TPC number will be followed by an “MS” (for mud and snow). If you ever replace your tires with those not having a TPC Spec number, make sure they are the same size, load range, speed rating and construction type (bias, bias-belted or radial) as your original tires.


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Uniform Tire Quality Grading The following information relates to the system developed by the United States National Highway Traffic Safety Administration which grades tires by treadwear, traction and temperature performance. (This applies only to vehicles sold in the United States.)


Treadwear The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For


example, a tire graded 150 would wear one and a half (1 1/2) times as well on the government course as a tire graded 100. The relative performance of tires depends upon the actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate.


Traction - A, B, C


The traction grades, from highest to lowest are: A, B, and C. They represent the tire’s ability to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance. Warning: The traction grade assigned to this tire is based on braking (straight-ahead) traction tests and does not include cornering (turning) traction. Temperature - A, B, C The temperature grades are A (the highest), B, and C, representing the tire’s resistance to the generation of heat and its ability to dissipate heat when tested under controlled conditions on a specified indoor laboratory test wheel. Sustained high temperature can cause the material of the tire to degenerate and reduce tire life, and


excessive temperature can lead to sudden tire failure. The grade C corresponds to a level of performance which all passenger car tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory test wheel than the minimum required by law. Warning: The temperature grade for this tire is established for a tire that is properly inflated and not overloaded. Excessive speed, underinflation, or excessive loading, either separately or in combination, can cause heat buildup and possible tire failure. These grades are molded on the sidewalls of passenger car tires. While the tires available as standard or optional equipment on General Motors vehicles may vary with respect to these grades, all such tires meet General Motors performance standards and have been approved for use on General Motors vehicles. All passenger type (P Metric) tires must conform to Federal safety requirements in addition to these grades.


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Wheel Alignment and Tire Balance The wheels on your vehicle were aligned and balanced carefully at the factory to give you the longest tire life and best overall performance. In most cases, you will not need to have your wheels aligned again. However, if you notice unusual tire wear or your vehicle pulling one way or the other, the alignment may need to be reset. If you notice your vehicle vibrating when driving on a smooth road, your wheels may need to be rebalanced. Wheel Replacement Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, the wheel, wheel bolts, and wheel nuts should be replaced. If the wheel leaks air, replace it (except some aluminum wheels, which can sometimes be repaired). See your Chevrolet dealer if any of these conditions exist. Your dealer will know the lund of wheel you need. Each new wheel should have the same load carrying capacity, diameter, width, offset, and be mounted the same way as the one it replaces. If you need to replace any of your wheels, wheel bolts, or wheel nuts, replace them only with new GM original


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equipment parts. This way, you will be sure to have the right wheel, wheel bolts, and wheel nuts for your Corvette model.


I NOTICE:


The wrong wheel can also cause problems with bearing life, brake cooling, speedometer/odometer calibration, headlamp aim, bumper height, vehicle ground clearance, and tire clearance to the body and chassis.


Used Replacement Wheels


Appearance Care Remember, cleaning products can be hazardous. Some are toxic. Others can burst into flame if you strike a match or get them on a hot part of the vehicle. Some are dangerous if you breathe their fumes in a closed space. When you use anything from a container to clean your Corvette, be sure to follow the manufacturer’s warnings and instructions. And always open your doors or windows when you’re cleaning the inside. Never use these to clean your vehicle:


Tire Chains


NOTICE: Don’t use tire chains; they can damage your vehicle.


Gasoline Benzene Naphtha Carbon Tetrachloride Acetone Paint Thinner Turpentine Lacquer Thinner Nail Polish Remover


They can all be hazardous -- some more than others -- and they can all damage your vehicle, too.


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Don’t use any of these unless this manual says you can. In many uses, these will damage your vehicle: 0 Alcohol 0 Laundry Soap


Bleach Reducing Agents


Cleaning the Inside of Your Corvette Use a vacuum cleaner often to get rid of dust and loose dirt. Wipe vinyl or leather with a clean, damp cloth. Your Chevrolet dealer has two GM cleaners, a solvent-type spot lifter and a foam-type powdered cleaner. They will clean normal spots and stains very well. Do not use them on vinyl or leather. Here are some cleaning tips:

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