1993 Chevrolet Suburban Owners Manual

AN470032

if there is a curb. A gentle

4-50

Parking Uphill

If there is a curb, turn your wheels to the left of your vehicle.

if the curb is at the right side

AN470039

AN470046

If you’re going uphill on a one-way street and you’re parking on the left side, your wheels should point to the right.

4-5 1

Your Driving and the Road

AN470054

to the right. of a one-way

If there is no curb when you’re parking uphill, turn the wheels If there is no curb when you’re parking uphill on the left side street, your wheels should be turned to the left. Torque Lock (Automatic Transmission) If you are parking on a hill and you don’t shift your transmission into (Park) properly, the weight of the vehicle may put too much force on the parking pawl in the transmission. out of P (Park). This is called “torque lock.” be sure how, see “Shifting Into When you are ready to drive, move the selector lever BEFORE you release the parking brake. If “torque lock” does occur, you may need yours a little uphill you can pull the shift lever out

to shift into P (Park) before you leave the driver’s seat.

P (Park)” in the Index.

of P (Park).

You may

find it difficult to pull the shift lever

To prevent torque lock, always

To find out

out of P (Park)

to take some of the pressure from the transmission,

so

to have another vehicle push

4-52

Winter Driving

Here are some

tips for winter driving.

AM480003

Have your vehicle in good shape for winter. Be sure your engine coolant mix is correct. Snow tires can help in loose snow, but they may give you less traction on ice than regular tires. snow, but may have snow tires at all. You may want

to travel over ice, you may not want

to put winter emergency supplies

If you do not expect to be driving in deep

in your vehicle.

to switch to

a supply of windshield a small shovel, a flashlight, a

if you will be

a piece of old

Include an ice scraper, a small brush or broom, washer fluid, a rag, some winter outer clothing, red cloth, and a couple of reflective warning triangles. And, driiing under severe conditions, include a small bag of sand, carpet or a couple of burlap bags to help provide traction. properly secure these items in your vehicle. Driving on Snow or Ice Most of the time, those places where your tires meet the road probably have good traction. However, if there is snow or ice between your tires and the road, you can have a very slippery situation. You’ll have need to be very careful.

a lot less traction or “grip” and

Be sure you

will

4-53

Your Driving and the Road

AN480018

Very cold snow or ice can be slick

to fall. Try to avoid driving on wet ice

wet ice can be even more trouble because it may of all. You can get “wet ice” when it’s about freezing

What’s the worst time for this? “Wet ice.” and hard to drive on. But offer the least traction (32”F, 0°C) and freezing rain begins until salt and sand crews can get there. Whatever the condition-smooth ice, packed, blowing or loose with caution. Accelerate gently. Try not accelerate too fast, the drive wheels will spin and polish the surface under the tires even more. Your anti-lock brakes improve your ability to make a hard stop on a slippery road. Even though you have the anti-lock braking system, you’ll want to begin stopping sooner than you would on dry pavement. See “Anti-lock” in the Index. Allow greater following distances on any slippery road.

to break the fragile traction. If you

snow-drive

Watch for slippery spots. The road might be fine until you hit a spot that’s covered with ice. On an otherwise clear road, ice patches may appear in shaded areas where the sun can’t reach: around clumps trees, behind buildings, or under bridges. Sometimes the surface curve or an overpass may remain icy when the surrounding roads are clear. If you see a it. Try not steering maneuvers.

to brake while you’re actually on the ice, and avoid sudden

patch of ice ahead of you, brake before you are on

of of a

4-54

I f You’re Caught in a Blizzard

I -

could be in a serious situation. You

your vehicle unless you know for sure that you are

If you are stopped by heavy snow, you should probably stay with near help and you can hike through the snow, Here are summon help and keep yourself and your passengers safe: Turn on your hazard flashers. Tie a been stopped by the you. If you have no blankets or extra clothing, make body insulators from can wrap around newspapers, burlap bags, rags, floor mats-anything you yourself or tuck under your You can run the engine

red cloth to your vehicle to alert police that you’ve snow. Put on

to keep warm, but be careful.

extra clothing or wrap a blanket around

clothing to keep warm.

some things to do to

Snow can trap exhaust gases under your vehicle. This can cause deadly CO (carbon monoxide) gas to get inside. you and kill you. You can’t see it is in your vehicle. Clear away vehicle, especially any that around again from time to time Open a window just a little on the side of the vehicle that’s away from the wind. This will help keep

is blocking your exhaust pipe. And check to be sure snow doesn’t collect there.

it or smell it, so you might not know snow from around the base

CO out.

CO could overcome

of your

4-55

Your Driving and the Road

AN480044

it keeps

battery to restart the

less fuel for the heat that you get and

fuel. When you run is, push the

for signaling later on with your headlights. Let the heater shut the engine off and close the window almost all the when

Run your engine only as long as you must. This saves the engine, make it go a little faster than just idle. That accelerator slightly. This uses the battery charged. You will need a well-charged vehicle, and possibly run for awhile. Then, way to preserve the heat. Start the engine again and repeat this only you feel really uncomfortable from the Preserve the fuel as long as you can. To help keep warm, you can get out of the vehicle and do some fairly vigorous exercises every half until help comes. If You’re Stuck in Deep Snow This manual explains how damaging it. See “Rocking Your Vehicle” Towing a mailer

cold. But do it as little as possible.

of deep snow without

to get the vehicle out

in the Index.

hour or so

I A

the correct equipment and drive properly, you can

If you don’t use lose control when you pull a trailer. For example, heavy, the brakes may not work passengers could be seriously injured. Pull a trailer only followed all the steps

in this section.

well-or even at all. You and your if you have

if the trailer is too

4-56

’

is different in handling,

I NOTICE Wing a trailer improperly can damage your vehicle and result in costly epairs not covered by your warranty. To pull a trailer correctly, follow the

it has to be used properly.

If it was built with trailering

I advice in this section. Every vehicle is ready for some trailer towing, options, as many are, it’s ready for heavier trailers. But trailering than just driving your vehicle by itself. Trailering means changes durability, and fuel economy. Successful, safe trailering takes correct equipment, and In it are many time-tested, important That’s the reason for this section. of these are important for your safety trailering tips and safety rules. Many and that of your passengers, So please read this section carefully before pull a trailer. I f You Do Decide To Pull A Trailer If you do, here are some important points. There are many different laws having your rig will be legal, not only where you live but also where you’ll be driving. A good source for this information can be state or provincial police. Consider using sway control with a utility model 3,000 pounds (1361 kg) or less, or with a wagon model if your trailer will weigh 4,000 pounds (1800 kg) or less. You should always use sway than 3,000 control with a utility model model if your trailer will weigh more pounds (1 361 kg), or with a wagon than 4,000 pounds (1800 kg). You can ask a hitch dealer about sway controls. Don’t tow a trailer at all during vehicle is driven. Your engine, axle, or other parts the first 500 miles (800 km) that you tow a trailer, don’t Then, during drive over 50 mph (80 kmlh) and don’t make starts at full throttle. That will help your engine and other parts heavier loads.

the first 500 miles (800 km) your new could be damaged.

to do with trailering. Make sure

if your trailer will weigh more

of your vehicle wear

in at the

if your trailer will weigh

you

4-57

Your Driving and the Road

Three important considerations have to do with weight:

Weight of the Trailer How heavy can a trailer safely be?

For utility vehicles, a trailer should never weigh more than (31 75.2 kg). For wagon models, a trailer should never weigh more than pounds (6125.6 kg).

7,000 pounds

10,000

But even that can be too heavy. It depends on how you plan For example, speed, altitude, road grades, outside temperature, and how much your vehicle is used to pull a trailer all are important. And, depend on any special equipment that you have ask your dealer for our trailering information or advice, or you can write us at the address listed in your Warranty and Owner Assistance Information Booklet. In Canada, write to:

on your vehicle. You can

to use your rig.

it can also

General Motors of Canada Limited Customer Assistance Center 1908 Colonel Sam Drive Oshawa, Ontario L1H 8P7

Weight of the Trailer Tongue The tongue load (A) of any trailer is it affects the total, gross weight (GVW) includes the curb weight and the people who will be riding in the vehicle. And you must add the tongue carrying that weight, too. See “Loading Your Vehicle” information about your vehicle’s maximum load capacity.

an important weight to measure because

of your vehicle. The gross vehicle weight of the vehicle, any cargo you may carry in

it,

load to the GVW because your vehicle will be

if you will tow a trailer,

in the Index for more

4-58

A

If they aren’t, you may be able

by moving some items around

the trailer and then the tongue,

AN490002 10% total loaded trailer weight (8). If you have a “weight-distributing” hitch, (B).

(A) should weigh 12% of the total loaded trailer weight

If you’re using a “dead-weight” hitch, the trailer tongue (A) should weigh of the the trailer tongue After you’ve loaded your trailer, weigh separately, to see if the weights are proper. to get them right simply Total Weight on Your Vehicle’s Tires Be sure your vehicle’s tires are inflated these numbers on the Certification label at the rear edge of the driver’s (or see “Loading Your Vehicle” the GVW limit for your vehicle. Hitches It’s important to have the correct hitch equipment. Crosswinds, large trucks going by, and rough roads are Here are some rules to follow:

cold tires. You’ll find door go over

a few reasons why you’ll need the right

in the Index). Then be sure you don’t

to the limit for

in the trailer.

hitch,

to use a ball-type

in the bumper.

a step bumper and you are going

in it to match the hitch and safety

If your vehicle has hitch, remove the pad and cut holes chain holes If you’ll be pulling weigh more than 3,000 pounds (1361 kg); or with a wagon model that 4,000 pounds (1 800 kg), be sure when loaded, will weigh more than use a properly mounted weight-distributing hitch and sway control proper size. This equipment and good handling when you’re driving.

a trailer with a utility model that, when loaded, will

is very important for proper vehicle loading

to of the

4-59

Your Driving and 0% Road

to make any holes If you do,

Will you have install a trailer hitch? when you remove the hitch. monoxide (CO) from your exhaust can get into your vehicle (see “Carbon Monoxide” in the Index). Dirt and water can, too.

in the body of your vehicle when you to seal the holes later

If you don’t seal them, deadly carbon

then be sure

of the trailer so that the tongue will not

for attaching safety chains. Always leave just

Safety Chains You should always attach chains between your vehicle and your trailer. Cross the safety chains under the tongue drop to the road if it becomes separated from the hitch. Instructions about safety chains may be provided by the trailer manufacturer. Follow the manufacturer’s recommendation enough slack so you can turn with your rig. And, never allow safety chains drag on the ground. Trailer Brakes If your trailer weighs more than its own brakes-and they must be adequate. Be sure instructions for the trailer brakes maintain them properly. Don’t tap into your vehicle’s brake system more than 0.02 cubic inch (0.3 cc) of fluid from your vehicles master cylinder. If it does, both braking systems won’t work well. You could even lose your brakes.

1,000 pounds (450 kg) loaded, then it needs

to install, adjust and

so you’ll be able

to read and follow the

if the trailer’s brake system will use

to

3,000 psi (20 650 kPa) of pressure?

Will the trailer brake parts take not, the trailer brake system must not be used with your vehicle. If everything checks out port on the master cylinder that sends fluid use copper tubing for this. Use steel brake tubing.

If you do, it will bend and finally break

this far, then make the brake fluid tap at the

to the rear brakes. But don’t off.

If

road, you’ll want

trailer requires a certain amount

of experience. Before setting out to get to know your rig. Acquaint yourself with of the trailer. And is now a good deal is by itself.

Driving with a Trailer Towing a for the open the feel of handling and braking with the added weight always keep in mind that the vehicle you are driving longer and not nearly Before you start, check the trailer hitch and platform, safety chains, electrical connector, lights, tires and mirror adjustment. start your vehicle and trailer moving and then apply the trailer brake controller by hand to be sure the brakes lets vou check your electrical connection at the same time.

so responsive as your vehicle

are working. This

If the trailer has electric brakes,

4-60

I

- vehicle, carbon monoxide

If you have a rear-most window open and you pull a trailer with your (CO) could come into your vehicle.

You

CO. It can cause unconsciousness or death (See in the Index). To maximize your safety when towing

can’t see or smell “Engine Exhaust” a trailer:

Have the exhaust system inspected for leaks and make necessary repairs before starting on your trip. Keep the rear-most windows closed. If exhaust does come rear or another opening, drive with your front, main heating cooling system on and with the fan on any speed. bring fresh, outside air because it only recirculates the air inside your vehicle. See “Comfort Controls”

in the Index.

This will into your vehicle. Do not use RECIR

into your vehicle through a window in the

or

avoid situations that

load is secure, and

as far behind the vehicle ahead as you would when

to be sure that the still working.

During your trip, check occasionally that the lights and any trailer brakes are Following Distance Stay at least twice driving your vehicle without a trailer. This can help you require heavy braking and sudden turns. Passing You’ll need more passing distance up ahead when you’re towing a trailer. And, because you’re a good deal longer, beyond the passed vehicle Backing Up Hold the bottom of the steering wheel with one hand. Then, trailer left, just move your hand to the left. move your hand someone guide you. Making Turns When you’re turning with a trailer, make wider turns than normal. your trailer wheels won’t strike other objects. Avoid jerky or sudden maneuvers. Signal well

to the right. Always back

before you can return

to your lane.

soft shoulders, curbs, road signs, trees,

you’ll need to go much farther

to move the

To move the trailer to the right, up slowly and,

if possible, have

Do this so

or in advance.

4-61

Your Driving and the Road

It’s important to

to turn, change lanes,

you’re about

to a lower gear before you start down a long

if the bulbs on the trailer are burned out. Thus, you may think

Turn Signals When Towing a Trailer to have a different turn signal When you tow a trailer, your vehicle has flasher and extra wiring. The green arrows on your instrument panel will flash or lane change. Properly hooked up, the trailer whenever you signal a turn lights will also flash, telling other drivers or stop. When towing a trailer, the green arrows on your instrument panel will flash for turns even drivers behind you are seeing your signal when they are not. check occasionally to be sure the trailer bulbs are still working. Driving on Grades Reduce speed and shift steep downgrade. If you don’t shift down, you might have so much that they would get On a long uphill grade, shift down and reduce your speed kmlh) or less to reduce the possibility of engine and transmission overheating. If you have an automatic transmission, you should a lower gear) when towing a trailer. Operating your vehicle a trailer will minimize heat buildup and extend the Or, if you have a manual transmission with fifth gear and you are towing a trailer, it’s better not need to, a lower gear). Parking on Hilk You really should not park your rig on a hill. rig could start to move. People can be injured and both your vehicle and the trailer can be damaged. But if you ever have

to park your rig on a hill, here’s how to do it:

to use fifth gear, just drive in fourth gear

hot and no longer work well.

If something goes wrong, your

(or, as you

or

to 45 mph (70

use D (or, as you need to,

in D when towing

life of your transmission.

to use your brakes

1. Apply your regular brakes, but don’t shift into

for a manual transmission.

P (Park) yet, or into gear

2. Have someone place chocks under the trailer wheels. 3, When the wheel chocks are in place, release the regular brakes

chocks absorb the load.

4. Reapply the regular brakes. Then apply your parking brake, and then

shift to P (Park), or R (Reverse) for a manual transmission. 5. If you have a four-wheel-drive vehicle, be sure the transfer case

drive gear-not

in N (Neutral).

until the

is in a

4-62

.

6. Release the regular brakes. CAUTION

is no

if the shift lever

Your vehicle can

to get out of your vehicle

It can be dangerous fully in P (Park) wi-. the parking brake firmly set. roll. If you have left the engine running, the vehicle can move suddenly. You or others could be injured. To be sure your vehicle won’t move, when you’re on fairly level ground, use the steps that follow. If you have four-wheel drive and your transfer case your vehicle will be free So, be sure the transfer case If you are parking on a hill, “Parking

to roll, even if your shift lever is in a drive gear-not

or if you’re pulling a trailer, also see

is in N (Neutral), is in P (Park) in N (Neutral).

Index.

in the

On

Hills”

When You Are Ready to Leave After Parking on 1. Apply your regular brakes and hold the pedal down while you:

a Hill

Start your engine. Shift into a gear; and Release the parking brake. the brake pedal.

2. Let up on 3. Drive slowly until the trailer is clear of the chocks. 4. Stop and have someone pick up and stow the chocks.

Maintenance When Trailer Towing Your vehicle will need service more often when you’re pulling a trailer. the Maintenance Schedule for more on this. Things that are especially important in trailer operation are automatic transmission fluid (don’t overfill), engine oil, axle lubricant, belts, cooling system, and brake adjustment. Each of these quickly. If you’re trailering, it’s a good idea you start your trip. Check periodically to see that all hitch nuts and bolts are tight.

is covered in this manual, and the Index will help you

find them to review these sections before

.See

4-63

Yiiur Driving and the Road

mailer Wiring Harness See “Trailer Wiring Harness” Power Winches If you wish vehicle is stationary or anchored.

to use a power winch on your vehicle,

in the Index.

only use it when your

transmission may be damaged.

Use the regular brakes, set the parking brake or block the wheels your vehicle from rolling.

to keep

4-64

that can occur on the road.

Here you’ll find what to do about some problems Hazard Warning Flashers ..................................................................................... 5-2 Other Warning Devices ......................................................................................... 5-3 Jump Starting ........................................................................................................ 5-3 Towing Your Vehicle, ............................................................................................. 5-7 Engine Overheating ............................................................................................... 5-8 Engine Fan Noise ............................................................................................... 5-1 6 If a Tire Goes Flat .............................................................................................. 5-16 Tire ....................................................................................... 5-16 Changing a Flat and Tire. .............................................................................. 5-30 Storing the Jack Sand, Mud, Ice or Snow ................................................... 5-31 If You’re Stuck: In

5-1

Pm6/ems on the R ~ a d

Hazard Warning Flashers

Your hazard warning flashers let you warn you have a problem. Your front and rear turn signal lights flash on But they won't flash if you are braking.

AN505005 others. They also let police know and off.

F 1

K2503

to make your front and rear

Press the button in and off. Your hazard warning flashers work no matter what position your key is in, and even

if the key isn't in.

turn signal lights flash on

on, your turn signals won't work.

To turn off the flashers, pull out on the collar. When the hazard warning flashers are Other Warning Devices If you carry reflective triangles, you can set one up at the side about 300 feet (100 m) behind your vehicle. Jump Starting If your battery has run jumper cables to start your vehicle. But please follow the steps below to safely. I CAUTION

down, you may want

to use another vehicle and some

do it

of the road

Batteries can hurt you. They can be dangerous because:

They contain add that can burn you.

e They contain gas that can explode or ignite. * They contain enough electricity to burn you. If YOU don't follow these steps exactly, some or all of these things "an hurt you.

in costly damage to your vet

* '

3 that

Ignoring these steps could result vouldn't be covered by your warra iying to start your vehicle by pushing !chicle, even if you have a manual transmission. And utomatic transmission, it won't start that wav.

1.

or pulling it could Y,.I.Jge yaur if vou have an

To Jump Start Your Vehicle 1. Check the other vehicle.

ground system.

It must have a 12-volt battery with a negative

NOTICE

m with a negative ground, both

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

5-3

ground connection you don’t want. You wouldn’t be able to start your vehicle, and the bad grounding

could damage the electrical systems.

CAUTION A You could be injured if the vehicles roll. Set

an automatic transmission in P (Park) or a

the parking brake firmly

on each vehicle. Put manual transmission in N (Neutral). If you have a four-wheel-drive vehicle, be sure the transfer not in N (Neutral).

case is

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!

I I jou leave a radio on,

be covered by your warranty.

it could be badly damaged. The repairs

woulc

4. Open the hoods and locate the batteries. Find the positive (t) and negative

(-)

terminals on each battery,

CAUTION A Using a match near a battery can cause battery gas

to explode.

b People have been hurt doing this, and some have been blinded. Use a flashlight if you need more light. Be sure the batteries have enough water. water to the Delco Freedom@ battery installed in every new vehicle. But if a battery has right amount of fluid is there. If it is low, add water to take care of that first. If you don’t, explosive gas could be present. Battery fluid contains acid that can bum you. Don’t get you accidentally get it in your eyes or on your skin, flush with water immediately. medical get help

You don’t need to add GM

filler caps, be sure the

it on you. If’ the place

and

5. Check that the jumper cables don’t have loose

or missing insulation. If they do, you could get a shock. too. know. Before you connect the cables, here are some things you should Positive (t) will go to positive (t) and negative (-) will go to negative

The vehicles could be damaged,

5-4

or a metal engine

(-) short that would damage

part. Don’t connect (t) to (-)

or you’ll get a

the battery and maybe other parts, too.

A Fans or other moving engine parts can injure you badly. Keep your

h hands away from moving parts once the engines are running.

6. Connect the red positive

(t) cable to the positive (t) terminal of the

vehicle with the dead battery. Use a remote positive vehicle has one.

(+) terminal if the

Dead Baffery

Good Battery

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

terminal of the good battery. Use a remote positive vehicle has one.

it to the positive (+)

(+) terminal if the

8. Now connect the black negative

(-)

cable to the good battery’s negative

terminal.

(-) Don’t let of the negative cable doesn’t go to the dead battery. unpainted metal part on the engine

the other end touch anything until the next step. The other end

of the vehicle with the dead battery.

It goes to a heavy

9. Attach the cable at least

18 inches (45 cm) away from

parts that move. The electrical connection is

of sparks getting back to the battery is much

the dead battery, just as

but not near engine good there, but the chance less.

5-5

Good Battery

Dead Battery

K2506

10. Now start the vehicle with the good battery and run the engine for

awhile.

11. Try to start the vehicle with the dead battery.

If it won’t start after a few tries, it probably needs service.

12. Remove the cables in reverse order to prevent electrical shorting.

Take

REMOVE CABLES IN THIS ORDER

5-6

Tiwing Your Vehicle Try to have a GM dealer or a professional towing service They can provide the right equipment and know how to tow damage. If your vehicle has been changed since like fog lamps, aero skirting, be damaged during towing. Before you do anything, turn on the hazard warning flashers. When you call,

tell the towing service:

it was factory-new, by adding things

or special tires and wheels, these things could

tow your vehicle.

it without

or that it has the four-wheel drive

That your vehicle has rear-wheel drive, option. The make, model, Whether you can move the shift lever for the transmission and transfer case, if you have one. If there was an accident, what was damaged.

and year of your

vehicle.

CAUTION

To help avoid injury to you or others: 9 Never let passengers ride in a vehicle that is being towed. e Never tow faster than safe or posted speeds. e Never tow with damaged parts not fully secured.

Never get under your vehicle after it has been lifted by the tow truck.

* Always use separate safety chains on each side when towing a

vehicle.

is being towed, have the ignition key

off. The steering in a straight-ahead position, with a clamping device

When your vehicle wheel should be clamped designed for towing service. Do not use the vehicle’s steering column lock for this. The transmission and transfer case, Neutral and the parking brake released. If you have a two-wheel drive vehicle, don’t have your vehicle towed on the If the vehicle must be towed on the rear rear wheels, unless you must. wheels, don’t go more than 35 mph (56 kmlh) or farther than 50 miles (80 km) or your transmission will be damaged. then the rear drive wheels have to be supported on a dolly.

If these limits must be exceeded,

if you have one, should be in

5-7

Pmbkms on the Road

If your vehicle has the four-wheel-drive option and the transfer case is engaged, a dolly must be used under the rear wheels when towing front. Engine Overheating You will find a coolant temperature gage on your vehicle instrument panel, If Steam Is Coming From Your Engine:

from the

I ‘i\ Steam from an overheated engine can bum you badly, even if you just open the hood. Stay away from the engine if you see or hear steam coming from it. Just turn it off and get everyone away from the vehide until it cools down. Wait until there is no sign of steam or coalant before opening the hood. If you keep driving when your engine is overheated, the liquids in it can catch fire. You or others could be badly burned. Stop your engine if it overheats, and get out of the vehicle until the engine is Cool.

by your warranty.

you keep driving with no coolant, your costly repairs would not be covered

5-8

If No Steam Is Coming From Your C gine: If you get the overheat warning but see or hear not be too serious. Sometimes the engine can get

no steam, the problem may

a little too hot when you:

hill on a hot day.

Climb a long Stop after high speed driving. in traffic. Idle for long periods Tow a trailer.

If you get the overheat warning with or so:

no sign of steam,

try this for a minute

1. If you have an air conditioner, 2. Turn on your heater

window as necessary.

turn it off.

to full hot at the highest fan speed and open the

3. If you’re in a traffic jam, shift

to N (Neutral).

to be safe,

ten minutes. If the warning doesn’t come back on, you

If you no longer have the overheat warning, you can drive. Just drive slower for about can drive normally. If the warning continues, pull over, stop, and park your vehicle right away. If there’s still no sign of steam, push the accelerator until the engine speed is about twice as fast as normal idle speed. Bring the engine speed back to normal idle speed after two or three minutes. Now see if the warning stops. if you still have the warning, TURN But then, EVERYONE OUT OF THE VEHICLE until You may decide not

OFF THE ENGINE AND GET

to get service help right

to lift the hood but

it cools down.

away.

5-9

Cooling System

.i

When you decide it's safe to lift the hood, here's what you'll see:

PO21 0

A. Coolant recovery tank B. Radiator pressure cap C. Engine fan CAUTION A An electric fan under the hood can start up even when

not running and can injure away from any underhood

you. Keep hands, clothing, and tools electric fan.

the engine is

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

5-1 0

COLD. If it isn’t, you may have a pump or somewhere

The coolant level should be at or above leak in the radiator hoses, heater hoses, radiator, water else in the cooling system. CAUTION A Heater and radiator hoses, and other engine parts, can be very hot.

do, you can be burned.

Don’t touch them. If you Don’t run the engine if there is a leak. If you run the engine, lose all coolant. That burned. Get any leak fixed before you drive the vehicle.

could cause an engine fire, and you

it coulc could be

1‘

to see if the electric engine fan

If there seems to be no leak, check have one) is running. If the engine is overheating, the fan should be running. If it isn’t, your vehicle needs service. Start the engine again If it doesn’t, your vehicle needs service. Turn How to Add Coolant to the Coolant Recovery Tank If you haven’t found a problem yet, but the coolant level isn’t at or above COLD, add a 50150 mixture of clean water

to see if the regular fan runs when the engine does.

off the engine.

(preferably distilled) and a proper

(if you

5-1 1

antifreeze at the coolant recovery tank. (See “Coolant” in the Index for more information about the proper coolant mix.)

Adding only plain water to your cooling system can be dangerous. Plain water, or some other liquid like alcohol, can boil before the proper coolant mix will. Your vehicle’s coolant warning system is set or the wrong mix, your for the proper coolant mix. With plain water engine could get too hot but you wouldn’t get the overheat warning. Your engine could catch fire and you or others could be burned. Use a 50150 mix of clean water and a proper antifreeze.

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

the recommended coolant.

I I

L.

k ’

1 ::.

- = -

PO206

CAUTION

You can be burned contains ethylene glycol and it will burn enough. Don’t spill coolant

on a hot engine.

if you spill coolant on hot engine parts. Coolant

if the engine parts are hot

When the coolant vehicle.

in the coolant recovery

is at or above COLD, start your

5-1 2

If the overheat warning continues, there's one can add the proper coolant mix directly to the radiator, but be sure the radiator is cool before you do it.

more thing you can try. You

I CAUTION - and burn you badly. They are under pressure, and

4 Steam and scalding liquids

from a hot cooling system

can blow out if you turn the radiator pressure capeven a little-they can come out at high speed. Never turn the cap when the cooling system, Including the radiator pressure cap, is hat. Wait for the cooling system and radiato pressure cap to cool if you ever have to turn the pressure cap.

How to Add Coolant to the Radiator

K2511

1. You can remove the radiator pressure cap when

the cooling system,

including the radiator pressure cap and upper radiator hose hot. Turn the pressure cap press down while turning the pressure cap.) If you hear a hiss, wait for that pressure left.

to stop. A hiss means there is

slowly to the left until it first stops. (Don't

is no longer

still some

5-1 3

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

Remove the pressure cap.

PO244 as you turn it.

K2341

3. Fill the radiator with the proper mix, up 4. Then fill the coolant recovery tank to 5. Put the cap back on the coolant recovery tank, but leave the radiator

COLD.

to the base of the filler neck.

pressure cap off.

5-1 4

K2550

6. Start the engine and let it run until you can feel the upper radiator hose

getting hot. Watch out for

the engine fan@).

7. By this time, the coolant level inside the radiator 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.

8. Then replace the pressure

line up like this.

cap. Be sure

the arrows on the pressure cap

K2515

5-1 5

and

So

be

will slow down when additional

is not engaged. This improves fuel economy

to provide more air to cool the engine. In most every day

Engine Fan Noise This vehicle has a clutched engine cooling fan. When the clutch is engaged, the fan spins faster driving conditions the clutch reduces fan noise. Under heavy vehicle loading, trailer towing and/or high outside temperatures, the fan speed increases when the clutch engages. you may hear an increase in fan noise. This is normal and should not mistaken as the transmission slipping or making extra shifts. It is merely the cooling system functioning properly. The fan cooling is not required and the clutch disengages. You may also hear this fan noise when you start the engine. It will go away as the fan clutch disengages. If a Tire Goes Fiat It’s unusual for a tire to “blow out” while you’re driving, especially If air goes out maintain your tires properly. leak out slowly. But if you should ever have about what to expect and what to do: If a front tire fails, the flat that side. Take your foot firmly. Steer the traffic lane. A rear blowout, particularly on a curve, acts much like require the same correction you’d use your foot from the accelerator pedal. Get the vehicle under control by steering the way you want you can still steer. Gently brake If your tire goes flat, the next part shows how to use your jacking equipment to change a flat tire safely. Changing a Flat Tire If a tire goes flat, avoid further level place. Turn on your hazard warning flashers.

the vehicle to go. It may be very bumpy and noisy, but to a stop, well off the road if possible.

tire will create a drag that pulls the vehicle toward off the accelerator pedal and grip the steering wheel to a stop well out

of a tire, it’s much more likely a “blowout,” here are a few tips

to maintain lane position, then gently brake

tire and wheel damage by driving slowly

in a skid. In any rear blowout, remove

a skid and may

if you

to

of

to a

5-1 6

Changing a tire can cause an injury. The vehicle can slip

- and roll over you or other people.

You and they could be badly

off the jack

to change your tire.

To help prevent the

injured. Find a level place vehicle from moving:

1. Set the parking brake firmly. 2. Put the shift lever in 3. Shift a manual transmission to 1 (First) or R (Reverse). 4. If you have a four-wheel-drive vehicle, be sure the transfer case

P (Park).

is in a drive gear-not

in N (Neutral).

5. Turn off the engine.

To be even more certain the vehicle won't move, you at the front and rear of the tire farthest away from the one being changed. That would be the tire on the other side of the vehicle, at the opposite end.

can put chocks

The following steps will tell you how

to use the jack and change a tire.

5-1 7

if you have one. Turn the

off the bolt. Take the tire out of the vehicle and

K2122 wing nut counterclockwise

First open the tire cover, and take it, and the adapter, remove the tire cover. Jack and Tools

.-

If your wagon model has a jack cover, then take

it off.

lift the tab up to release the cover,

PO287

If your utility model has a jack cover, turn the wing nut counterclockwise take it off, then take the cover off.

K2135 to

. . . " .

K214 it and the To take the jack out, turn the wing nut counterclockwise and take retainer off. Take the jack and storage box out and take the tools out of the box. Your vehicle may have a pair can use them when changing Remember to replace them with the jack, needed later.

of emergency gloves secured the tire, or during other emergency situations. if

so you will have them handy

to the jack. You

5-1 9

manging the Tire

Start with the jack, the jack handle and the ratchet. rear of the vehicle, you'll need the jack handle extensions also.

If the flat tire is

K2519

on the

The ratchet has an

UP and a DOWN marking.

K2535

5-20

-

K2521

Attach the jack handle (and jack handle extensions, With the UP marking on the ratchet facing That will lift the jack head a little. Before raising the vehicle, things. Put your spare tire near the flat tire. Remove the wheel trim.

if needed) to the jack. you, rotate the ratchet clockwise.

do the following

If there is a wheel cover, remove along the edge of the wheel cover until edges may be sharp. Don't try

it by using the

flat end of the socket. Pry

it comes off. Be careful; the rim

to remove it with your bare hands.

K2367

5-21

If your vehicle has wheel nut caps, remove them using the ratchet and socket. Use the ratchet with Then take the hub cap If the wheel has

DOWN facing you to unscrew and take them

it by using the flat end

a trim ring, remove

off.

of the socket.

K2369

off.

K2368

If the wheel has a smooth center piece or remove it using the flat the slot on the wheel and pry out gently.

end of the socket. Place the flat end of the socket

in

a center piece with recessed nuts,

5-22

Using the socket and ratchet, with DOWN facing nuts. Don’t remove them yet.

you, loosen all the wheel

PO205

JACK LOCATIONS/ALL MODELS

K2120

CAUTION I A Getting under a vehicle when

vehicle slips off the jack, you could be badly injured or killed. Never get under

it is supported only by a jack.

a vehicle when

it is jacked up is dangerous. If the

5-23

NOTICE - 'sing your vehicle with the jack improperly positioned dehicle or may allow the vehicle to fall off the jack. Be sure to fit the jack ift head into the proper location before raising your vehicle.

will damage the

Front

-r-

Rear

'1

Raise the vehicle by rotating the ratchet clockwise. Make sure the marking faces you. Use the jack handle extensions if the flat tire is on the rear of the vehicle. Raise the vehicle far enough enough room for the spare tire

to fit.

off the ground so there is

PO288

UP

qemove all the wheel nuts

and take off the flat tire.

K2527

K2529

5-25

1 CAUTION

* Rust or dirt on the wheel, or on the parts to which it is fastened, h can make the wheel nuts become loose after a time. The wheel could corne off and cause an accident. When you change a wheel, remove any rust or dirt fmm the places where the wheel attaches to the vehicle. In an emergency, you can use a cloth or a paper towel to do this; but be sure to use a scraper ~r wire brush later, if you need to, to get all the rust or dirt off.

’

Remove any rust or wheel. Place the spare on the wheel mounting CAUTION

dirt from the wheel bolts, mounting surfaces or spare

surface.

Never use oil or grease on studs come loose. Your wheel could

or nuts. If you do, the nuts might

fall off, causing a serious accident.

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

end of the nuts toward the wheel.

K2127

5-26

front

Rear

Tighten the nuts firmly clockwise with the UP marking facing you.

in a criss-cross sequence as shown. Rotate the ratchet

5-27

I

CAUTION

to become loose and even come off. This could lead to If you have

Incorrect wheel nuts or improperly tightened wheel nuts can cause the wheel an accident. Be sure replace them, be sure to get the right Stop somewhere as soon as you can and have the nuts tightened with a torque wrench

to use the correct wheel nuts.

to the promr toraue.

kind.

to

For proper torque, see “Wheel Nut Torque” in the Index. Put the wheel trim back on. For vehicles with plastic nut caps, tighten the caps until they are finger tight, then tighten them an additional one-half turn with the ratchet. Remove any wheel blocks.

Storing a jack, a tire or other equipment in the passenger compartment of the vehicle could cause injury. collision, loose equipment could strike someone. Store all these the proper place.

In a sudden stop or in

5-28

(ALL MODELS)

JACK STORAGE (UTILITY MODEL)

NUT

BOX

5-29

K2121

Problems on the Road

box into box. Be sure

it tightly, Fit the storage

if your vehicle has them,

bolt through the box. Put the jack onto the

Storing the Jack and Tire Storhg the Jack Put the tools into the storage box and close the bracket with the the jack points in the right direction as shown for your model. Secure the emergency gloves, strap. Slide the retainer over the bolt onto the jack and put the wing nut the nut clockwise until Replace the jack storage cover, the removal procedure described earlier. Storing the Tire Be sure the J-bolt is hooked properly for your model or tire size as shown.

if your vehicle has one, by simply reversing

to the jack using the provided

it is tight against the retainer.

on. Turn

ADAPTER

I - BOLT

J - BOLT

,ADAPTER

If you have a wagon model, use these locations.

NOTE: Use lower hole for 8 lug rim only.

PO21 3

5-30

K2143

if your vehicle has one.

the vehicle, over the bolt. Slide the adapter onto

If you have a utility model, use these locations. Put the cover back on the tire Put the tire into the proper location for your model, and put the wing nut on. Turn the wing nut clockwise until the adapter is tight against the wheel, then close the cover. If You’re Stuck: In Sand, Mud, Ice or Snow What you don’t want to do when your vehicle wheels. The method known as “rocking” can help you get out when you’re stuck, but you must use caution.

is stuck is to spin your

the bolt in

I-,

If you let your tires spin at high speed, they can explode and you or others could be injured. And, the transmission or other parts vehicle can overheat. That could cause an engine compartment fire or other damage. When you’re stuck, spin the wheels as little as possible. Don’t spin the wheels above on the speedometer.

35 mph (55 kmlh) as shown

of the

5-31

Pmb/ems on the Road

Spinning your wheels can destroy

parts of your vehicle as well as the

Rocking your vehicle to get it out: left and right. That will clear the area around First, turn your steering wheel back and forth between R and a forward gear your front wheels. Then shift (or with a manual transmission, between First or Second gear and Reverse), 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 towed out. Or, you can use your recovery hooks, you do need to be towed out, see “Towing Your Vehicle” Using the Recovery Hooks

out after a few tries, you may need to be

if your vehicle has them. If

in the Index.

K2456

in sand, mud, ice

or snow, your vehicle may be If you ever get stuck equipped with recovery hooks. The recovery hooks are provided at the front of your vehicle. You may need to use them to be pulled to some place where you

can continue driving.

if you’re stuck off-road and need

5-32

The recovery hooks, when used, are under the vehicle straight out. Never angle. The hooks could break from the chain or cable snapping back.

pull on the hooks at a sideways off and you or others could be

a lot of force. Always pull

i * Irec'

I NOTICE

I Never use the recovery

damaged and it would not be covered by warranty.

hooks to tow the vehicle. Your vehicle could be

K2457

5-33

Service & Appearance Care

find information about the care

its appearance care .

of your vehicle . This section Here you will how to check begins with service and fuel information. and then it shows important fluid and lubricant levels . There is also technical information about your vehicle. and a section devoted to Service ................................................................................................................... 6-3 Fuel ........................................................................................................................ 6-4 ....................................................................... 6-8 Checking Things Under the Hood Hood Release .................................................................................................... 6-8 Engine Oil .......................................................................................................... 6-9 Air Cleaner ....................................................................................................... 6-16 Automatic Transmission Fluid ......................................................................... 6-17 Manual Transmission Fluid ............................................................................. 6-20 Hydraulic Clutch ............................................................................................... 6-21 Transfer Case .................................................................................................. 6-23 Front Axle ......................................................................................................... 6-24 Rear Axle ......................................................................................................... 6-24 Engine Coolant ................................................................................................ 6-25 Power Steering Fluid ....................................................................................... 6-29 Windshield Washer Fluid ................................................................................. 6-31 Brake Master Cylinder ..................................................................................... 6-32

6-1

Service & Appearance Care

...................................................................................

Replacing Brake System Parts .......................................................................... 6-33 Other Maintenance Items ................................................................................... 6-34 Lubrication ............................................................................................................ 6-35 Electrical System ................................................................................................. 6-37 Battery .............................................................................................................. 6-37 Bulb Replacement ............................................................................................ 6-37 Fuses and Circuit Breakers ............................................................................ 6-43 Exhaust System ................................................................................................... 6-45 Loading Your Vehicle .......................................................................................... 6-46 Tires ...................................................................................................................... 6-48 6-49 Inflation-Tire Pressure Tire Inspection and Rotation .......................................................................... 6-52 ........................................................................ 6-53 When It’s Time for New Tires Buying New Tires ............................................................................................ 6-53 Uniform Tire Quality Grading .......................................................................... 6-54 ............................................................... 6-55 Wheel Alignment and Tire Balance Wheel Replacement ......................................................................................... 6-55 Tire Chains ....................................................................................................... 6-56 Appearance Care ................................................................................................ 6-57 ............................................................. 6-58 Cleaning the Inside Of Your Vehicle Cleaning the Outside Of Your Vehicle .......................................................... 6-61 Appearance Care Materials ................................................................................ 6-64 Vehicle Identification Number ............................................................................. 6-65 Service Parts Identification Label 6-67 Specification Charts ............................................................................................. 6-68

......................................................................

6-2

Service Your General Motors dealer knows your vehicle best and wants you to be happy with it. We hope 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 have one of these marks:

you’ll go to your dealer for all your service needs.

parts

you’ll want to get the

to do some of your own service work,

Doing Your Own Service Work If you want proper General Motors Service Manual. It tells you much more about how to service your vehicle than this manual can. manual, see “Service Publications” 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. CAUTION I A You can be injured if you try to do service work on a vehicle without

To order the proper service

in the Index.

L knowing enough about it.

Be sure you have sufficient knowledge, experience, and the proper replacement parts and tools before you attempt any vehicle maintenance task.

9 Be sure to use the proper nuts, bolts and other fasteners.

“English” and “metric” fasteners can use the wrong fasteners, parts can later break or could be hurt.

be easily confused.

If you fall off. You

6-3

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

Maintenance Schedule Section 7 of this manual, “Scheduled Maintenance Services”, explains the maintenance your new vehicle needs, and when has a form that you can use vehicle. Be sure Fuel

it should be done. It also to record the maintenance work done on your

to read this information.

K228

87 octane or higher.

so you should not have

It should meet Use regular unleaded gasoline rated at specifications ASTM D4814 in the U.S. and CGSB 3.5-92 in Canada. These fuels should have the proper additives, anything to the fuel. In the US. and Canada, gasoline (unleaded). You’ll see UNLEADED right on the pump. And only unleaded nozzles will Be sure the posted octane is at least may get a heavy knocking noise when you drive. damage your engine.

it’s easy to be sure you get the right kind

fit into your vehicle’s filler neck.

is less than 87, you it can

87. If the octane

If it’s bad enough,

to add

of

6-4

still hear heavy if you hear a little

or driving up a hill. That’s normal and

a higher octane fuel to get rid of pinging. It’s the

at 87 octane or higher and you

If you’re using fuel rated knocking, your engine needs service. But don’t worry pinging noise when you’re accelerating you don’t have to buy heavy, constant knock that means you have What about gasoline with blending materials that contain oxygen, such as MTBE or alcohol? MTBE is “methyl tertiary-butyl ether.” Fuel that is no more than fine for your vehicle. Ethanol is ethyl or grain alcohol. Properly-blended fuel that is 10% ethanol is fine for your vehicle. Methanol is methyl or wood alcohol,

a problem.

15% MTBE is

no more than

NOTICE Fuel that is more than 5% methanol is bad for your vehicfe. Don’t use ‘A It can corrode metal parts in your fuel system and also damage plastic and rubber parts. That damage wouldn’t be covered under your warri ’y. And even at 5% or less, there must be “cosolvents” and corrosion

eventers in this fuel to help avoid these problems.

By doing so, you can help clean the in those parts of the country that have higher carbon monoxide

Gasolines for Cleaner Air Your use of gasoline with detergent 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 materials that called oxygenates. General Motors recommends that you use gasolines with these blending materials, such as MTBE and ethanol. air, especially levels. In addition, some gasoline suppliers are now producing reformulated to reduce vehicle gasolines. These gasolines are specially designed emissions. General Motors recommends that you use reformulated gasoline. By doing so, you can help clean the air, especially country that have high You should ask your service station operators if their gasolines contain detergents and oxygenates, and vehicle emissions.

if they have been reformulated to reduce

ozone levels.

in those parts of the