2005 Jeep Grand Cherokee Owners Manual

EMISSIONS INSPECTION AND MAINTENANCE PROGRAMS In some localities, it may be a legal requirement to pass an inspection of your vehicle’s emissions control system. Failure to pass could prevent vehicle registration.

For states which have an I/M (Inspection and Maintenance) requirement, this check verifies the following: the MIL (Malfunction Indicator Lamp)

is functioning and is not on when the engine is running, and that the OBD (On Board Diagnostic) system is ready for testing. Normally, the OBD system will be ready. The OBD system may not be ready if your vehicle was recently serviced, if you recently had a dead battery, or a battery replacement. If the OBD system should be determined not ready for the I/M test, your vehicle may fail the test. Your vehicle has a simple ignition key actuated test which you can use prior to going to the test station. To check if your vehicle’s OBD system is ready, you must do the following: 1. Insert your ignition key into the ignition switch. 2. Turn the ignition to the ON position, but do not crank or start the engine. 3. If you crank or start the engine, you will have to start this test over.

4. As soon as you turn your key to the ON position, you will see your MIL symbol come on as part of a normal bulb check. 5. Approximately 15 seconds later, one of two things will happen:

a. The MIL will flash for about 10 seconds and then return to being fully illuminated until you turn off the ignition key or start the engine. This means that your vehicle’s OBD system is not ready and you should not proceed to the I/M station. b. The MIL will not flash at all and will remain fully illuminated until you turn off the ignition key or start the engine. This means that your vehicle’s OBD system is ready and you can proceed to the I/M station.

If your OBD system is not ready, you should see your authorized dealer or repair facility. If your vehicle was recently serviced or had a battery failure or replacement,

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you may need to do nothing more than drive your vehicle as you normally would in order for your OBD system to update. A recheck with the above test routine may then indicate that the system is now ready. Regardless of whether your vehicle’s OBD system is ready or not ready, if the MIL symbol is illuminated during normal vehicle operation, you should have your vehicle serviced before going to the I/M station. The I/M station can fail your vehicle because the MIL symbol is on with the engine running.

REPLACEMENT PARTS Use of genuine Mopar威 parts for normal/scheduled maintenance and repairs is highly recommended to in- sure the designed performance. Damage or failures caused by the use of non-Mopar威 parts for maintenance and repairs will not be covered by the manufacturer’s warranty.

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DEALER SERVICE Your dealer has the qualified service personnel, special tools and equipment to perform all service operations in an expert manner. Service Manuals are available which include detailed service information for your vehicle. Refer to these manuals before attempting any procedure yourself. NOTE: systems can result against you.

Intentional tampering with emissions control in civil penalties being assessed

WARNING!

You can be badly injured working on or around a motor vehicle. Do only that service work for which you have the knowledge and the proper equipment. If you have any doubt about your ability to perform a service job, take your vehicle to a competent mechanic.

MAINTENANCE PROCEDURES The pages that follow contain the required maintenance services determined by the engineers who designed your vehicle. Besides the maintenance items for which there are fixed maintenance intervals, there are other items that should operate satisfactorily without periodic maintenance. However, if a malfunction of these items does occur, it could adversely affect the engine or vehicle performance. These items should be inspected if a malfunction is observed or suspected. Engine Oil

Checking Oil Level To assure proper engine lubrication, the engine oil must be maintained at the correct level. Check the oil level at regular intervals, such as every fuel stop.

The best time to check the engine oil level is about 5
minutes after a fully warmed engine is shut off or before starting the engine after it has sat overnight. Checking the oil while the vehicle is on level ground will improve the accuracy of the oil level readings. Maintain the oil level in the SAFE level range. Adding 1 U.S. Quart (0.95L) of oil when the level is at the bottom of the SAFE range will result in the level being at the top of the SAFE range.

CAUTION!

Overfilling or underfilling the crankcase will cause aeration or loss of oil pressure. This could damage your engine.

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Change Engine Oil Road conditions as well as your kind of driving affect the interval at which your oil should be changed. Check the following to determine if any apply to you: • Day or night temperatures are below 32°F (0°C) • Stop and go driving • Extensive engine idling • Driving in dusty conditions • Short trips of less than 10 miles (16.2 km) • More than 50% of your driving is at sustained high • Trailer towing • Taxi, Police, or delivery service (Commercial Service) • Off road or desert operation • If equipped for and operating with E-85 (ethanol) fuel

speeds during hot weather, above 90°F (32°C)

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If ANY of these apply to you, then change your engine oil every 3,000 miles (5 000 km) or 3 months, whichever comes first, and follow the maintenance recommenda- tions in “Maintenance Schedule B.” If none of these apply to you, then change your engine oil every 6,000 miles (10 000 km) or 6 months, whichever comes first. NOTE: Under no circumstances should oil change in- tervals exceed 6,000 miles (10 000 km) or 6 months whichever comes first. Engine Oil Selection For best performance and maximum protection for all engines under all types of operating conditions, the manufacturer recommends engine oils that are API Cer- tified and meet the requirements of DaimlerChrysler Material Standard MS-6395. Use Mopar威 or an equiva- lent oil meeting the specification MS-6395.

Oil Filler Caps

American Petroleum Institute (API) Engine Oil Identification Symbol

This symbol means that the oil has been certified by the American Petroleum Institute (API). The manufacturer only recommends API Certified engine oils that meet of DaimlerChrysler Material Stan- dard MS-6395. Use Mopar威 or an equivalent oil meeting the specifi-

requirements

the

cation MS-6395. Engine Oil Viscosity (3.7L and 4.7L Engines) SAE 5W-30 engine oil is recommended for all operating temperatures. This engine oil improves low tempera- ture starting and vehicle fuel economy. Refer to your engine oil filler cap for the recommended engine oil viscosity for your vehicle.

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Engine Oil Viscosity (5.7L Engines) SAE 5W-20 engine oil is recommended for all operating temperatures. This engine oil improves low tempera- ture starting and vehicle fuel economy. Refer to your engine oil filler cap for the recommended engine oil viscosity for your vehicle. For information on engine oil filler cap location, see the Engine Compartment illustration in this section. Lubricants which do not have both, the engine oil certi- fication mark and the correct SAE viscosity grade num- ber should not be used. NOTE: Vehicles equipped with 5.7L engines must use 5W–20 oil. Failure to do so may result in improper operation of the Multiple Displacement System (MDS). Refer to “Multi Displacement System” in Section 5 of this manual.

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Materials Added to Engine Oils The manufacturer strongly recommends against the ad- dition of any additives (other than leak detection dyes) to engine oil. Engine oil is an engineered product and it’s performance may be impaired by supplemental addi- tives. Disposing of Used Engine Oil Care should be taken in disposing of the used engine oil from your vehicle. Used oil, indiscriminately discarded, can present a problem to the environment. Contact your local authorized dealer, service station, or governmental agency for advice on how and where used oil can be safely discarded in your area. Engine Oil Filter The engine oil filter should be replaced with a new filter at every oil change.

Engine Oil Filter Selection All of the manufacturer’s engines have a full-flow type disposable oil filter. Use a filter of this type for replace- ment. The quality of replacement filters varies consider- ably. Only high quality filters should be used to assure most efficient service. Mopar威 engine oil filters are high quality oil filters and are recommended. Drive Belts - Check Condition and Tension At the mileages shown in the appropriate “Maintenance Schedule,” check all drive belts for condition and proper tension. Improper belt tension can cause belt slippage and failure. Inspect the drive belt for evidence of cuts, cracks, or glazing and replace them if there is any sign of damage which could result in belt failure. If adjustment is re- quired, adjust the belts according to the specifications and procedures shown in the Service Manual.

Special tools are required to properly measure tension and to restore belt tension to factory specifications. Also, check belt routing to make sure there is no interference between the belts and other engine components. Spark Plugs Spark plugs must fire properly to assure engine perfor- mance and emission control. New spark plugs should be installed at the specified mileage. The entire set should be replaced if there is any malfunction due to a faulty spark plug. Refer to the “Vehicle Emission Control Informa- tion” label in the engine compartment for spark plug information. Catalytic Converter The catalytic converter requires the use of unleaded fuel only. Leaded gasoline will destroy the effectiveness of the converter as an emission control device.

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Under normal operating conditions, the catalytic con- verter will not require maintenance. However, it is im- portant to keep the engine properly tuned to assure proper catalyst operation and prevent possible catalyst damage.

CAUTION!

Damage to the catalytic converter can result if your vehicle is not kept in proper operating condition. In the event of engine malfunction, particularly involv- ing engine misfire or other apparent loss of perfor- mance, have your vehicle serviced promptly. Contin- ued operation of your vehicle with a severe malfunction could cause the converter to overheat, resulting in possible damage to the converter and vehicle.

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WARNING!

A hot exhaust system can start a fire if you park over materials that can burn. Such materials might be grass or leaves coming into contact with your ex- haust system. Do not park or operate your vehicle in areas where your exhaust system can contact any- thing that can burn.

In unusual situations involving grossly malfunctioning engine operation, a scorching odor may suggest severe and abnormal catalyst overheating. If this occurs, stop the vehicle, turn off the engine and allow it to cool. Service, including a tune up to manufacturer’s specifica- tions, should be obtained immediately. To minimize the possibility of catalytic converter dam- age:

vehicle.

• Do not shut off the engine or interrupt the ignition when the transmission is in gear and the vehicle is in motion. • Do not try to start the engine by pushing or towing the • Do not idle the engine with any spark plug wires disconnected or removed, such as when diagnostic testing. • Do not idle the engine for prolonged periods during very rough idle or malfunctioning operating condi- tions.

• Do not allow vehicle to run out of fuel. NOTE: systems can result against you.

Intentional tampering with emissions control in civil penalties being assessed

Ignition Cables Replace the ignition cables (5.7L engines only) at the mileage interval shown in the maintenance charts. Crankcase Emission Control System Proper operation of this system depends on freedom from sticking or plugging due to deposits. As vehicle mileage builds up, the PCV valve and passages may accumulate deposits. If a valve is not working properly, replace it with a new valve. DO NOT ATTEMPT TO CLEAN THE OLD PCV VALVE! Check ventilation hose for indication of damage or plugging deposits. Replace if necessary. Fuel Filter A plugged fuel filter can cause hard starting or limit the speed at which a vehicle can be driven. Should an excessive amount of dirt accumulate in the fuel tank, frequent replacement of the fuel filter which is mounted in the fuel tank may be necessary.

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Air Cleaner Filter Under normal driving conditions, replace the air filter at the intervals shown on “Maintenance Schedule A.” If, however, you drive the vehicle frequently under dusty or severe conditions, the filter element should be inspected periodically and replaced if necessary at the intervals shown on “Maintenance Schedule B.”

WARNING!

The air cleaner can provide protection in the case of engine backfire. Do not remove the air cleaner unless it is necessary for repair or maintenance. Make sure that no one is near the engine compart- ment before starting the vehicle with the air cleaner removed. Failure to do so can result in serious personal injury.

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Maintenance-Free Battery Your vehicle is equipped with a maintenance-free battery. You will never have to add water, nor is periodic main- tenance required.

WARNING!

Battery posts, terminals, and related accessories con- tain lead and lead compounds. Always wash hands after handling the battery.

To determine the battery charge, check the battery test indicator (if equipped) on top of the battery. Refer to the illustration.

CAUTION!

It is essential when replacing the cables on the battery that the positive cable is attached to the positive post and the negative cable is attached to the negative post. Battery posts are marked (+) positive and negative (-) and identified on the battery case. Also, if a “fast charger” is used while battery is in the vehicle, disconnect both vehicle battery cables be- fore connecting the charger to battery. Do not use a “fast charger” to provide starting voltage.

Air Conditioner Maintenance For best possible performance, your air conditioner should be checked and serviced by an Authorized Dealer at the start of each warm season. This service should include cleaning of the condenser fins and a performance test. Drive belt tension should also be checked at this time.

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WARNING!

• Use only refrigerants and compressor lubricants approved by the manufacturer for your air condi- tioning system. Some unapproved refrigerants are flammable and can explode, injuring you. Other unapproved refrigerants or lubricants can cause the system to fail, requiring costly repairs. Refer to Section 3 of the Warranty Information Book for additional warranty information. • The air conditioning system contains refrigerant under high pressure. To avoid risk of personal injury or damage to the system, adding refrigerant or any repair requiring lines to be disconnected should be done by an experienced repairman.

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Refrigerant Recovery and Recycling R-134a Air Conditioning Refrigerant is a hydrofluorocar- bon (HFC) that is endorsed by the Environmental Pro- tection Agency and is an ozone-saving product. How- ever, the manufacturer recommends that air conditioning service be performed by dealers or other service facilities using recovery and recycling equipment. Power Steering Fluid Check Your new Grand Cherokee requires the use of a new Power Steering Fluid. This new fluid is specially formu- lated to ensure the long life of the power steering system. The power steering system requires the use of Mopar威 (P/N Hydraulic 05142893AA), which meets DaimlerChrysler Material Standard MS-10838.

System Power

equivalent,

Steering

Fluid

or

CAUTION!

Do not use Automatic Transmission Fluid (ATF) or other types of power steering fluids when servicing the power steering system of this vehicle. Damage to the power steering system can result from the use of the wrong power steering fluid.

Checking the power steering fluid level at a defined service interval is not required. The fluid should only be checked if a leak is suspected, abnormal noises are apparent, and/or the system is not functioning as antici- pated. Coordinate inspection efforts through a certified “DaimlerChrysler Dealership.”

WARNING!

Fluid level should be checked on a level surface with the engine off to prevent injury from moving parts, and to insure accurate fluid level reading. Do not overfill. Use only the manufacturer’s recommended fluid.

If necessary, add fluid to restore to the proper indicated level. With a clean cloth, wipe any spilled fluid from all surfaces. Refer to Recommended Fluids, Lubricants, and Genuine Parts for correct fluid type. Body Lubrication Locks and all body pivot points, including such items as seat tracks, doors, tailgate and hood hinges, should be lubricated periodically to assure quiet, easy operation and to protect against rust and wear. Prior to the appli- cation of any lubricant, the parts concerned should be

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wiped clean to remove dust and grit; after lubricating excess oil and grease should be removed. Particular attention should also be given to hood latching compo- nents to insure proper function. When performing other underhood services, the hood latch, release mechanism and safety catch should be cleaned and lubricated. The external lock cylinders should be lubricated twice a year, preferably in the fall and spring. Apply a small amount of a high quality lubricant such as Mopar威 Lock Cylinder Lubricant directly into the lock cylinder. Windshield Wiper Blades The rubber edges of the wiper blades and the windshield should be cleaned periodically with a sponge or soft cloth and a mild nonabrasive cleaner to remove accumulations of salt or road film.

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Operation of the wipers on dry glass for long periods may cause deterioration of the wiper blades. Always use washer fluid when using the wipers to remove salt or dirt from a dry windshield. Avoid using the wiper blades to wipe frost or ice from the windshield. Keep the blade rubber out of contact with petroleum products such as engine oil, gasoline, etc. Windshield Washers — Front and Rear On vehicles equipped with a Vehicle Information Center, the low washer fluid level will be indicated. When the sensor detects a low fluid level, the windshield will light on the vehicle graphic outline and the “Washer Fluid Low” message will be displayed. The fluid reservoir for the windshield washers and the rear window washer is shared. It is located in the front of the engine compartment on the passenger side and should be checked for fluid level at regular intervals. Fill

the reservoir with windshield washer solvent (not antifreeze/coolant) and operate the system for a few seconds to flush out the residual water.

WARNING!

Commercially available windshield washer solvents are flammable. They could ignite and burn you. Care must be exercised when filling or working around the washer solution.

Exhaust System The best protection against carbon monoxide entry into the vehicle body is a properly maintained engine exhaust system. If you notice a change in the sound of the exhaust system; or if the exhaust fumes can be detected inside the vehicle; or when the underside or rear of the vehicle is damaged;

have an authorized technician inspect the complete ex- haust system and adjacent body areas for broken, dam- aged, deteriorated, or mispositioned parts. Open seams or loose connections could permit exhaust fumes to seep into the passenger compartment. In addition, inspect the exhaust system each time the vehicle is raised for lubri- cation or oil change. Replace as required. Cooling System

WARNING!

You or others can be badly burned by hot antifreeze/ coolant or steam from your radiator. If you see or hear steam coming from under the hood, don’t open the hood until the radiator has had time to cool. Never try to open a cooling system pressure cap when the radiator or coolant bottle is hot.

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Engine Coolant Checks Check antifreeze/coolant protection every 12 months (before the onset of freezing weather, where applicable). If antifreeze/coolant is dirty or rusty in appearance, the system should be drained, flushed and refilled with fresh antifreeze/coolant. Check the front of the A/C condenser for any accumulation of bugs, leaves, etc. If dirty, clean by gently spraying water from a garden hose vertically down the face of the condenser. Check the engine cooling system hoses for brittle rubber, cracking, tears, cuts, and tightness of the connection at the coolant recovery bottle and radiator. Inspect the entire system for leaks. With the engine at normal operating temperature (but not running), check the cooling system pressure cap for proper vacuum sealing by draining a small amount of coolant from the radiator drain cock. If the cap is sealing properly, the antifreeze/coolant will begin to drain from

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the coolant recovery bottle. DO NOT REMOVE THE COOLANT PRESSURE CAP WHEN THE COOLING SYSTEM IS HOT. Cooling System — Drain, Flush, And Refill At the intervals shown in the appropriate “Maintenance Schedule,” the system should be drained, flushed, and refilled. If the solution is dirty and contains a considerable amount of sediment, clean and flush with reliable cooling system cleaner. Follow with a thorough rinsing to remove all deposits and chemicals. Properly dispose of old antifreeze/coolant solution. Selection Of Engine Coolant Use only the manufacturer’s recommended antifreeze/ coolant, refer to Recommended Fluids, Lubricants, and Genuine Parts for correct antifreeze/coolant type.

CAUTION!

Mixing of antifreeze/coolant other than the specified HOAT antifreeze/coolant may result in decreased corrosion protection and engine damage. If a non- HOAT antifreeze/coolant is introduced into the cool- ing system in an emergency, it should be replaced with the specified antifreeze/coolant as soon as pos- sible. Do not use plain water alone or alcohol base antifreeze/coolant products. Do not use additional rust inhibitors or antirust products, as they may not be compatible with the antifreeze/coolant and may plug the radiator. This vehicle has not been designed for use with Propylene Glycol based antifreeze/coolant. Use of Propylene Glycol base antifreeze/coolant is not rec- ommended.

Adding Engine Coolant Your vehicle has been built with an improved antifreeze/ coolant that allows extended maintenance intervals. This antifreeze/coolant can be used up to 5 Years or 100,000
miles before replacement. To prevent reducing this ex- tended maintenance period, it is important that you use the same antifreeze/coolant throughout the life of your vehicle. Please review these recommendations for using Hybrid Organic Additive (HOAT) antifreeze/coolant. When adding antifreeze/coolant, a minimum solution of 50% recommended Mopar Antifreeze/ Coolant 5 Year/ 100,000 Mile Formula HOAT (Hybrid Organic Additive Technology), or equivalent, in water should be used. Use higher concentrations (not to exceed 70%) if temperatures below -34°F (-37°C) are anticipated.

Technology

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Use only high purity water such as distilled or deionized water when mixing the water/antifreeze (coolant) solu- tion. The use of lower quality water will reduce the amount of corrosion protection in the engine cooling system. Please note that it is the owner’s responsibility to main- tain the proper level of protection against freezing ac- cording to the temperatures occurring in the area where the vehicle is operated. NOTE: Mixing antifreeze/coolant types will decrease the life of the antifreeze/coolant and will require more frequent antifreeze/coolant changes. Cooling System Pressure Cap The cap must be fully tightened to prevent loss of antifreeze/coolant, and to insure that antifreeze/coolant will return to the radiator from the coolant recovery tank.

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The cap should be inspected and cleaned if there is any accumulation of foreign material on the sealing surfaces.

WARNING!

The warning words DO NOT OPEN HOT on the cooling system pressure cap are a safety precaution. Never add antifreeze/coolant when the engine is overheated. Do not loosen or remove the cap to cool an overheated engine. Heat causes pressure to build up in the cooling system. To prevent scalding or injury, do not remove the pressure cap while the system is hot or under pressure.

Disposal of Used Engine Coolant Used ethylene glycol-based antifreeze/coolant is a regu- lated substance requiring proper disposal. Check with your local authorities to determine the disposal rules for your community. To prevent ingestion by animals and

children, do not store ethylene glycol-based antifreeze/ coolant in open containers or allow it to remain in puddles on the ground. If ingested by a child, contact a physician immediately. Clean up any ground spills im- mediately. Engine Coolant Level The coolant bottle provides a quick visual method for determining that the antifreeze/coolant level is adequate. With the engine idling, and warm to normal operating temperature, the level of the antifreeze/coolant in the bottle should be between the ranges indicated on the bottle. The radiator normally remains completely full, so there is not need to remove the radiator cap unless checking for antifreeze/coolant freeze point or replacing antifreeze/ coolant. Advise your service attendant of this. As long as the engine operating temperature is satisfactory, the coolant bottle need only be checked once a month.

When additional antifreeze/coolant is needed to main- tain the proper level, it should be added to the coolant bottle. Do not overfill. Points To Remember NOTE: When the vehicle is stopped after a few miles (kilometers) of operation, you may observe vapor coming from the front of the engine compartment. This is nor- mally a result of moisture from rain, snow, or high humidity accumulating on the radiator and being vapor- ized when the thermostat opens, allowing hot antifreeze/ coolant to enter the radiator. If an examination of your engine compartment shows no evidence of radiator or hose leaks, the vehicle may be safely driven. The vapor will soon dissipate. • Do not overfill the coolant recovery bottle. • Check antifreeze/coolant freeze point in the radiator and in the coolant recovery bottle. If antifreeze/

MAINTAINING YOUR VEHICLE 333

coolant needs to be added, contents of coolant recov- ery bottle must also be protected against freezing. • If frequent antifreeze/coolant additions are required, or if the level in the coolant recovery bottle does not drop when the engine cools, the cooling system should be pressure tested for leaks. • Maintain antifreeze/coolant concentration at 50% HOAT antifreeze/coolant (minimum) and distilled water for proper corrosion protection of your engine which contains aluminum components. • Make sure that the radiator and coolant recovery • Keep the front of the radiator clean. If your vehicle is equipped with air conditioning, keep the front of the condenser clean, also. • Do not change the thermostat for summer or winter install

operation. If replacement is ever necessary,

bottle hoses are not kinked or obstructed.

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ONLY the correct type thermostat. Other designs may result in unsatisfactory cooling performance, poor gas mileage, and increased emissions.

Hoses and Vacuum/Vapor Harnesses Inspect surfaces of hoses and nylon tubing for evidence of heat and mechanical damage. Hard or soft spots, brittle rubber, cracking, tears, cuts, abrasions, and exces- sive swelling indicate deterioration of the rubber. Pay particular attention to the hoses nearest to high heat sources such as the exhaust manifold. Inspect hose rout- ing to be sure hoses do not touch any heat source or moving component that may cause heat damage or mechanical wear. Insure nylon tubing in these areas has not melted or collapsed. Inspect all hose connections such as clamps and couplings to make sure they are secure and no leaks

are present. Components should be replaced immedi- ately if there is any evidence of degradation that could cause failure. Brake System In order to assure brake system performance, all brake system components should be inspected periodically. Refer to the appropriate “Maintenance Schedule” in Section 8 for suggested service intervals.

WARNING!

Riding the brakes can lead to brake failure and possibly an accident. Driving with your foot resting or riding on the brake pedal can result in abnormally high brake temperatures, excessive lining wear, and possible brake damage. You wouldn’t have your full braking capacity in an emergency.

Brake and Power Steering System Hoses When servicing the vehicle for scheduled maintenance, inspect surface of hoses for evidence of heat and me- chanical damage. Hard and brittle rubber, cracking, tears, cuts, abrasion, and excessive swelling suggest deteriora- tion of the rubber. Particular attention should be made to examining those hose surfaces nearest to high heat sources, such as the exhaust manifold. Inspect all hose clamps and couplings to make sure they are secure and no leaks are present. NOTE: Often fluids such as oil, power steering fluid, and brake fluid are used during assembly plant opera- tions to ease the assembly of hoses to couplings. There- fore, oil wetness at the hose-coupling area is not neces- sarily an indication of leakage. Actual dripping of hot fluid when systems are under pressure (during vehicle operation) should be noted before hose is replaced based on leakage.

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Inspection of brake hoses should be done when- NOTE: ever the brake system is serviced and every engine oil change.

WARNING!

Worn brake hoses can burst and cause brake failure. You could have an accident. If you see any signs of cracking, scuffing, or worn spots, have the brake hoses replaced immediately.

Brake Master Cylinder The fluid level in the master cylinder should be checked when performing under hood services, or immediately if the brake system warning lamp shows system failure Be sure to clean the top of the master cylinder area before removing the cap. If necessary, add fluid to bring the fluid level up to the requirements described on the brake

336 MAINTAINING YOUR VEHICLE

fluid reservoir. With disc brakes, fluid level can be expected to fall as the brake pads wear. However, low fluid level may be caused by a leak and a checkup may be needed. Use only manufacturer’s recommended brake fluid, refer to Recommended Fluids, Lubricants, and Genuine Parts for correct fluid type.

WARNING!

Use of a brake fluid that may have a lower initial boiling point or unidentified as to specification, may result in sudden brake failure during hard pro- longed braking. You could have an accident.

WARNING!

Overfilling the brake fluid reservoir can result in spilling brake fluid on hot engine parts and the brake fluid catching fire.

Use only brake fluid that has been in a tightly closed container to avoid contamination from foreign matter. Do not allow petroleum base fluid to contaminate the brake fluid as seal damage will result. Automatic Transmission

Selection of Lubricant It is important that the proper lubricant is used in the transmission to assure optimum transmission perfor- mance. Use only manufacturer’s recommended transmis- sion fluid, refer to Recommended Fluids, Lubricants, and

Genuine Parts for correct fluid type. It is important that the transmission fluid be maintained at the prescribed level using the recommended fluid.

CAUTION!

Using a transmission fluid other than the manufac- turer’s recommended fluid may cause deterioration in transmission shift quality and/or torque converter shudder. Using a transmission fluid other than the manufacturer’s recommended fluid will result in more frequent fluid and filter changes. Refer to Recommended Fluids, Lubricants, and Genuine Parts for correct fluid type.

Fluid Level Check

If equipped with a dipstick, use the following NOTE: procedure. If your vehicle has a capped dipstick tube, it

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is sealed and should not be tampered with. Your autho- rized dealer has the proper tools to ensure that the fluid level is set properly. Check the fluid level while the transmission is at normal operating temperature. This occurs after at least 15 miles (25 km) of driving. At normal operating temperature the fluid cannot be held comfortably between the fingertips. To check the automatic transmission fluid level properly, the following procedure must be used: 1. Operate the engine at idle speed and normal operating temperature. 2. The vehicle must be on level ground. 3. Fully apply the parking brake and press the brake pedal. 4. Place the gear selector momentarily in each gear position ending with the lever in P (Park).

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5. Remove the dipstick, wipe it clean and reinsert it until seated. 6. Remove the dipstick again and note the fluid level on both sides. The fluid level should be between the “HOT” (upper) reference holes on the dipstick at normal operat- ing temperature. The fluid level is only valid if there is a solid coating of oil is seen on both sides of the dipstick. If the fluid is low, add as required into the dipstick tube. Do not overfill. After adding any quantity of oil through the oil fill tube, wait a minimum of two (2) minutes for the oil to fully drain into the transmission before rechecking the fluid level. If it is necessary to check the transmission below NOTE: the operating temperature, the fluid level should be between the two “COLD” (lower) holes on the dipstick with the fluid at approximately 70°F (21°C) (room tem- perature). If the fluid level is correctly established at room temperature, it should be between the “HOT”

(upper) reference holes when the transmission reaches 180°F (82°C). Remember it is best to check the level at the normal operating temperature.

CAUTION!

Be aware that if the fluid temperature is below 50°F (10°C) it may not register on the dipstick. Do not add fluid until the temperature is elevated enough to produce an accurate reading.

7. Check for leaks. Release parking brake. To prevent dirt and water from entering the transmission after checking or replenishing fluid, make certain that the dipstick cap is properly reseated. It is normal for the dipstick cap to spring back slightly from its fully seated position, as long as its seal remains engaged in the dipstick tube.

Special Additives The manufacturer recommends against the addition of any additives to the transmission. Exception to this policy is the use of special dyes to aid in detecting fluid leaks. Transfer Case

Fluid Level Check Inspect the transfer case for fluid leaks. If a fluid leak is found, the transfer case fluid level can be checked by removing the filler plug located on the back side of the transfer case. The fluid level should be at the bottom edge of the filler plug hole when the vehicle is in a level position. Adding Fluid Add fluid at the filler hole until it runs out of the hole when the vehicle is in a level position.

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Drain First remove fill plug, then remove drain plug. Recom- mended tightening torque for drain and fill plugs is 15–25 ft. lbs (20–34 N·m).

CAUTION!

When installing plugs, do not overtighten. You could damage them and cause them to leak.

Selection of Lubricant Use only manufacturer’s recommended fluid, refer to Recommended Fluids, Lubricants, and Genuine Parts for correct fluid type.

340 MAINTAINING YOUR VEHICLE

Front/Rear Axle Fluid

Front Axle Fluid Level Check Lubricant should be to the bottom of the oil fill hole. Rear Axle Fluid Level Check Lubricant should be 1/2” (1 cm) below the oil fill hole. Adding Fluid Add lubricant only at the fill hole and only to the level specified above. Selection of Lubricant Use only manufacturer’s recommended fluid, refer to Recommended Fluids, Lubricants, and Genuine Parts for correct fluid type.

Appearance Care And Protection From Corrosion

Protection of Body and Paint from Corrosion Vehicle body care requirements vary according to geo- graphic locations and usage. Chemicals that make roads passable in snow and ice, and those that are sprayed on trees and road surfaces during other seasons, are highly corrosive to the metal in your vehicle. The following maintenance recommendations will enable you to obtain maximum benefit from the corrosion resistance built into your vehicle. What Causes Corrosion? Corrosion is the result of deterioration or removal of paint and protective coatings from your vehicle. The most common causes are: • Road salt, dirt and moisture accumulation. • Stone and gravel impact.

• Insects, tree sap and tar. • Salt in the air near seacoast localities. • Atmospheric fallout/industrial pollutants. Washing • Wash your vehicle regularly. Always wash your ve- hicle in the shade using a mild car wash soap and rinse the panels completely with clear water. • If insects, tar or other similar deposits have accumu- • Use Mopar威 Auto Polish to remove road film and stains and to polish your vehicle. Take care never to scratch the paint. • Avoid using abrasive compounds and power buffing that may diminish the gloss or thin out the paint finish.

lated on your vehicle, wash it as soon as possible.

MAINTAINING YOUR VEHICLE 341

CAUTION!

Do not use abrasive or strong cleaning materials such as steel wool or scouring powder, which will scratch metal and painted surfaces.

Special Care • If you drive on salted or dusty roads or if you drive near the ocean, hose off the undercarriage at least once a month. • The drain holes in the lower edges of the doors, rocker panels, and rear liftgate must be kept clear and open. • If you detect any stone chips or scratches in the paint, touch them up immediately. The cost of such repairs is considered the responsibility of the owner.

342 MAINTAINING YOUR VEHICLE

• If your vehicle is damaged due to an accident or similar cause which destroys the paint and protective coating, have your vehicle repaired as soon as pos- sible. The cost of such repairs is considered the respon- sibility of the owner. • If you carry special cargo such as chemicals, fertilizers, de-icer salt, etc., assure that such materials are well packaged and sealed. • If a lot of driving is done on gravel roads, consider • Use Mopar威 Touch-Up Paint on scratches as soon as possible. Your authorized dealer has touch-up paint to match the color of your vehicle. • Aluminum wheels should be cleaned regularly with mild soap and water to prevent corrosion. To remove heavy soil, select a nonabrasive, non-acidic cleaner. Do

mud or stone shields behind each wheel.

not use scouring pads or metal polishes. Avoid auto- matic car washes that use acidic solutions or harsh brushes that may damage the wheels’ protective fin- ish.

Interior Care Use Mopar威 Fabric Cleaner to clean fabric upholstery and carpeting. Use Mopar威 Vinyl Cleaner to clean vinyl upholstery. Mopar威 Vinyl Cleaner is specifically recommended for interior vinyl trim. Do not use silicon based cleaning products on leather seats. They could cause cracking of the seat leather. Leather Seat Care & Cleaning Leather is best preserved by regular cleaning with a damp soft cloth. Small particles of dirt can act as an abrasive and damage the leather surface and should be removed promptly with a damp cloth. Stubborn soils can

be removed easily with a soft cloth and Mopar威 Total Clean. Care should be taken to avoid soaking the leather with any liquid. Please do not use polishes, oils, cleaning fluids, solvents, detergents, or ammonia based cleaners to clean the leather. Application of a leather conditioner is not required to maintain the original condition. Glass Surfaces All glass surfaces should be cleaned on a regular basis with any commercial household-type glass cleaner. Never use an abrasive type cleaner. Use caution when cleaning inside rear windows equipped with electric defrosters. Do not use scrapers or other sharp instru- ments which may scratch the elements. When cleaning the rear view mirror, spray cleaner on the towel or rag that you are using. Do not spray cleaner directly on the mirror.

MAINTAINING YOUR VEHICLE 343

WARNING!

Do not use volatile solvents for cleaning purposes. Many are potentially flammable, and if used in closed areas they may cause respiratory harm. Do not use gasoline, turpentine, kerosene, etc. for cleaning. Use the Mopar威 recommended products or the equivalents.

Carpet Vacuum your carpet regularly to prevent a soil build-up. Shampoo soiled carpet with a reliable upholstery cleaner, using a natural sponge or soft bristle brush. After carpet dries, vacuum it thoroughly. Seat Belt Maintenance Do not bleach, dye or clean the belts with chemical solvents or abrasive cleaners. This will weaken the fabric. Sun damage will also weaken the fabric.

344 MAINTAINING YOUR VEHICLE

If the belts need cleaning, use a mild soap solution or lukewarm water. Do not remove the belts from the vehicle to wash them. Replace the belts if they appear frayed or worn or if the buckles do not work properly. Maintenance After Off-Pavement Driving After extended operation in mud, sand or water, or similar dirty conditions, have your brake discs, brake linings, and axle joints inspected and cleaned as soon as possible. This will prevent any abrasive material from causing excessive wear or unpredictable braking action. Following off-pavement usage, completely inspect the underbody of your vehicle. Check tires, body structure, steering, suspension and exhaust system for damage. Check threaded fasteners for looseness, particularly on the chassis, drivetrain components, steering and suspen- sion. Retighten, if required, to torque values specified in the Service Manual. Also check for accumulations of

vegetation or brush that could become a fire hazard, or conceal damage to fuel lines, brake hoses, axle pinion seals, and propeller shafts.

CAUTION!

Under frequent heavy-duty driving conditions, change all lubricants and lubricate body compo- nents, all driveline joints and steering linkage more often than in normal service to prevent excessive wear.

FUSE PANEL

Interior Fuses The fuse panel is on the lower instrument panel just to the left of the steering column.

MAINTAINING YOUR VEHICLE 345

Cavity Fuse/Color 10
11
12

Description Audio Amp (B+) 30 Amp Pink Sunroof (B+) 15 Amp Blue 10 Amp Red Htd Mirror (EBL) 20 Amp Yellow Rr Pwr Out (B+) Rr HVAC (R/O) 10 Amp Red 10 Amp Red OCM (B+) 20 Amp Yellow Door Locks (B+) 15 Amp Blue 20 Amp Yellow Pwr Outlet (B+) 10 Amp Red Spare 10 Amp Red

Steer Col Lock (B+)

Ign Run Only Out (R/O)

Mem. Sw, Courtesy Lamp (B+)

Fuse Panel Location

13
14
15

Spare 20 Amp Yellow Cigar Ltr (R/A) 10 Amp Red

Tire Press Mon (R/O)

346 MAINTAINING YOUR VEHICLE

Description SCM, Cluster OBD (B+) Flipper Glass (B+) OCM (R/S)

Cavity Fuse/Color 10 Amp Red 16
17
15 Amp Blue 10 Amp Red 19
10 Amp Red WCM, Cluster (R/S) 20
15 Amp Blue 21
22
15 Amp Blue 10 Amp Red 24
25
10 Amp Red

Autowipe (Accy Delay) Rear Wiper (B+) PDC, FCM, A580 (R/S) ABS, Trans. Case Switch (R/S) Cycle -Wipers (B+) Non - Cycle Seats (B+) Non - Cycle Windows (De- lay)

CB1
CB2
CB3

20 Amp 20 Amp 20 Amp

Underhood Fuses (Power Distribution Center)

Power Distribution Center

Description

Cavity Fuse/Color 10
11
12
13
14
15
16

40 Amp Green HVAC Blower 30 Amp Pink Power Outlets Rr Wiper/Ign R/O 30 Amp Pink ABS Pump 30 Amp Pink Cabin Htr 1 (Diesel Only) 50 Amp Red 50 Amp Red ASD Rr HVAC (XK) 30 Amp Pink 40 Amp Green Acc Delay/Seats Spare 40 Amp Green 30 Amp Pink 40 Amp Green 40 Amp Green 50 Amp Red 50 Amp Red 25 Amp Natural

Starter/JB Power Cig Ltr/T-Tow EBL/Htd Mirror JB Power Cabin Htr 2 (Diesel Only) Cabin Htr 3 (Diesel Only) IPM/Coils

MAINTAINING YOUR VEHICLE 347

Description

ABS Valves

Cavity Fuse/Color 17
18
19
20
21
22
23
24
25
26
27
28
29
30
31

Spare 20 Amp Yellow TCM/AC Clutch 20 Amp Yellow Ign Sw 20 Amp Yellow PCM Batt (Gasoline Only) 30 Amp Pink Spare 20 Amp Yellow FDCM 20 Amp Yellow Fuel Pump 20 Amp Yellow FDCM/E-Diff. 15 Amp Blue 15 Amp Blue 25 Amp Natural NGC/Injectors Spare Spare Mini Relay

Hyd/PCM (Diesel Only) Brake/Stop Lamps

Cabin Htr 1 Rly (Diesel Only)

348 MAINTAINING YOUR VEHICLE

Cavity Fuse/Color Micro Relay 32
33
Micro Relay Micro Relay 34
Micro Relay 35
36
Mini Relay

38

39
40

Mini Relay

Mini Relay Mini Relay

Description TCM Rly (Gasoline Only) Starter Rly AC Clutch Rly Fuel Pump Rly Cabin Htr 3 Rly (Diesel Only) Cabin Htr 2 Rly (Diesel Only) HVAC Blower Rly ASD Rly

Underhood Fuses (Integrated Power Module)

Integrated Power Module

Description Wiper On/Off Rly Wiper Hi/Lo Rly Horn Rly Rear Fog Rly (BUX Only) Lt T-Tow Stop/Turn Rly Rt T-Tow Stop/Turn Rly Park Lamps Rly Lt Park Lamps T-Tow Park Lamps Rt Park Lamps Rad Fan Hi Rly

Cavity Fuse/Color Micro Relay Micro Relay Micro Relay Micro Relay Micro Relay Micro Relay Micro Relay 10 Amp Red 10 Amp Red 10
10 Amp Red Mini Relay 11
20 Amp Yellow FCM Batt #4
12
20 Amp Yellow FCM Batt #2
13
14
20 Amp Yellow Adjustable Pedal 20 Amp Yellow Ft Fog Lamps 15
16
20 Amp Yellow Horn

MAINTAINING YOUR VEHICLE 349

Description

Cavity Fuse/Color 17
18
19
20
21
22
23
24
25
26
27
28
29
30

20 Amp Yellow Rear Fogs 20 Amp Yellow FCM Batt #1
20 Amp Yellow Lt T-Tow Stop/Turn 20 Amp Yellow FCM Batt #3
20 Amp Yellow Rt T-Tow Stop/Turn 30 Amp Pink 50 Amp Red Mini Relay Micro Relay Micro Relay 15 Amp Blue 20 Amp Yellow IOD #2 (Audio) ORC (Ign R/.S) 10 Amp Red 10 Amp Red ORC (Ign R/O)

FDCM Mod Rad Fan Rad Fan Lo Rly Ft Fog Lamps Rly Adjustable Pedal Rly IOD #1

350 MAINTAINING YOUR VEHICLE

labeled Ignition-Off Draw (IOD#1).

VEHICLE STORAGE If you are leaving your vehicle dormant for more than 21
days you may want to take steps to protect your battery. You may: • Remove fuse #27 in the Intelligent Power Module • Or, disconnect the negative cable from the battery. • Anytime you store your vehicle, or keep it out of service (i.e. vacation) for two weeks or more, run the air conditioning system at idle for about five minutes in the fresh air and high blower setting. This will insure adequate system lubrication to minimize the possibility of compressor damage when the system is started again.

REPLACEMENT BULBS

Interior Lights Bulb Type Glove Box Light . . . . . . . . . . . . . . . . . . . . . . . . . 194
Grab Handle Light . . . . . . . . . . . . . . . . L002825W5W Overhead Console Reading Lights . . . . . . . . . . VT4976
Rear Cargo Light . . . . . . . . . . . . . . . . . . . . . . . 214–2
Visor Vanity Light . . . . . . . . . . . . . . . . . . . . . V26377
Underpanel Courtesy Lights. . . . . . . . . . . . . . . . . 906
Instrument Cluster (General Illumination) . . . . . . . 103
Telltale/Hazard Light . . . . . . . . . . . . . . . . . . . . . . 74
* Available only from authorized dealers.

Exterior Lights Bulb Type Backup Lights . . . . . . . . . . . . . . . . . . . . . . . . . 3157A Fog Lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9145
Front Park Lights (Limited) . . . . . . . . . . . . . . . 194NA Front Park Lights (Laredo). . . . . . . . . . . . . . . . 194NA Front Park/Turn Light (Limited) . . . . . . . . . . . . 3157A

Exterior Lights Bulb Type Front Park/Turn Light (Laredo) . . . . . . . . . . . . 3157A Front Side Marker (Limited) . . . . . . . . . . . . . . 194NA Front Side Marker (Laredo) . . . . . . . . . . . . . . . 194NA Headlights (Low Beam) . . . . . . . . . . . . . . . . . . . 9006
Headlights (High Beam) . . . . . . . . . . . . . . . . . . . 9005
Rear License Plate Light. . . . . . . . . . . . . . . . . . . . 168
Rear Stop/Tail Lights. . . . . . . . . . . . . . . . . . . . 3157A Rear Turn Signal Lights (2) . . . . . . . . . . . . . . . . 3157A NOTE: Numbers refer to commercial bulb types that can be purchased from your authorized dealer. If a bulb needs to be replaced, visit your authorized dealer or refer to the applicable Service Manual.

MAINTAINING YOUR VEHICLE 351

BULB REPLACEMENT

Head Light

1. Open the hood. 2. Remove the headlamp cover.

352 MAINTAINING YOUR VEHICLE

3. Turn the low or high beam bulb 1/4 turn counter clockwise to remove from housing.

CAUTION!

Do not touch the new bulb with your fingers. Oil contamination will severely shorten bulb life. If the bulb comes in contact with any oily surface, clean the bulb with rubbing alcohol.

4. Disconnect the electrical connector and replace the bulb.

Front Turn Signal

1. Open the hood. 2. Remove the headlamp cover.

MAINTAINING YOUR VEHICLE 353

3. Turn the turn signal bulb 1/4 turn counter clockwise to remove from housing.

4. Disconnect the electrical connector and replace the bulb.

354 MAINTAINING YOUR VEHICLE

CAUTION!

CAUTION!

Do not touch the new bulb with your fingers. Oil contamination will severely shorten bulb life. If the bulb comes in contact with any oily surface, clean the bulb with rubbing alcohol.

Do not touch the new bulb with your fingers. Oil contamination will severely shorten bulb life. If the bulb comes in contact with any oily surface, clean the bulb with rubbing alcohol.

Front Fog Light

1. Reach behind the front fascia from under the vehicle. 2. Turn the front fog light bulb 1/4 turn counter clock- wise to remove from housing. 3. Disconnect the electrical connector and replace bulb.

Rear Tail, Stop, Turn Signal, and Back-Up Lights

1. Raise the liftgate. 2. Remove the two Torx fasteners.

MAINTAINING YOUR VEHICLE 355

3. Squeeze the socket assembly tabs to remove it from the housing.

4. Pull the bulb to remove it from the socket. 5. Replace the bulb, reinstall the socket, and reattach the light assembly.

356 MAINTAINING YOUR VEHICLE

Center High Mounted Stop Light (CHMSL)

1. Remove the two screws securing the CHMSL.

2. Twist the bulb socket to remove from the CHMSL housing. 3. Pull the bulb out of the socket. 4. Replace the bulb, reinstall the socket and reattach the CHMSL.

FLUID CAPACITIES

Fuel (Approximate) Engine Oil with Filter

3.7 Liter Engine (5W-30, API Certified) 4.7 Liter Engine (5W-30, API Certified) 5.7 Liter Engine (5W-20, API Certified)

Cooling System * 3.7 Liter Engine (Mopar威 Engine Coolant/Antifreeze 5 Year/

100,000 Mile Formula)

4.7 Liter Engine (Mopar威 Engine Coolant/Antifreeze 5 Year/

100,000 Mile Formula)

5.7 Liter Engine (Mopar威 Engine Coolant/Antifreeze 5 Year/

100,000 Mile Formula)

* Includes heater and coolant recovery bottle filled to MAX level.

MAINTAINING YOUR VEHICLE 357

U.S.

20.6 Gallons

5 Qts 6 Qts 7 Qts

9 Qts

14.5 Qts

14.5 Qts

Metric 78 Liters

4.7 Liters 5.7 Liters 6.6 Liters

10 Liters

13.7 Liters

13.7 Liters

358 MAINTAINING YOUR VEHICLE

RECOMMENDED FLUIDS, LUBRICANTS AND GENUINE PARTS Engine Component Engine Coolant

Engine Oil (3.7L/4.7L Engines)

Engine Oil (5.7L Engines)

Oil Filter (All Engines) Spark Plugs

Fuel Selection (3.7L and 4.7L En- gines) Fuel Selection (5.7L Engines)

Fluid, Lubricant, or Genuine Part Mopar威 Antifreeze/Coolant 5 Year/100,000 Mile Formula HOAT (Hybrid Or- ganic Additive Technology) Use API Certified SAE 5W-30 Engine Oil, meeting the requirements of DaimlerChrysler Material Standard MS-6395. Use API Certified SAE 5W-20 Engine Oil, meeting the requirements of DaimlerChrysler Material Standard MS-6395. Mopar威 Oil Filter (P/N 05281090) Refer to the Vehicle Emission Control Information label in the engine com- partment. 87 Octane

87 Octane Acceptable - 89 Octane Recommended

Chassis Component Automatic Transmission Transfer Case Axle Differential (Front-Rear)

Brake Master Cylinder

Power Steering Reservoir

MAINTAINING YOUR VEHICLE 359

Fluid, Lubricant, or Genuine Part Mopar威 ATF+4 Automatic Transmission Fluid Mopar威 ATF+4 Automatic Transmission Fluid Mopar威 Synthetic Gear & Axle Lubricant SAE 75W-140 (API-GL5) or equivalent with friction modifier additive. Mopar威 DOT 3 Brake Fluid, SAE J1703 should be used. If DOT 3, SAE J1703 brake fluid is not available, then DOT 4 is acceptable. Use only rec- ommended brake fluids. This system requires the use of Mopar威 Hydraulic System Power Steering Fluid (P/N 05142893AA) or equivalent, which meets DaimlerChrysler Ma- terial Standard MS-10838.

MAINTENANCE SCHEDULES

CONTENTS

䡵 Emission Control System Maintenance . . . . . . . . 362
䡵 Maintenance Schedules . . . . . . . . . . . . . . . . . . . 362

▫ Schedule “B” . . . . . . . . . . . . . . . . . . . . . . . . 365
▫ Schedule “A” . . . . . . . . . . . . . . . . . . . . . . . . 376

M

362 MAINTENANCE SCHEDULES

EMISSION CONTROL SYSTEM MAINTENANCE The “Scheduled” maintenance services, listed in bold type must be done at the times or mileages specified to assure the continued proper functioning of the emission control system. These, and all other maintenance services included in this manual, should be done to provide best vehicle performance and reliability. More frequent main- tenance may be needed for vehicles in severe operating conditions such as dusty areas and very short trip driving. Inspection and service also should be done any time a malfunction is suspected. NOTE: Maintenance, replacement, or repair of the emis- sion control devices and systems on your vehicle may be performed by any automotive repair establishment or individual using any automotive part which has been certified pursuant to U.S. EPA or, in the State of Califor- nia, California Air Resources Board regulations.

MAINTENANCE SCHEDULES There are two maintenance schedules that show the required service for your vehicle. First is Schedule ⴖBⴖ. It is for vehicles that are operated under the conditions that are listed below and at the beginning of the schedule. • Day or night temperatures are below 32°F (0°C) • Stop and go driving • Excessive engine idling • Driving in dusty conditions • Short trips of less than 10 miles (16.2 km) • More than 50% of your driving is at sustained high • Trailer towing • Taxi, police, or delivery service (commercial service)

speeds during hot weather, above 90°F (32°C)

• Off-road or desert driving • If equipped for and operated with E-85 (ethanol)

fuel.

NOTE: Most vehicles are operated under the conditions listed for Schedule “B.” If ANY of these apply to you, change your NOTE: engine oil every 3,000 miles (5 000 km) or 3 months, whichever comes first, and follow the maintenance rec- ommendations in “Maintenance Schedule B.” If ANY of these apply to you then flush and NOTE: replace your engine coolant every 102,000 miles (163 000
km) or 60 months, whichever comes first, and follow “Schedule B” of the “Maintenance Schedules” section of this manual. Second is Schedule “A”. It is for vehicles that are not operated under any of the conditions listed under Sched- ule “B.”

MAINTENANCE SCHEDULES 363

Use the schedule that best describes your driving condi- tions. Where time and mileage are listed, follow the interval that occurs first.

CAUTION!

Failure to perform the required maintenance items may result in damage to the vehicle.

At Each Stop for Fuel • Check the engine oil level about 5 minutes after a fully warmed engine is shut off. Checking the oil level while the vehicle is on level ground will improve the accu- racy of the oil level reading. Add oil only when the level is at or below the ADD or MIN mark. • Check the windshield washer solvent, add as required.

364 MAINTENANCE SCHEDULES

damage.

Once a Month • Check the tire pressure and look for unusual wear or • Inspect the battery and clean and tighten the terminals • Check the fluid levels of the coolant reservoir, brake master cylinder, and transmission, and add as needed. • Check all lights and all other electrical items for correct

as required.

operation.

At Each Oil Change • Change the engine oil filter. • Inspect the exhaust system. • Inspect brake hoses. • Check the engine coolant/anti-freeze level, hoses, and • After completion of off-road operation, the underside of the vehicle should be thoroughly inspected. Exam- ine threaded fasteners for looseness.

clamps.

Schedule “B” Follow this schedule if you usually operate your vehicle under one or more of the following conditions. • Day or night temperatures are below 32°F (0°C) • Stop and go driving • Excessive engine idling • Driving in dusty conditions • Short trips of less than 10 miles (16.2 km) • More than 50% of your driving is at sustained high • Trailer towing • Taxi, police, or delivery service (commercial service)

speeds during hot weather, above 90°F (32°C)

• Off-road or desert driving • If equipped for and operated with E-85 (ethanol)

SCHEDULE “B” 365

fuel.

If ANY of these apply to you, change your NOTE: engine oil every 3,000 miles (5 000 km) or 3 months, whichever comes first, and follow the maintenance rec- ommendations in “Maintenance Schedule B.” If ANY of these apply to you then flush and NOTE: replace your engine coolant every 102,000 miles (163 000
km) or 60 months, whichever comes first, and follow “Schedule B” of the “Maintenance Schedules” section of this manual.

366 SCHEDULE “B”

Miles (Kilometers) Change the engine oil and engine oil filter, if not replaced at 3 months. Rotate the tires. Inspect the engine air cleaner filter, replace if nec- essary. Lubricate the upper knuckle ball stud at steering & suspension ball joints. Drain and refill the front and rear axles. Inspect the brake linings.

9,000
(14 000)

3,000
(5 000)

6,000
(10 000)

12,000
(19 000)

15,000
(24 000)

21,000
(34 000)

Miles (Kilometers) Change the engine oil and engine oil filter, if not replaced at 3 months. Rotate the tires. Inspect the engine air cleaner filter, replace if nec- essary. Inspect the PCV Valve, replace if necessary.〫 Replace the spark plugs. Lubricate the upper knuckle ball stud at steering & suspension ball joints. Drain and refill the front and rear axles. Inspect the brake linings. Drain the transfer case and refill.

18,000
(29 000)

SCHEDULE “B” 367

27,000
(43 000)

24,000
(38 000)

30,000
(48 000)

368 SCHEDULE “B”

Miles (Kilometers) Change the engine oil and engine oil filter, if not replaced at 3 months. Rotate the tires. Inspect the engine air cleaner filter, replace if nec- essary. Drain and refill the front and rear axles. Inspect the brake linings. Lubricate the upper knuckle ball stud at steering & suspension ball joints.

33,000
(53 000)

36,000
(58 000)

39,000
(62 000)

42,000
(67 000)

45,000
(72 000)

51,000
(82 000)

Miles (Kilometers) Change the engine oil and engine oil filter, if not replaced at 3 months. Rotate the tires. Inspect the engine air cleaner filter, replace if nec- essary. Inspect the PCV Valve, replace if necessary.〫 Replace the spark plugs. Inspect the ignition cables, replace if necessary (5.7L Only). Inspect drive belt, replace if necessary. Lubricate the upper knuckle ball stud at steering & suspension ball joints. Inspect the brake linings.

48,000
(77 000)

SCHEDULE “B” 369

57,000
(91 000)

54,000
(86 000)

60,000
(96 000)

370 SCHEDULE “B”

48,000
(77 000)

Miles (Kilometers) Drain and refill the front and rear axles. Drain and refill the automatic transmission fluid, and replace main sump filter (4.7L/5.7L Only).‡ Drain and refill the transfer case fluid. Flush and replace engine coolant/anti-freeze at 60
months, if not done at 102,000 miles (163 000 km). NOTE: ‡ Applies only if vehicle is used for frequent trailer towing, or fleet/commercial service.

51,000
(82 000)

54,000
(86 000)

57,000
(91 000)

60,000
(96 000)

Miles (Kilometers) Change the engine oil and engine oil filter, if not replaced at 3 months. Rotate the tires. Inspect the engine air cleaner filter, replace if nec- essary. Inspect the drive belt, replace if necessary. Lubricate the upper knuckle ball stud at steering & suspension ball joints. Inspect the brake linings. Drain and refill the front and rear axle fluid.

63,000
(101 000)

66,000
(106 000)

69,000
(110 000)

72,000
(115 000)

75,000
(120 000)

SCHEDULE “B” 371