SCHEDULED SERVICES - GASOLINE

1988 Jeep Cherokee

1984-88 MAINTENANCE

AMC/Jeep Maintenance & Service Intervals - Gasoline

Jeep; Cherokee, Wagoneer * PLEASE READ THIS FIRST *

NOTE: All SERVICE SCHEDULES are listed for normal service

vehicles. If vehicle is operated under severe service conditions, see SEVERE SERVICE REQUIREMENTS (PERFORM W/SERVICE SCHEDULES) for items requiring additional maintenance.

NOTE: This article contains scheduled maintenance service

information. Fluid types and capacities listed with each service in this article are only those necessary to perform that scheduled service. For specifications pertaining to fluid capacities for the entire vehicle, fuse and circuit breaker identification, wheel and tire size, battery type, warranty information, or model identification refer to the MAINTENANCE INFORMATION article in this section.

CAUTIONS & WARNINGS

AIR CONDITIONING MAINTENANCE

WARNING: NEVER add A/C refrigerant to correct a non-cooling problem unless pressure gauges are connected to the system by a certified technician. Lack of cooling may be caused by a restriction, therefore adding refrigerant can cause a dangerous pressure rise.

ANTI-LOCK BRAKE SYSTEM (If Equipped)

The anti-lock brake system contains electronic equipment that can be susceptible to interference caused by improperly installed or high output radio transmitting equipment. Since this interference could cause the possible loss of the anti-lock braking capability, such equipment should be installed by qualified professionals.

On models equipped with anti-lock brake systems, ALWAYS observe the following cautions:

65535. DO NOT attempt to bleed hydraulic system without first
       referring to the appropriate ANTI-LOCK BRAKE SYSTEM article
       in the BRAKES Section.

65536. DO NOT mix tire sizes. As long as tires remain close to the
       original diameter, increasing the width is acceptable.
       Rolling diameter must be identical for all 4 tires. Some
       manufacturers recommend tires of the same brand, style and
       type. Failure to follow this precaution may cause inaccurate
       wheel speed readings.

65537. Use ONLY recommended brake fluids. DO NOT use silicone brake
       fluids in an ABS-equipped vehicle.

BATTERY WARNING

WARNING: When battery is disconnected, vehicles equipped with

computers may lose memory data. When battery power is restored, driveability problems may exist on some vehicles. These vehicles may require a relearn procedure. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION section.

REPLACING BLOWN FUSES

Before replacing a blown fuse, remove ignition key, turn off all lights and accessories to avoid damaging the electrical system. Be sure to use fuse with the correct indicated amperage rating. The use of an incorrect amperage rating fuse may result in a dangerous electrical system overload.

BRAKE PAD WEAR INDICATOR

Indicator will cause a squealing or scraping noise, warning that brake pads need replacement.

BRAKE WARNING LIGHT

CAUTION: If BRAKE warning light is on with parking brake disengaged and engine running, there may be a problem in the hydraulic brake system. Braking effort, brake pedal travel and stopping distances may increase.

CATALYTIC CONVERTER

To prevent catalytic converter overheating, DO NOT allow engine to idle for more than 20 minutes.

COMMAND-TRAC (4WD)

CAUTION: NEVER operate a Command-Trac vehicle in 4WD on dry,

hard-surfaced roads for a sustained period. Use 4L only when needed for added pulling power. Operating vehicle in 4WD mode on such roads will cause stress and possible damage to components, as well as make shifting difficult. To reduce shifting effort, drive vehicle in Reverse for a few feet, or drive off hard-surfaced road momentarily to allow tire slippage.

FRONT AND REAR DIFFERENTIALS (4WD)

CAUTION: DO NOT use water, steam, kerosene or gasoline for flushing a differential. ONLY use a flushing oil.

TRAC-LOK DIFFERENTIALS (4WD)

CAUTION: DO NOT flush a rear axle Trac-Lok differential. Trac-Lok differentials may be cleaned only by disassembling the unit and wiping the components with clean, lint-free cloth.

CAUTION: NEVER attempt to engage Low range when vehicle is moving faster than 2-3 MPH, as transfer case damage may result.

GASOLINE CONTAINING ALCOHOL

CAUTION: Exclusive use of gasohol is not recommended. Vehicle test results have shown that significant fuel system corrosion can result when gasohol is used exclusively.

HALOGEN BULBS

Halogen bulbs contain pressurized gas which may explode if overheated. DO NOT touch glass portion of bulb with bare hands. Eye protection should be worn when handling or working around halogen bulbs.

OIL FILTER

CAUTION: The engine oil filter mount has metric threads. Use of a

filter with improper threads can result in oil leakage and possible engine damage. Look for M20 x 1.5 symbol on the filter.

RADIATOR CAP

CAUTION: Always disconnect the fan motor when working near the

radiator fan. The fan is temperature controlled and could start at any time even when the ignition key is in the OFF position. DO NOT loosen or remove radiator cap when cooling system is hot.

RADIATOR FAN

Keep hands away from radiator fan. Fan is controlled by a thermostatic switch which may come on or run for up to 15 minutes even after engine is turned off.

WHEEL & TIRE WARNINGS

CAUTION: Replacing original tires with different size tires may

result in false speedometer and odometer indications. Check with dealer before using different size tires on vehicle.

CAUTION: Ensure all 4 wheels on vehicle have same tire size, type and circumference in order to provide proper vehicle handling. DO NOT mix radial-ply with bias-ply or bias-belted tires. On 4WD vehicles, if tire size, type and circumference on all 4 wheels are not the same, gear shifting will be adversely affected and can damage transfer case.

CAUTION: Temporary-use spare tires are for emergency use only. DO

NOT drive vehicle faster than 50 MPH or more than 100 miles when using spare tire. DO NOT operate vehicle in 4WD mode when using spare tire, as damage to transfer case can result. Temporary-use spare tires have a total tread life of 3,000 miles.

SERVICE POINT LOCATIONS

Fig. 1: Service Point Locations (Typical) Courtesy of American Motors Corp.

ADDITIONAL SERVICE INFORMATION

50111732

Fig. 2: Hoist Lift Point Locations Courtesy of American Motors Corp.

NOTE: For more information regarding jacking and hoisting refer to the JACKING & HOISTING article in the

_{1. LUBRICATION POINTS}

Fig. 3: Brake Caliper Lubrication Points Courtesy of American Motors Corp.

NOTE: For more information regarding brake maintenance refer to the BRAKE SYSTEM article.

Fig. 4: Front Disconnect Housing Lubrication Point Courtesy of American Motors Corp.

IDENTIFICATION LABEL LOCATIONS

50J11725

Sustained High Speed Driving

Extensive Idling Conditions (Taxi Or Delivery-Type Service)

Driving Off-Road Or In Salty Or Sandy Areas

Driving In Water

Normal Service

Driven More Than 10 Miles Daily

No Severe Service Operating Conditions

SEVERE SERVICE REQUIREMENTS (PERFORM W/SERVICE SCHEDULES)

NOTE: The following services are to be performed on vehicles

subjected to severe service. See SEVERE & NORMAL SERVICE DEFINITIONS. This service is to be performed in addition to the normal services listed in the NORMAL MAINTENANCE SERVICE SCHEDULES.

SEVERE SERVICE CONDITIONS/ACTIONS TABLE

Condition	Action	Item	Perform Every (1)
Short Trips (About 15 Miles)	Replace	Engine Oil	3,000 Miles or 3 Months
	Replace	Engine Oil Filter	6,000 Miles or 6 Months
	Service	Lube Prop Shaft If Equipped With Fittings	3,000 Miles
	Replace	A/T Fluid	12,000 Miles
	Replace	Front And/Or Rear Axle Oil	12,000 Miles
	Replace	M/T Fluid Oil	18,000 Miles
Desert Or Cold Climate Operations	Replace	Engine Oil	3,000 Miles or 3 Months
	Replace	Engine Oil Filter	6,000 Miles or 6 Months
	Service	Lube Prop Shaft If Equipped With Fittings	3,000 Miles
	Replace	A/T Fluid	12,000 Miles
	Replace	Front And/Or Rear Axle Oil	12,000 Miles
	Replace	M/T Fluid Oil	18,000 Miles
Towing Or Heavily Loaded	Replace	Engine Oil	3,000 Miles or 3 Months
	Replace	Engine Oil Filter	6,000 Miles or 6 Months
	Service	Lube Prop	3,000 Miles

		Shaft If Equipped With Fittings
	Replace	A/T Fluid	12,000 Miles
	Replace	Front And/Or Rear Axle Oil	12,000 Miles
	Replace	M/T Fluid Oil	18,000 Miles
Severe Dust Conditions	Replace	Engine Oil	3,000 Miles or 3 Months
	Replace	Engine Oil Filter	6,000 Miles or 6 Months
	Service	Lube Prop Shaft If Equipped With Fittings	3,000 Miles
	Replace	A/T Fluid	12,000 Miles
	Replace	Front And/Or Rear Axle Oil	12,000 Miles
	Replace	M/T Fluid Oil	18,000 Miles
Hot Weather, Stop-And-Go Driving	Replace	Engine Oil	3,000 Miles or 3 Months
	Replace	Engine Oil Filter	6,000 Miles or 6 Months
	Service	Lube Prop Shaft If Equipped With Fittings	3,000 Miles
	Replace	A/T Fluid	12,000 Miles
	Replace	Front And/Or Rear Axle Oil	12,000 Miles
	Replace	M/T Fluid Oil	18,000 Miles
Sustained High Speed Driving	Replace	Engine Oil	3,000 Miles or 3 Months
	Replace	Engine Oil Filter	6,000 Miles or 6 Months
	Service	Lube Prop Shaft If Equipped With Fittings	3,000 Miles
	Replace	A/T Fluid	12,000 Miles
	Replace	Front And/Or Rear Axle Oil	12,000 Miles
	Replace	M/T Fluid Oil	18,000 Miles
Extensive Idling	Replace	Engine Oil	3,000 Miles or 3 Months

Conditions (Taxi Or Delivery Type Service)	Replace	Engine Oil Filter	6,000 Miles or 6 Months
	Service	Lube Prop Shaft If Equipped With Fittings	3,000 Miles
	Replace	A/T Fluid	12,000 Miles
	Replace	Front And/Or Rear Axle Oil	12,000 Miles
	Replace	M/T Fluid Oil	18,000 Miles
Driving Off-Road Or In Salty Or Sandy Areas	Replace	Engine Oil	3,000 Miles or 3 Months
	Replace	Engine Oil Filter	6,000 Miles or 6 Months
	Replace	4WD: Engine Oil	50 Hours
	Service	Lube Prop Shaft If Equipped With Fittings	3,000 Miles
	Replace	A/T Fluid	12,000 Miles
	Replace	Front And/Or Rear Axle Oil	12,000 Miles
	Replace	M/T Fluid Oil	18,000 Miles
Driving In Water	Replace	Engine Oil	3,000 Miles or 3 Months
	Replace	Engine Oil Filter	6,000 Miles or 6 Months
	Service	Lube Prop Shaft If Equipped With Fittings	3,000 Miles
	Replace	A/T Fluid	12,000 Miles
	Replace	Front And/Or Rear Axle Oil	12,000 Miles
	Replace	M/T Fluid Oil	18,000 Miles
	Service	Lube Prop Shaft Slip Splines	Daily
(1) - Perform these services number of months (since		at the mileage, hours of operation, or 5 last time), whichever comes first.