JEEP CHEROKEE 1988 Service Repair Manual
Manufacturer: JEEP, Model Year: 1988, Model line: CHEROKEE, Model: JEEP CHEROKEE 1988Pages: 1378, PDF Size: 19.9 MB
Page 951 of 1378
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.
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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
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Fig. 1: Service Point Locations (Typical)
Courtesy of American Motors Corp.
ADDITIONAL SERVICE INFORMATION
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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
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WHEEL ALIGNMENT section.
Fig. 3: Brake Caliper Lubrication Points
Courtesy of American Motors Corp.
NOTE: For more information regarding brake maintenance refer
to the BRAKE SYSTEM article.
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Fig. 4: Front Disconnect Housing Lubrication Point
Courtesy of American Motors Corp.
IDENTIFICATION LABEL LOCATIONS
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Fig. 5: Identification Label Locations
Courtesy of American Motors Corp.
SPARK PLUG REPLACEMENT INTERVALS
Spark plug replacement intervals, if given, are for Original
Equipment Manufacturer (OEM) installed or specified plugs. If vehicle
is equipped with platinum type or other non-OEM type spark plugs,
follow replacement interval specified by spark plug manufacturer.
OXYGEN SENSOR
If vehicle is equipped with an oxygen sensor, replace at 82,
500 miles or when the emissions maintenance reminder light remains on
continuously with the key in the ON position, whichever occurs first.
SEVERE & NORMAL SERVICE DEFINITIONS
CAUTION: Use the Severe Service schedule if the vehicle to be serviced
is operated under ANY (one or more) of these conditions:
Service is recommended at mileage intervals based on vehicle
operation. Normal Service and Severe Service are based on the
following primary operating conditions:
Severe Service
* Short Trips (About 15 Miles)
* Desert Or Cold Climate Operation
* Towing Or Heavily Loaded
* Severe Dust Conditions
* Hot Weather, Stop-And-Go Driving
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* 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
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Condition Action Item Perform Every (1)
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Short Trips Replace Engine Oil 3,000 Miles or 3 Months
(About 15 Miles)
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\b\
\b\
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Replace Engine Oil 6,000 Miles or 6 Months
Filter
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\b\
\b\
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Service Lube Prop 3,000 Miles
Shaft If
Equipped With
Fittings
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\b\
\b\
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Replace A/T Fluid 12,000 Miles
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\b\
\b\
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Replace Front And/Or 12,000 Miles
Rear Axle Oil
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\b\
\b\
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Replace M/T Fluid Oil 18,000 Miles
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\b\
\b\
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Desert Or Cold Replace Engine Oil 3,000 Miles or 3 Months
Climate Operations
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\b\
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Replace Engine Oil 6,000 Miles or 6 Months
Filter
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\b\
\b\
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Service Lube Prop 3,000 Miles
Shaft If
Equipped With
Fittings
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\b\
\b\
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Replace A/T Fluid 12,000 Miles
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\b\
\b\
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Replace Front And/Or 12,000 Miles
Rear Axle Oil
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\b\
\b\
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Replace M/T Fluid Oil 18,000 Miles
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\b\
\b\
\b\
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Towing Or Heavily Replace Engine Oil 3,000 Miles or 3 Months
Loaded
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\b\
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Replace Engine Oil 6,000 Miles or 6 Months
Filter
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\b\
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Service Lube Prop 3,000 Miles
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Shaft If
Equipped With
Fittings
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\b\
\b\
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Replace A/T Fluid 12,000 Miles
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\b\
\b\
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Replace Front And/Or 12,000 Miles
Rear Axle Oil
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\b\
\b\
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Replace M/T Fluid Oil 18,000 Miles
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\b\
\b\
\b\
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Severe Dust Replace Engine Oil 3,000 Miles or 3 Months
Conditions
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\b\
\b\
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Replace Engine Oil 6,000 Miles or 6 Months
Filter
\
\b\
\b\
\
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Service Lube Prop 3,000 Miles
Shaft If
Equipped With
Fittings
\
\b\
\b\
\
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Replace A/T Fluid 12,000 Miles
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\b\
\b\
\
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Replace Front And/Or 12,000 Miles
Rear Axle Oil
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\b\
\b\
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Replace M/T Fluid Oil 18,000 Miles
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\b\
\b\
\b\
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Hot Weather, Stop- Replace Engine Oil 3,000 Miles or 3 Months
And-Go Driving
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\b\
\b\
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Replace Engine Oil 6,000 Miles or 6 Months
Filter
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\b\
\b\
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Service Lube Prop 3,000 Miles
Shaft If
Equipped With
Fittings
\
\b\
\b\
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Replace A/T Fluid 12,000 Miles
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\b\
\b\
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Replace Front And/Or 12,000 Miles
Rear Axle Oil
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\b\
\b\
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Replace M/T Fluid Oil 18,000 Miles
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\b\
\b\
\b\
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Sustained High Replace Engine Oil 3,000 Miles or 3 Months
Speed Driving
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\b\
\b\
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Replace Engine Oil 6,000 Miles or 6 Months
Filter
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\b\
\b\
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Service Lube Prop 3,000 Miles
Shaft If
Equipped With
Fittings
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\b\
\b\
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Replace A/T Fluid 12,000 Miles
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\b\
\b\
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Replace Front And/Or 12,000 Miles
Rear Axle Oil
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\b\
\b\
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Replace M/T Fluid Oil 18,000 Miles
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\b\
\b\
\b\
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Extensive Idling Replace Engine Oil 3,000 Miles or 3 Months
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![JEEP CHEROKEE 1988 Service Repair Manual Conditions (Taxi \
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Or Delivery Type Replace Engine Oil 6,000 Miles or 6 Month](/img/16/57037/w960_57037-959.png "JEEP CHEROKEE 1988 Service Repair Manual Conditions (Taxi \
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Or Delivery Type Replace Engine Oil 6,000 Miles or 6 Month")
Conditions (Taxi \
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Or Delivery Type Replace Engine Oil 6,000 Miles or 6 Months
Service) Filter
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\b\
\b\
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Service Lube Prop 3,000 Miles
Shaft If
Equipped With
Fittings
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\b\
\b\
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Replace A/T Fluid 12,000 Miles
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\b\
\b\
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Replace Front And/Or 12,000 Miles
Rear Axle Oil
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\b\
\b\
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Replace M/T Fluid Oil 18,000 Miles
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\b\
\b\
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Driving Off-Road Replace Engine Oil 3,000 Miles or 3 Months
Or In Salty Or
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\b\
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Sandy Areas Replace Engine Oil 6,000 Miles or 6 Months
Filter
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\b\
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Replace 4WD: Engine 50 Hours
Oil
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\b\
\b\
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Service Lube Prop 3,000 Miles
Shaft If
Equipped With
Fittings
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\b\
\b\
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Replace A/T Fluid 12,000 Miles
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\b\
\b\
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Replace Front And/Or 12,000 Miles
Rear Axle Oil
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\b\
\b\
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Replace M/T Fluid Oil 18,000 Miles
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\b\
\b\
\b\
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Driving In Water Replace Engine Oil 3,000 Miles or 3 Months
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\b\
\b\
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Replace Engine Oil 6,000 Miles or 6 Months
Filter
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\b\
\b\
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Service Lube Prop 3,000 Miles
Shaft If
Equipped With
Fittings
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\b\
\b\
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Replace A/T Fluid 12,000 Miles
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\b\
\b\
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Replace Front And/Or 12,000 Miles
Rear Axle Oil
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\b\
\b\
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Replace M/T Fluid Oil 18,000 Miles
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\b\
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Service Lube Prop Daily
Shaft Slip
Splines
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1) - Perform these services at the mileage, hours of operation, or
number of months (since last time), whichever comes first.
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