FLUID CAPACITIES
Fuel Tank
XJ .....................................................76.4 L (20.2 gal.)
YJ(Standard) ......................................56.8 L (15 gal.)
YJ(Optional) .......................................75.7 L (20 gal.)
Engine Oil
2.5L ......................................................3.8 L (4.0 qts.)
4.0L ......................................................5.7 L (6.0 qts.)
Cooling System
2.5L(XJ).............................................9.5 L* (10 qts.*)
2.5L(YJ) ........................................8.5 L** (9.0 qts.**)
4.0L(XJ) ........................................11.4 L* (12.0 qts.*)
4.0L(YJ) ......................................9.9 L** (10.5 qts.**)
* Includes (2.2 L) (2.3 qts) for coolant recovery res-
ervoir.
** Includes (0.9 L) (1.0 qt.) for coolant recovery res-
ervoir.
Automatic Transmission
Dry fill capacity.*
AW4 (XJ-4.0L) ...................................8.0 L (16.9 pts.)
30RH (YJ-2.5L) .................................8.2 L (17.5 pts.)
32RH (YJ-4.0L) .................................8.2 L (17.5 pts.)
*Depending on type and size of internal cooler,
length and inside diameter of cooler lines, or use ofan auxiliary cooler, these figures may vary. Refer to
Group 21, Transmission for proper fluid fill proce-
dure.
Manual Transmission
AX4/5 (4X2) .........................................3.3 L (3.5 qts.)
AX5 (4X4) ............................................3.2 L (3.3 qts.)
AX15 (4X2) ..........................................3.1 L (3.2 qts.)
AX15 (4X4) ......................................3.15 L (3.32 qts.)
Fill to bottom of fill hole.
Transfer Case
SELEC-TRAC 242(XJ) .......................1.4 L (3.0 pts.)
COMMAND-TRAC 231(XJ) ...............1.0 L (2.2 pts.)
COMMAND-TRAC 231(YJ-Man Trans) ..1.5 L (3.25
pts.)
COMMAND-TRAC 231(YJ-Auto Trans) ....1.0 L (2.2
pts.)
Front Axle
MODEL 30 (YJ) ..............................1.65 L (3.76 pts.)
MODEL 30 (XJ) ..............................1.48 L (3.13 pts.)
Rear Axle
MODEL 35 (XJ-YJ) ........................1.6 L (3.38 pts.*)
8-1/4 (XJ) .........................................2.08 L (4.4 pts.*)
* When equipped with TRAC-LOK, include 2
ounces of Friction Modifier Additive.
JLUBRICATION AND MAINTENANCE 0 - 3
MAINTENANCE SCHEDULES
INTRODUCTION
There are two maintenance schedules that show
proper service intervals for Jeep Cherokee and Jeep
Wrangler vehicles. Use the schedule that best de-
scribes the conditions the vehicle is operated under.
When mileage and time is listed, follow the interval
that occurs first.
ScheduleÐAlists all the scheduled maintenance
to be performed under normal operating conditions.
ScheduleÐBis a schedule for vehicles that are
usually operated under one or more of the following
conditions.
²Frequent short trip driving less than 5 miles (8
km).
²Frequent driving in dusty conditions.
²Trailer towing or heavy load hauling.
²Frequent long periods of engine idling.
²Sustained high speed operation.
²Desert operation.
²Frequent starting and stopping.
²Cold climate operation.
²Off road driving.
²Commercial service.
²Snow plow operation.
²More than half of vehicle operation occurs in
heavy city traffic during hot weather (above 90É F).
AT EACH STOP FOR GASOLINE
²Check engine oil level and add as required.
²Check windshield washer solvent and add as re-
quired.
ONCE A MONTH
²Check tire pressure and look for unusual tire wear
or damage.
²Check fluid levels of coolant reservoir, brake mas-
ter cylinder, power steering and transmission. Add
fluid as required.
²Check all lights and other electrical items for cor-
rect operation.
²Inspect battery and clean and tighten terminals as
required.
²Check rubber seals on each side of the radiator for
proper fit.
AT EACH OIL CHANGE
²Inspect exhaust system.
²Inspect brake hoses.
²Rotate the tires at each oil change interval shown
on ScheduleÐA: (7,500 Miles) or every other interval
shown on ScheduleÐB: (6,000 Miles).
²Check engine coolant level, hoses, and clamps.
²Lubricate 4x4 steering linkage.
²Lubricate propeller shaft universal joints and slip
spline, if equipped.After completion of off-road (4WD) operation, the
underside of the vehicle should be thoroughly in-
spected. Examine threaded fasteners for looseness.
HARSH SURFACE ENVIRONMENTS
After vehicle operation in a harsh surface environ-
ment, the following components should be inspected
and cleaned as soon as possible:
²Brake drums.
²Brake linings.
²Front wheel bearings (2WD vehicles only).
²Axle coupling joints.
This will prevent wear and/or unpredictable brake
action.
EMISSION CONTROL SYSTEM MAINTENANCE
The schedule emission maintenance listed inbold
typeon the following schedules, must be done at the
mileage 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 the best vehicle
performance and reliability. More frequent mainte-
nance may be needed for vehicles in severe operating
conditions such as dusty areas and very short trip
driving.
SCHEDULEÐA
7,500 MILES (12 000 KM) OR AT 6 MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
15,000 MILES (24 000 KM) OR AT 12 MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage.
22,500 MILES (36 000 KM) OR AT 18 MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Inspect brake linings.
30,000 MILES (48 000 KM) OR AT 24 MONTHS
²Replace air cleaner element.
²Replace spark plugs.
²Adjust belt tension on non-automatic tensioning
drive belts.
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage.
²Drain and refill automatic transmission.
²Drain and refill transfer case.
0 - 4 LUBRICATION AND MAINTENANCEJ
37,500 MILES (60 000 KM) OR AT 30 MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill manual transmission.
45,000 MILES (72 500 KM) OR AT 36 MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage.
²Inspect brake linings.
²Flush and replace engine coolant, regardless of
mileage.
52,500 MILES (84 500 KM) OR AT 42 MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Flush and replace engine coolant if not done at 36
months.
60,000 MILES (96 500 KM) OR AT 48 MONTHS
²Replace air cleaner element.
²Replace distributor cap and rotor.
²Replace ignition wires.
²Replace spark plugs.
²Adjust or replace drive belts.
²Change engine oil.
²Replace engine oil filter.
²Replace fuel filter. (See Note #1)
²Lubricate steering linkage.
²Drain and refill automatic transmission.
²Drain and refill transfer case.
67,500 MILES (108 500 KM) OR AT 54
MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Inspect brake linings.
75,000 MILES (120 500 KM) OR AT 60
MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage.
²Drain and refill manual transmission.
²Flush and replace engine coolant if it has been
30,000 miles (48 000 km) or 24 months since last
change.
82,500 MILES (133 000 KM) OR AT 66
MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).²Flush and replace engine coolant if it has been
30,000 miles (48 000 km) or 24 months since last
change.
90,000 MILES (145 000 KM) OR AT 72
MONTHS
²Replace air cleaner element.
²Replace spark plugs.
²Adjust drive belts.
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage.
²Inspect brake linings.
²Drain and refill automatic transmission.
²Drain and refill transfer case.
97,500 MILES (157 000 KM) OR AT 78
MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
105,000 MILES (169 000 KM) OR AT 84
MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage.
²Flush and replace engine coolant if it has been
30,000 miles (48 000 km) or 24 months since last
change.
112,500 MILES (181 000 KM) OR AT 90
MONTHS
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Inspect brake linings.
²Drain and refill manual transmission.
²Flush and replace engine coolant if it has been
30,000 miles (48 000 km) or 24 months since last
change.
120,000 MILES (193 000 KM) OR AT 96
MONTHS
²Replace air cleaner element.
²Replace distributor cap and rotor.
²Lubricate steering linkage.
²Drain and refill automatic transmission.
²Drain and refill transfer case.
²Replace ignition wires.
²Replace spark plugs.
²Adjust or replace drive belts.
²Change engine oil.
²Replace engine oil filter.
²Replace fuel filter. (See note #1)
JLUBRICATION AND MAINTENANCE 0 - 5
SCHEDULEÐB
3,000 MILES (4 800KM)
²Change engine oil.
²Replace engine oil filter.
6,000 MILES (9 600KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
9,000 MILES (14 400KM)
²Change engine oil.
²Replace engine oil filter.
12,000 MILES (19 200KM)
²Change engine oil.
²Replace engine oil filter.
²Drain and refill automatic transmission.
²Change front and rear axle fluid.*
²Lubricate steering linkage (4x4).
²Inspect brake linings.
15,000 MILES (24 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x2).
²Inspect air cleaner element, replace as necessary.
18,000 MILES (29 000KM)
²Change engine oil.
²Replace engine oil filter.
²Drain and refill Manual transmission fluid.
²Lubricate steering linkage (4x4).
21,000 MILES (34 000KM)
²Change engine oil.
²Replace engine oil filter.
24,000 MILES (38 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill automatic transmission.
²Change front and rear axle fluid.*
²Inspect brake linings.
²Inspect front wheel bearings, Clean and repack if
required (4x2).
27,000 MILES (43 000KM)
²Change engine oil.
²Replace engine oil filter.
30,000 MILES (48 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage joints.
²Replace spark plugs.
²Replace air cleaner element.²Adjust drive belts.
²Drain and refill transfer case fluid.
33,000 MILES (53 000KM)
²Change engine oil.
²Replace engine oil filter.
36,000 MILES (58 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill automatic transmission.
²Drain and refill manual transmission fluid.
²Change front and rear axle fluid.*
²Inspect brake linings.
39,000 MILES (62 000KM)
²Change engine oil.
²Replace engine oil filter.
42,000 MILES (67 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
45,000 MILES (72 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x2).
²Inspect air cleaner element, replace as necessary.
48,000 MILES (77 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill automatic transmission.
²Change front and rear axle fluid.*
²Inspect brake linings.
51,000 MILES (82 000KM)
²Change engine oil.
²Replace engine oil filter.
²Flush and replace engine coolant.
54,000 MILES (86 400KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill Manual transmission fluid.
57,000 MILES (91 000KM)
²Change engine oil.
²Replace engine oil filter.
60,000 MILES (96 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage joints.
²Replace spark plugs.
0 - 6 LUBRICATION AND MAINTENANCEJ
²Drain and refill automatic transmission fluid.
²Change front and rear axle fluid.*
²Replace air cleaner element.
²Replace distributor cap and rotor.
²Replace ignition wires.
²Adjust or replace drive belts.
²Replace fuel filter. See note #1.
²Inspect brake linings.
²Drain and refill transfer case.
63,000 MILES (102 000KM)
²Change engine oil.
²Replace engine oil filter.
66,000 MILES (105 600KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
69,000 MILES (110 000KM)
²Change engine oil.
²Replace engine oil filter.
72,000 MILES (115 200KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill Manual transmission fluid.
²Drain and refill automatic transmission.
²Change front and rear axle fluid.*
²Inspect brake linings.
75,000 MILES (120 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x2).
²Inspect air cleaner element, replace as necessary.
78,000 MILES (125 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
81,000 MILES (130 000KM)
²Change engine oil.
²Replace engine oil filter.
²Flush and replace engine coolant.
84,000 MILES (134 400KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill automatic transmission fluid.
²Change front and rear axle fluid.*
²Inspect brake linings.
87,000 MILES (140 000KM)
²Change engine oil.
²Replace engine oil filter.
90,000 MILES (144 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage.
²Replace spark plugs.
²Drain and refill Manual transmission fluid.
²Replace air cleaner element.
²Adjust drive belts.
²Drain and refill transfer case fluid.
93,000 MILES (149 000KM)
²Change engine oil.
²Replace engine oil filter.
96,000 MILES (154 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill automatic transmission fluid.
²Change front and rear axle fluid.*
²Inspect brake linings.
99,000 MILES (158 400KM)
²Change engine oil.
²Replace engine oil filter.
102,000 MILES (163 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
105,000 MILES (168 000KM)
²Change engine oil.
²Replace engine oil filter.
²Inspect air cleaner element, replace as necessary.
²Lubricate steering linkage (4x2).
108,000 MILES (172 800KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
²Drain and refill Manual transmission fluid.
²Drain and refill automatic transmission fluid.
²Change front and rear axle fluid.*
²Inspect brake linings.
111,000 MILES (177 600KM)
²Change engine oil.
²Replace engine oil filter.
²Flush and replace engine coolant.
114,000 MILES (182 400KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage (4x4).
117,000 MILES (187 200KM)
²Change engine oil.
²Replace engine oil filter.
JLUBRICATION AND MAINTENANCE 0 - 7
120,000 MILES (192 000KM)
²Change engine oil.
²Replace engine oil filter.
²Lubricate steering linkage.
²Replace spark plugs.
²Drain and refill automatic transmission fluid.
²Change front and rear axle fluid.*
²Inspect brake linings.
²Replace air cleaner element.
²Replace distributor cap and rotor.
²Replace ignition wires.
²Adjust or replace drive belts.
²Replace fuel filter. See note #1.²Drain and refill transfer case fluid.
NOTE 1:Not required for California vehicles, rec-
ommended for proper vehicle performance.
* Off-highway operation, trailer towing, taxi, limou-
sine, bus, snow plowing, or other types of commercial
service or prolonged operation with heavy loading,
especially in hot weather, require front and rear axle
service indicated witha*inScheduleÐB. Perform
these services if you usually operate your vehicle un-
der these conditions.
Inspection and service should also be performed
anytime a malfunction is observed or suspected.
0 - 8 LUBRICATION AND MAINTENANCEJ
TOWING-FRONT END LIFTED (SLING-TYPE)
CAUTION: Many vehicles are equipped with air
dams, spoilers, and/or ground effect panels. To
avoid component damage, a wheel-lift towing vehi-
cle or a flat-bed hauling vehicle is recommended.
If a 2WD XJ vehicle cannot be towed with the rear
wheels lifted, it can be towed with the front wheels
lifted.
(1) Attach a J-hook to the disabled vehicle at the
left side of the axle.
(2) Position the sling crossbar close to the J-hook
and below the front bumper.
(3) Secure a chain to the right side of vehicle by
placing it over the axle shaft tube and attaching it to
a structural member (Fig. 5).
(4) Attach the safety chains to the vehicle.
(5) Turn the ignition switch to the OFF position to
unlock the steering wheel.
2WD-AUTOMATIC TRANSMISSION
Provided the transmission is operable, tow only in
NEUTRALat speeds not to exceed 30 mph (50
km/h) and distances less than 15 miles (25km/h).
If the vehicle is to be towed more than 15 miles,
the propeller shaft should be disconnected or place
tow dollies under rear wheels.
2WD-MANUAL TRANSMISSION
To reduce the possible damage of transmission com-
ponents, the propeller shaft must be removed or
place tow dollies under the rear wheels before tow-
ing. Refer to Propeller Shafts, Group 16 for proper
removal procedure.
FOUR-WHEEL-DRIVE VEHICLE TOWING
Chrysler Corporation recommends that a vehicle be
transported on a flat-bed device. A Wheel-lift or
Sling-type device can be used provided all the wheels
are lifted off the ground using tow dollies.
TOWING-REAR END LIFTED (SLING-TYPE)
4WD XJ VEHICLES
(1) Raise the front of the vehicle off the ground
and install tow dollies under front wheels.
(2) Attach J-hooks around the rear axle shaft tube
outboard of the shock absorber.
(3) Place the sling crossbar under and forward of
the bumper.
(4) Attach safety chains around the frame rails.
(5) Turn the ignition switch to the OFF position to
unlock the steering wheel.
(6) Secure steering wheel in the straight ahead po-
sition with a clamp device designed for towing.
(7) Shift the transfer case to NEUTRAL.
4WD YJ VEHICLES
Use Wheel-Lift equipment and Tow Dollies
when towing from the rear end of the vehicle.
TOWING-FRONT END LIFTED (SLING-TYPE)
4WD XJ VEHICLES
(1) Raise the rear of the vehicle off the ground and
install tow dollies under rear wheels.
(2) Attach a J-hook to the disabled vehicle at the
left side of front the axle.
(3) Position the sling crossbar close to the J-hook
and below the front bumper (Fig. 6).
(4) Secure a chain to the right side of vehicle by
placing it over the axle shaft tube and attaching it to
a structural member
(4) Attach the safety chains to the vehicle.
(5) Turn the ignition switch to the OFF position to
unlock the steering wheel.
(6) Shift transfer case to NEUTRAL.
Fig. 5 Sling-Type, Front-End Towing (XJ Rear View)
Fig. 6 Sling-Type, Front-End Towing (XJ Front View)
0 - 12 LUBRICATION AND MAINTENANCEJ
DRIVETRAIN
INDEX
page page
Automatic Transmission.................... 23
Clutch and Brake Pedal Bushings............. 22
Clutch Master Cylinder..................... 22
Drive Shafts............................. 26Front and Rear Axles...................... 24
Manual Transmission...................... 22
Rubber and Plastic Hoses/Tubing............. 26
Transfer Case (4WD Vehicles)................ 24
CLUTCH AND BRAKE PEDAL BUSHINGS
If the clutch and brake pedal mechanism squeaks,
the pivot bushings should be lubricated. Use Mopar
Multi-Purpose Lubricant, or an equivalent. Refer to
Group 5, Brakes for location of bushings.
CLUTCH MASTER CYLINDER
LEVEL INSPECTION
WARNING: DO NOT ALLOW PETROLEUM OR WA-
TER BASE LIQUIDS TO CONTAMINATE CLUTCH
FLUID, SEAL DAMAGE AND CLUTCH FAILURE CAN
RESULT.
The clutch reservoir level should be inspected when
other underhood service is performed. (Fig. 1)
The fluid level is determined by its height in rela-
tion to the level indicator ring (Fig. 2) located inside
the reservoir. Add fluid until the height is level with
the indicator ring.
FLUID SPECIFICATION
Use Mopar, Brake And Hydraulic Clutch Fluid or
equivalent. Use only brake fluid conforming to DOT
3, Federal, Department of Transportation specifica-
tion. To avoid fluid contamination, use fluid from a
properly sealed container.CAUTION: Never use reclaimed brake fluid or fluid
from an unsealed container. In addition, do not use
fluid from a container that has been opened and al-
lowed to stand for an extended length of time.
Moisture in the air can be absorbed by the fluid,
which causes dilution with loss of effectiveness.
MANUAL TRANSMISSION
The manual transmission should be inspected for
oil leaks and proper oil level when other under vehi-
cle service is performed.
LUBRICANT SPECIFICATION
When it becomes necessary to add to or change the
lube oil in a Jeep manual transmission, use SAE
75W-90, API Quality Grade GL-5 gear lubricant.
LUBRICANT LEVEL
The fill-hole plug for all manual transmissions is
located on the right side of the case (Fig. 3). Deter-
mine the lubricant level according to the following
procedure.
(1) Remove the fill-hole plug (Fig. 3) from the
transmission. The lube oil should be level with the
bottom edge of the fill hole. The level can be slightly
below the bottom edge of the fill hole if the lube oil is
cold.
Fig. 1 Clutch Reservoir LocationÐTypical
Fig. 2 Hydraulic Clutch Fluid LevelÐTypical
0 - 22 LUBRICATION AND MAINTENANCEJ