check transmission fluid JEEP CHEROKEE 1988 Service Repair Manual
[x] Cancel search | Manufacturer: JEEP, Model Year: 1988, Model line: CHEROKEE, Model: JEEP CHEROKEE 1988Pages: 1378, PDF Size: 19.9 MB
Page 206 of 1378
This test verifies the correct operation of the AW4
transmission. It must be performed after finding no faults using the
DRB-II, and after a vehicle repair has been made.
1) Turn ignition key to "OFF".
2) Hold the MODE key and press the ATM key on the DRB-II at
the same time to restart the DRB-II.
3) Turn ignition key to "ON".
4) Reconnect all previously disconnected connectors.
5) Verify that the AW4 transmission control unit is properly
mounted.
6) Make sure the transmission fluid is at the proper level.
Check the fluid with the transmission temperature hot, the vehicle on
level ground, and the gear selector in neutral.
7) If any repairs have been made, test the vehicle as
instructed in TEST 1A - VERIFICATION OF THE COMPLAINT , and read faults
using the DRB-II. If there are any fault messages present, repeat TEST
1A - VERIFICATION OF THE COMPLAINT.
TEST 3A - STORED DIAGNOSTIC TROUBLE CODES TEST
NOTE: Perform TEST 1A - VERIFICATION OF THE COMPLAINT
before proceeding.
1) At this point, the Visual Inspection has been performed, a
"FAULT STORED" code has been found and the vehicle has been test
driven. The fault code is not "FAULT PRESENT", so it cannot be
considered a CURRENT or HARD fault.
2) All solenoid circuits are in the same harness and a common
ground wire is used for the solenoids. Use the following figures to
identify the harness and connector to inspect. See Fig. 7 and 8. if
all 3 solenoid faults are present, repair the Black wire (Cherokee)
ground wire open condition.
3) Carefully inspect the entire suspected circuit. Pay
particular attention to connectors, corrosion, accident damage, and
improper or missing parts.
4) If any problems are found, make the appropriate repair.
Then perform TEST 1A using the DRB-II.
5) Erase fault codes.
6) If no problems are found, perform the SYSTEM TEST using
the DRB-II. Re-check for fault codes. If there are no fault codes,
perform TEST 2A - VERIFICATION TEST . If fault code(s) return, perform
TEST 1A - VERIFICATION OF THE COMPLAINT .
Fig. 7: Test 3A - Location of 7-Way Connector
Page 651 of 1378
\003
EN G IN E R EM OVA L - 6 -C YL
1988 J e ep C hero ke e
1988 ENGINES
Jeep - Engine Removal - 6-Cylinder
Cherokee, Comanche, Wagoneer, Wrangler
6-CYLINDER ENGINES
4.0L
1) Scribe hinge locations, remove engine compartment light
(if equipped) and remove hood. Disconnect battery cables and remove
battery. Drain cooling system.
2) Disconnect wire connectors from alternator, ignition coil
and distributor. Disconnect oil pressure sender wire, starter wires
and fuel injector wiring harness (if equipped). Detach 2 fuel pipe
quick connect couplings at left inner fender panel. Disconnect engine
ground strap and remove air cleaner.
3) Disconnect the vacuum purge hose at fuel vapor canister
tee. Disconnect wire from idle speed actuator and oxygen sensor.
Detach throttle cable from bracket and disconnect throttle valve rod
at bellcrank. Remove upper and lower radiator hoses.
4) On automatic transmission models, disconnect the
transmission fluid cooler tubing. On all models, remove fan shroud and
radiator. Remove fan and spacer or Tempatrol fan assembly. Hold fan
pulley to water pump flange using 5/16" x 1/2" SAE capscrew while
crankshaft is rotated.
5) Disconnect cruise control cable (if equipped). Disconnect\
wires from starter motor solenoid and disconnect CEC system harness.
Remove power brake vacuum check valve from booster (if equipped).
6) Disconnect power steering hoses from steering gear (if
equipped). Drain power steering pump reservoir and plug end of hoses.
Cap all fittings on steering gear and hoses. Raise and support
vehicle. Remove starter. Remove flywheel housing access cover.
7) Remove upper and loosen lower bellhousing-to-engine bolts.
Attach lifting equipment to engine. Raise engine off front mounts.
Place support under bellhousing. Remove remaining bellhousing-to-
engine bolts. Lift engine out of engine compartment.
4.2L
1) Remove battery and drain cooling system. Remove air
cleaner and engine compartment light from hood. Scribe hinge location
and remove hood. Disconnect and plug front fuel line at pump and fuel
return line at frame.
2) Disconnect heater hoses at heater. Label and disconnect
all wiring, lines, linkage and hoses at engine. Remove vacuum switch
assembly bracket from cylinder head cover. Remove both radiator hoses
and automatic transmission oil lines (if equipped) at radiator. Remove\
radiator and shroud.
3) Remove fan and spacer. Use 5/16" x 1/2" SAE bolt to hold
fan pulley to water pump flange. Remove starter and disconnect engine
ground strap. Remove engine mount-to-bracket nuts. Disconnect exhaust
pipe at manifold.
4) Discharge A/C system (if equipped). Disconnect and plug
hose or port openings at compressor. Disconnect hoses at power
steering gear and drain reservoir. Remove power brake vacuum check
valve. Remove bracket bolt for automatic transmission filler tube (if
equipped).
5) Lift and support vehicle. On models with automatic
Page 964 of 1378
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Check Seat Belt Webbing and Release Mechanisms
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Check Parking Brake Operation
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Check Shift/Clutch Interlock Operation
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Lubricate Weatherstripping with Silicone
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Lubricate Door Hinges
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Lubricate Door Locks
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Rotate Tires and Adjust Air Pressure
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Engine Oil
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Oil Filter
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Automatic Transmission Fluid, Filter and Adjust Bands
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Lubrication Specifications
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Application Specification
Automatic Transmission .......................... Dexron-IIE ATF
Brake Master Cylinder .......... DOT 3 (SAE J-1703F) Brake Fluid
Engine Coolant ........... Alugard 340-2 & Water (50/50 Mixture)
Engine Oil (
1)
Gasoline Engine
Temperature Range
Above 30
F (-1
C) ........ SAE 20W-40 Or 20W-50 API SH/CD
Above 0
F (-18
C) ......... SAE 10W-30 Or 10W-40 API SH/CD
Less Than 60
F (16
C) ............... SAE 5W-30 API SH/CD
Drive Axles ................................ SAE 75W-90 API GL-5
Drive Axles (Trac-Lok) (
2) ................ SAE 80W-140 API GL-5
Drive Axles (Trailer Towing) .............. SAE 80W-140 API GL-5
Hydraulic Clutch ............... DOT 3 (SAE J-1703F) Brake Fluid
Manual Transmission ........................ SAE 75W-90 API GL-5
Parking Brake Cable Guides ................. NLGI Grade 2, GC-LB
Door & Hood Hinges ............................ Light Engine Oil
Manual Steering Box ............... Multi-Purpose NLGI Grade 2EP
Power Steering Pump ....................... Power Steering Fluid
Transfer Case ................................... Dexron-IIE ATF
Brake Caliper Bushings ........ GE 661 or DOW 111 Silicone Grease
Caliper Slide Pins ........... GE 661 or DOW 111 Silicone Grease
Wheel Bearings .................. Multi-Purpose NLGI Grade GC-LB
Drive Shaft U-Joints .............. Multi-Purpose NLGI Grade 2EP
Steering Linkage (
4)( 5) .................... NLGI Grade 2, GC-LB
Ball Joints (
4)( 6) ......................... NLGI Grade 2, GC-LB
Weatherstrip .......................... Silicone Spray Lubricant
Wheel Lug Nut Torque ...................... 95 ft. lbs. (129 N.m)
Page 966 of 1378
![JEEP CHEROKEE 1988 Service Repair Manual 22,500 MILE (36,000 KM) SERVICE
22,500 MILE (36,000 KM) SERVICE \
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22,500 MILE (36,000 KM) SERVICE
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Verify Last Major Service Was Performed
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Check Fluid Levels
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Check Fuel Lines, Connections and Valves (CNG Models)
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Check Cooling System Hoses and Clamps
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Check Exhaust System & Heat Shielding
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Lube Parking Brake Ratio Lever Pivot
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Lube Manual Gearshift Control (4WD Transfer Case)
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Inspect C/V Joint boots (4WD)
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Inspect Underside of Vehicle (Bolts & Threaded Fasteners)
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Check/Lube Manual Steering Gear
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Check Drive Shaft Seals
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Lubricate Ball Joints, Steering Linkage & Suspension
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Lube Drive Shaft U-Joints and Slip Splines
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Lube Front Axle Drive Joint and Pivot Bearings (4WD)
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Inspect/Repack Front Wheel Bearings (2WD Models)
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Inspect Front Brake Pads & Rotors
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Lubricate Caliper Slide Rails
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Inspect Rear Brake Linings & Drums
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Inspect Brake System Hoses & Lines
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Inspect Shocks for Leakage
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Inspect Tire Wear Pattern
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Rotate Tires and Adjust Air Pressure (Including Spare)
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Replace
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Engine Oil
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Oil Filter
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Lubrication Specifications
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Application Specification
Automatic Transmission .......................... Dexron-IIE ATF
Brake Master Cylinder .......... DOT 3 (SAE J-1703F) Brake Fluid
Page 971 of 1378
Manual Transmission ...................................... 4.9
2.8L
Automatic Transmission ................................... 5.8
Manual Transmission ...................................... 5.1
4.0L
Automatic Transmission ................................... 5.7
Manual Transmission ...................................... 5.0
(
1) - Add .8 hr. for vehicles equipped with 4WD.
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37,500 MILE (60,000 KM) SERVICE
37,500 MILE (60,000 KM) SERVICE \
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Service Or Inspect
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Verify Last Major Service Was Performed
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Check Fluid Levels
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Check Fuel Lines, Connections
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Check Cooling System Hoses and Clamps
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Check Exhaust System & Heat Shielding
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Inspect Brake System
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Inspect C/V Joint boots (4WD)
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Inspect Underside of Vehicle (Bolts & Threaded Fasteners)
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Check/Lube Manual Steering Gear
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Check Drive Shaft Seals
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Lubricate Ball Joints, Steering Linkage & Suspension
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Lube Drive Shaft U-Joints and Slip Splines
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Lube Front Axle Drive Joint and Pivot Bearings (4WD)
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Rotate Tires and Adjust Air Pressure (Including Spare)
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Replace
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Engine Oil
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Oil Filter, if it has not been changed in the last 12 months
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Manual Transmission Fluid
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Automatic Transmission Fluid, Filter and Adjust Bands
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Transfer Case Fluid
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Application Specification
Automatic Transmission .......................... Dexron-IIE ATF
Page 974 of 1378
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Lubricate Ball Joints, Steering Linkage & Suspension
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Lube Drive Shaft U-Joints and Slip Splines
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Lube Front Axle Drive Joint and Pivot Bearings (4WD)
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Lube Parking Brake Ratio Lever Pivot
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Lube Manual Gearshift Control (4WD Transfer Case)
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Inspect/Repack Front Wheel Bearings (2WD Models)
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Inspect Front Brake Pads & Rotors
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Lubricate Caliper Slide Rails
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Inspect Rear Brake Linings & Drums
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Inspect Brake System Hoses & Lines
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Inspect Shocks for Leakage
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Inspect Tire Wear Pattern
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Lubricate Weatherstripping with Silicone
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Lubricate Door Hinges
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Lubricate Door Locks
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Check Body Drain Holes
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Rotate Tires and Adjust Air Pressure
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Replace
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Engine Oil
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Oil Filter
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Automatic Transmission Fluid, Filter and Adjust Bands
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Flush and Fill Engine Coolant, if not done in last 36 months
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Lubrication Specifications
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Application Specification
Automatic Transmission .......................... Dexron-IIE ATF
Brake Master Cylinder .......... DOT 3 (SAE J-1703F) Brake Fluid
Engine Coolant ........... Alugard 340-2 & Water (50/50 Mixture)
Engine Oil (
1)
Gasoline Engine
Temperature Range
Above 30
F (-1
C) ........ SAE 20W-40 Or 20W-50 API SH/CD
Above 0
F (-18
C) ......... SAE 10W-30 Or 10W-40 API SH/CD
Less Than 60
F (16
C) ............... SAE 5W-30 API SH/CD
Drive Axles ................................ SAE 75W-90 API GL-5
Page 978 of 1378
Fuel Tank
Standard .................................. 13.5 Gals. (51.1L)
Optional .................................... 20 Gals. (75.7L)
Manual Transmission (
3)
AX4 (AISIN) .................................. 7.4 Pts. (3.5L) \
T4 (Borg-Warner) ............................. 3.9 Pts. (1.8L) \
AX5 (AISIN) .................................. 7.0 Pts. (3.3L) \
T5 (Borg-Warner) ............................. 4.5 Pts. (2.1L) \
Transfer Case
1985-86
Selec-Trac (229 Full-Time) ................. 6.0 Pts. (2.8L) \
Command-Trac (Part-Time 207) ............... 4.5 Pts. (2.1L) \
1987
Selec-Trac ................................. 2.5 Pts. (1.2L)
Command-Trac ............................... 2.2 Pts. (1.0L)
1988
Selec-Trac ................................. 3.0 Pts. (1.4L)
Command-Trac ............................... 2.2 Pts. (1.0L)
Drive Axles (
3)
Front ........................................ 2.5 Pts. (1.2L)
Front (Disconnect Housing) .................. 5.0 Ozs. (0.15L) \
Rear ......................................... 2.5 Pts. (1.2L)
Rear (Trac-Lok) (
4) .......................... 2.5 Pts. (1.2L)
(
1) - Capacities are recommended or calculated levels. Always use
dipstick (if available) to measure level.
(
2) - Includes 2.3 qts. for coolant recovery bottle.
(
3) - Fill to bottom of filler plug hole.
(
4) - Add 4 ozs. (118 ml) of Limited-Slip differential lubricant
additive first, then add new fluid.
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60,000 MILE (96,000 KM) SERVICE
60,000 MILE (96,000 KM) SERVICE \
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Service Or Inspect
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Verify Last Major Service Was Performed
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Check Fluid Levels
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Check Cooling System Hoses and Clamps
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Check Coolant Strength
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Check Accessory Drive Belts
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Check Exhaust System & Heat Shielding
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Clean Battery and Battery Terminals
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Clean and Lubricate Crankcase Inlet Air Cleaner
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Inspect Brake System
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Inspect Exhaust System
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Adjust Drive Belt Tension
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Page 979 of 1378
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Choke Linkage
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Ignition Timing
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Lubricate Manifold Heat Control Valve (if equipped)
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Clean PCV Breather (if equipped)
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Clean EGR Passages (if equipped)
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Inspect C/V Joint boots (4WD)
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Inspect Underside of Vehicle (Bolts & Threaded Fasteners)
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Check/Lube Manual Steering Gear
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Check Drive Shaft Seals
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Lubricate Ball Joints, Steering Linkage & Suspension
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Lube Drive Shaft U-Joints and Slip Splines
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Lube Front Axle Drive Joint and Pivot Bearings (4WD)
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Inspect Front Wheel Bearings (4WD)
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Suspension Bushings, Springs, Arms & Rear Jounce Bumpers
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Parking Brake System
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Inspect Shocks for Leakage
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Inspect Tire Wear Pattern
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Rotate Tires and Adjust Air Pressure (Including Spare)
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Replace
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Engine Oil
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Oil Filter
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Spark Plugs
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Ignition Cables
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Distributor Cap and Rotor
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Air Filter Element
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EGR Valve & Tube (1987-92)
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Vacuum Operated Emission Components (1987-92)
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PCV Valve (
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Drive Belt (V-Type) (
2)
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Flush and Fill Engine Coolant, if not done in last 24 months
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Automatic Transmission Fluid, Filter and Adjust Bands
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Accessory Drive Belts
Page 980 of 1378
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Fuel Filter](/img/16/57037/w960_57037-979.png "JEEP CHEROKEE 1988 Service Repair Manual \b\
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Fuel Filter")
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Fuel Filter
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Emission System Vacuum Hoses
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Ignition Wires
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Distributor Cap & Rotor
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Battery
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(
1) - Replacement is recommended by Chrysler at this time, but it
is not required to maintain the warranty on the PCV valve.
(
2) - Check and replace as needed.
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Lubrication Specifications
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Application Specification
Automatic Transmission .......................... Dexron-IIE ATF
Brake Master Cylinder .......... DOT 3 (SAE J-1703F) Brake Fluid
Engine Coolant ........... Alugard 340-2 & Water (50/50 Mixture)
Engine Oil (
1)
Gasoline Engine
Temperature Range
Above 30
F (-1
C) ........ SAE 20W-40 Or 20W-50 API SH/CD
Above 0
F (-18
C) ......... SAE 10W-30 Or 10W-40 API SH/CD
Less Than 60
F (16
C) ............... SAE 5W-30 API SH/CD
Drive Axles ................................ SAE 75W-90 API GL-5
Drive Axles (Trac-Lok) (
2) ................ SAE 80W-140 API GL-5
Drive Axles (Trailer Towing) .............. SAE 80W-140 API GL-5
Hydraulic Clutch ............... DOT 3 (SAE J-1703F) Brake Fluid
Manual Transmission ........................ SAE 75W-90 API GL-5
Parking Brake Cable Guides ................. NLGI Grade 2, GC-LB
Door & Hood Hinges ............................ Light Engine Oil
Manual Steering Box ............... Multi-Purpose NLGI Grade 2EP
Power Steering Pump ....................... Power Steering Fluid
Transfer Case ................................... Dexron-IIE ATF
Brake Caliper Bushings ........ GE 661 or DOW 111 Silicone Grease
Caliper Slide Pins ........... GE 661 or DOW 111 Silicone Grease
Wheel Bearings .................. Multi-Purpose NLGI Grade GC-LB
Drive Shaft U-Joints .............. Multi-Purpose NLGI Grade 2EP
Steering Linkage (
4)( 5) .................... NLGI Grade 2, GC-LB
Ball Joints (
4)( 6) ......................... NLGI Grade 2, GC-LB
Weatherstrip .......................... Silicone Spray Lubricant
Wheel Lug Nut Torque ...................... 95 ft. lbs. (129 N.m)
(
1) - SAE 10W-30 SH/CD is preferred.
(
2) - Add 4 ozs. (118 ml) of Limited-Slip differential lubricant
additive when changing fluid.
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3) - For vehicles operating under heavy-duty towing conditions,
use SAE 75W-140 Synthetic lube.
NOTE: Before using SAE 75W-140 Synthetic the old fluid must
be DRAINED and FLUSHED with clean mineral based axle
lubricant. Then refill with new synthetic lube.
(
4) - Use low pressure grease gun to prevent seal damage.
(
5) - Fill until lubricant squeezes out from the base of seals.
(
6) - Fill ball joint until seal starts to swell.
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Fluid Capacities
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Application ( 1) Quantity
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![JEEP CHEROKEE 1988 Service Repair Manual \
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Service Or Inspect](/img/16/57037/w960_57037-981.png "JEEP CHEROKEE 1988 Service Repair Manual \
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Service Or Inspect")
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Service Or Inspect
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Verify Last Major Service Was Performed
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Check Fluid Levels
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Check Fuel Lines, Connections
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Check Cooling System Hoses and Clamps
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Check Exhaust System & Heat Shielding
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Inspect C/V Joint boots (4WD)
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Inspect Underside of Vehicle (Bolts & Threaded Fasteners)
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Check/Lube Manual Steering Gear
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Check Drive Shaft Seals
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Lubricate Ball Joints, Steering Linkage & Suspension
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Lube Drive Shaft U-Joints and Slip Splines
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Lube Front Axle Drive Joint and Pivot Bearings (4WD)
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Lube Parking Brake Ratio Lever Pivot
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Lube Manual Gearshift Control (4WD Transfer Case)
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Inspect/Repack Front Wheel Bearings (2WD Models)
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Inspect Front Brake Pads & Rotors
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Lubricate Caliper Slide Rails
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Inspect Rear Brake Linings & Drums
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Inspect Brake System Hoses & Lines
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Inspect Shocks for Leakage
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Inspect Tire Wear Pattern
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Rotate Tires and Adjust Air Pressure (Including Spare)
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Replace
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Engine Oil
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Oil Filter, if it has not been changed in the last 12 months
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Lubrication Specifications
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Application Specification
Automatic Transmission .......................... Dexron-IIE ATF
Brake Master Cylinder .......... DOT 3 (SAE J-1703F) Brake Fluid
Engine Coolant ........... Alugard 340-2 & Water (50/50 Mixture)
Engine Oil (
1)
Gasoline Engine
Temperature Range