Check Drive Shaft Seals
\b\
\
\
\
\
\
\
Lubricate Ball Joints, Steering Linkage & Suspension
\b\
\
\
\
\
\
\
Lube Drive Shaft U-Joints and Slip Splines
\b\
\
\
\
\
\
\
Lube Front Axle Drive Joint and Pivot Bearings (4WD)
\b\
\
\
\
\
\
\
Lubricate Weatherstripping with Silicone
\b\
\
\
\
\
\
\
Lubricate Door Hinges
\b\
\
\
\
\
\
\
Lubricate Door Locks
\b\
\
\
\
\
\
\
Check Body Drain Holes
\b\
\
\
\
\
\
\
Rotate Tires and Adjust Air Pressure
\
\
\
\
\
\
\
Replace
\
\
\
\
\
\
\
Engine Oil
\b\
\
\
\
\
\
\
Oil Filter
\b\
\
\
\
\
\
\
Manual Transmission Fluid
\b\
\
\
\
\
\
\
Automatic Transmission Fluid, Filter and Adjust Bands
\b\
\
\
\
\
\
\
Transfer Case Fluid
\b\
\
\
\
\
\
\
Flush and Fill Engine Coolant, if not done in last 24 months
\
\
\
\
\
\
\
Lubrication Specifications
\
\
\
\
\
\
\
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)
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.
\
\
\
\
\
\
\
\f
90,000 MILE (144,000 KM) SERVICE
90,000 MILE (144,000 KM) SERVICE \
\
\
\
\
\
\
Service Or Inspect
\
\
\
\
\
\
\
Verify Last Major Service Was Performed
\b\
\
\
\
\
\
\
Check Fluid Levels
\b\
\
\
\
\
\
\
Check Fuel Lines, Connections
\b\
\
\
\
\
\
\
Check Cooling System Hoses and Clamps
\b\
\
\
\
\
\
\
Check Coolant Strength
\b\
\
\
\
\
\
\
Clean Battery and Battery Terminals
\b\
\
\
\
\
\
\
Accessory Drive Belts
\b\
\
\
\
\
\
\
Clean Choke Linkage
\b\
\
\
\
\
\
\
Check Exhaust System & Heat Shielding
\b\
\
\
\
\
\
\
Check Operation of Horn, Wipers/Washers & All Exterior Lights
\b\
\
\
\
\
\
\
Inspect Condition of Wiper Blades
\b\
\
\
\
\
\
\
Check Headlight Alignment
\b\
\
\
\
\
\
\
Check Seat Belt Webbing and Release Mechanisms
\b\
\
\
\
\
\
\
Check Parking Brake Operation
\b\
\
\
\
\
\
\
Check Shift/Clutch Interlock Operation
\b\
\
\
\
\
\
\
Adjust Drive Belt Tension
\b\
\
\
\
\
\
\
Inspect C/V Joint boots (4WD)
\b\
\
\
\
\
\
\
Inspect Underside of Vehicle (Bolts & Threaded Fasteners)
\b\
\
\
\
\
\
\
Check/Lube Manual Steering Gear
\b\
\
\
\
\
\
\
Check Drive Shaft Seals
\b\
\
\
\
\
\
\
Lubricate Ball Joints, Steering Linkage & Suspension
\b\
\
\
\
\
\
\
Lube Drive Shaft U-Joints and Slip Splines
\b\
\
\
\
\
\
\
Lube Front Axle Drive Joint and Pivot Bearings (4WD)
\b\
\
\
\
\
\
\
Lube Parking Brake Ratio Lever Pivot
\b\
\
\
\
\
\
\
Lube Manual Gearshift Control (4WD Transfer Case)
\b\
\
\
\
\
\
\
Inspect/Repack Front Wheel Bearings (2WD Models)
\b\
\
\
\
\
\
\
Inspect Front Brake Pads & Rotors
\b\
\
\
\
\
\
\
Lubricate Caliper Slide Rails
\b\
\
\
\
\
\
\
Inspect Rear Brake Linings & Drums
\b\
\
\
\
\
\
\
Inspect Brake System Hoses & Lines
\b\
\
\
\
\
\
\
Inspect Shocks for Leakage
\b\
\
\
\
\
\
\
Inspect Tire Wear Pattern
\b\
\
\
\
\
\
\
Lubricate Weatherstripping with Silicone
\b\
\
\
\
\
\
\
Lubricate Door Hinges
\b\
\
\
\
\
\
\
Lubricate Door Locks
\b\
\
\
\
\
\
\
Check Body Drain Holes
\b\
\
\
\
\
\
\
Rotate Tires and Adjust Air Pressure
\
\
\
\
\
\
\
Replace
\
\
\
\
\
\
\
Engine Oil
\b\
\
\
\
\
\
\
Oil Filter
\b\
\
\
\
\
\
\
Air Filter Element
\b\
\
\
\
\
\
\
Fuel Filter
\b\
\
\
\
\
\
\
Spark Plugs
\b\
\
\
\
\
\
\
Automatic Transmission Fluid, Filter and Adjust Bands
\b\
\
\
\
\
\
\
PCV Filter
\b\
\
\
\
\
\
\
PCV Valve (
1) ( 2)
\b\
\
\
\
\
\
\
Drive Belt (V-Type) (
2) ( 3)
\
\
\
\
\
\
\
(
1) - Replacement is recommended by Chrysler at this time, but it
is not required to maintain the warranty on the PCV valve.
(
2) - Not required, if belt or PCV Valve was previously replaced
(
3) - Check and replace as needed.
\
\
\
\
\
\
\
Lubrication Specifications
\
\
\
\
\
\
\
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
Clean Battery and Battery Terminals
\b\
\
\
\
\
\
\
Inspect Brake System
\b\
\
\
\
\
\
\
Check Operation of Horn, Wipers/Washers & All Exterior Lights
\b\
\
\
\
\
\
\
Inspect Condition of Wiper Blades
\b\
\
\
\
\
\
\
Check Headlight Alignment
\b\
\
\
\
\
\
\
Check Seat Belt Webbing and Release Mechanisms
\b\
\
\
\
\
\
\
Check Parking Brake Operation
\b\
\
\
\
\
\
\
Check Shift/Clutch Interlock Operation
\b\
\
\
\
\
\
\
Inspect C/V Joint boots (4WD)
\b\
\
\
\
\
\
\
Inspect Underside of Vehicle (Bolts & Threaded Fasteners)
\b\
\
\
\
\
\
\
Check/Lube Manual Steering Gear
\b\
\
\
\
\
\
\
Check Drive Shaft Seals
\b\
\
\
\
\
\
\
Lubricate Ball Joints, Steering Linkage & Suspension
\b\
\
\
\
\
\
\
Lube Drive Shaft U-Joints and Slip Splines
\b\
\
\
\
\
\
\
Lube Front Axle Drive Joint and Pivot Bearings (4WD)
\b\
\
\
\
\
\
\
Inspect Front Wheel Bearings (4WD)
\b\
\
\
\
\
\
\
Lubricate Weatherstripping with Silicone
\b\
\
\
\
\
\
\
Lubricate Door Hinges
\b\
\
\
\
\
\
\
Lubricate Door Locks
\b\
\
\
\
\
\
\
Check Body Drain Holes
\b\
\
\
\
\
\
\
Rotate Tires and Adjust Air Pressure
\
\
\
\
\
\
\
Replace
\
\
\
\
\
\
\
Engine Oil
\b\
\
\
\
\
\
\
Oil Filter
\b\
\
\
\
\
\
\
Flush and Fill Engine Coolant, if not done in last 24 months
\
\
\
\
\
\
\
Lubrication Specifications
\
\
\
\
\
\
\
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
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.
\
\
\
\
\
\
\
\f
112,500 MILE (180,000 KM) SERVICE
112,500 MILE (180,000 KM) SERVICE \
\
\
\
\
\
\
Service Or Inspect
\
\
\
\
\
\
\
Verify Last Major Service Was Performed
\b\
\
\
\
\
\
\
Check Fluid Levels
\b\
\
\
\
\
\
\
Check Cooling System Hoses and Clamps
\b\
\
\
\
\
\
\
Check Coolant Strength
\b\
\
\
\
\
\
\
Clean Battery and Battery Terminals
\b\
\
\
\
\
\
\
Check Exhaust System & Heat Shielding
\b\
\
\
\
\
\
\
Check Operation of Horn, Wipers/Washers & All Exterior Lights
\b\
\
\
\
\
\
\
Inspect Condition of Wiper Blades
\b\
\
\
\
\
\
\
Check Headlight Alignment
\b\
\
\
\
\
\
\
Check Seat Belt Webbing and Release Mechanisms
\b\
\
\
\
\
\
\
Check Parking Brake Operation
\b\
\
\
\
\
\
\
Check Shift/Clutch Interlock Operation
\b\
\
\
\
\
\
\
Inspect C/V Joint boots (4WD)
\b\
\
\
\
\
\
\
Inspect Underside of Vehicle (Bolts & Threaded Fasteners)
\b\
\
\
\
\
\
\
Check/Lube Manual Steering Gear
\b\
\
\
\
\
\
\
Check Drive Shaft Seals
\b\
\
\
\
\
\
\
Lubricate Ball Joints, Steering Linkage & Suspension
\b\
\
\
\
\
\
\
Lube Drive Shaft U-Joints and Slip Splines
\b\
\
\
\
\
\
\
Lube Front Axle Drive Joint and Pivot Bearings (4WD)
\b\
\
\
\
\
\
\
Lube Parking Brake Ratio Lever Pivot
\b\
\
\
\
\
\
\
Lube Manual Gearshift Control (4WD Transfer Case)
\b\
\
\
\
\
\
\
Inspect/Repack Front Wheel Bearings (2WD Models)
\b\
\
\
\
\
\
\
Inspect Front Brake Pads & Rotors
\b\
\
\
\
\
\
\
Lubricate Caliper Slide Rails
\b\
\
\
\
\
\
\
Inspect Rear Brake Linings & Drums
\b\
\
\
\
\
\
\
Inspect Brake System Hoses & Lines
\b\
\
\
\
\
\
\
Inspect Shocks for Leakage
\b\
\
\
\
\
\
\
Inspect Tire Wear Pattern
\b\
\
\
\
\
\
\
Lubricate Weatherstripping with Silicone
\b\
\
\
\
\
\
\
Lubricate Door Hinges
\b\
\
\
\
\
\
\
Lubricate Door Locks
\b\
\
\
\
\
\
\
Check Body Drain Holes
\b\
\
\
\
\
\
\
Rotate Tires and Adjust Air Pressure
\
\
\
\
\
\
\
Replace
\
\
\
\
\
\
\
Engine Oil
\b\
\
\
\
\
\
\
Oil Filter, if it has not been changed in the last 12 months
\b\
\
\
\
\
\
\
Manual Transmission Fluid
\b\
\
\
\
\
\
\
Automatic Transmission Fluid, Filter and Adjust Bands
\b\
\
\
\
\
\
\
Transfer Case Fluid
\b\
\
\
\
\
\
\
Flush and Fill Engine Coolant, if not done in last 24 months
\
\
\
\
\
\
\
Lubrication Specifications
\
\
\
\
\
\
\
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
\003
SEA TS - P O W ER
1988 J e ep C hero ke e
1988 Power Seats
JEEP
Cherokee, Wagoneer,
Grand Wagoneer
DESCRIPTION
A 3 armature permanent magnet reversible motor is coupled
through cables to rack and pinion assemblies, located in the tracks.
This system provides 6 different movement directions. Circuit is
protected by a 30-amp circuit breaker on the fuse block.
TESTING
PRELIMINARY CHECKS
Ensure battery is fully charged and all electrical
connections are clean and tight. Turn on dome light. Apply switch to
the inoperative position. If dome light dims, seat motion is
attempting to function, indicating mechanical failure. Check and
repair as necessary. If dome light does not dim, proceed with the
following tests.
HARNESS VOLTAGE
Disconnect switch harness connector, located under seat.
Connect ground lead of test light to terminal No. 2. Touch other lead
of test light to terminal No. 1. See Fig. 1. If test light comes on,
circuit is good. If test light does not come on, check circuit breaker
and harness. If harness and circuit breaker checks good, perform drive
motors check.
Fig. 1: Seat Switch Terminal Identification
Courtesy of Chrysler Motors.
DRIVE MOTORS
SER VIC E IN DIC ATO R & W AR NIN G L IG HTS
1988 J e ep C hero ke e
1984-92 MAINTENANCE
AMC/Jeep/Eagle Service Indicator & Warning Lights
Jeep; Cherokee, Wagoneer
SERVICE INDICATOR & WARNING LIGHTS
BRAKE WARNING LIGHT
If the light stays on when the parking brake is off, it
indicates a possible brake system fluid leak or low pressure level.
LOCK INDICATOR LIGHT (1984-87)
Indicates that Selec-Trac transfer case is in part time 4WD
(high or low range).
FULL TIME 4WD INDICATOR LIGHT
Indicates that Selec-Trac transfer case is in full-time 4WD
(4x4 FULL TIME).
PART TIME 4WD INDICATOR LIGHT
Indicates that Selec-Trac transfer case is in part time 4WD
(4x4 PART TIME or 4 LO) or that Command-Trac transfer case is in 4WD
(4H or 4L).
WATER IN FUEL LIGHT (TURBO DIESEL)
Indicates water has collected in the fuel filter and should
be drained immediately.
DIESEL WAIT LIGHT (TURBO DIESEL)
Illuminates during glow plugs warm-up cycle.
LOW FUEL WARNING LIGHT
Glows when approximately 2 gals. (7.6L) remain in fuel tank.
EMISSION MAINTENANCE INDICATOR LIGHT
Illuminates at approximately 82,500 miles to indicate
scheduled maintenance (or recommended maintenance on California
vehicles). Light will remain on until system is serviced and light is
reset.
CHECK ENGINE LIGHT
If this light illuminates and remains on while driving, it
indicates a potential engine control problem that needs service.
CHECK ANTI-LOCK LIGHT
Illuminates to indicate a self-check is in process at vehicle
start up. If light remains on after start-up or comes on and stays on