Technical Service Bulletins

A/C Compressor
- Turbo Diesel New A/C Compressor Strap/Pivot Bolt (I.S. NO. 35E, MAY. 87)
Anti-Theft Systems
- NOISEY Door Hinge - New Door Hinge Pin Service (23-62-91)
- Difficult Door Lock Button/Cylinder Binding (23-54-91)
- Outside Door Latch Button/Key Binding - Adjustment (23-57-89)
- Outer Front Door Panel Squeak: Replacement Procedure (23-54-88)
Automatic Trans
- New Front Output Seal & Oil Slinger For Transfer CAS (21-21-94)
- Use Of Recycled Coolant Caution (07-51-90)
- Difficulty Removing The Ignition Key (21-51-89 REV. A)
- Damaged PRNDL Indicator - Modify Carpet At Column (23-64-89)
- Axle Seal Leak - Oversize Axle Tube Seal Bore (03-51-88)
- New Right Front Axle Shaft Seal Installation (02-52-88)
- 4.0L Eng Aw4 Trans IRREG Shift - Reroute INJ Harness (I.S. NO. 2E, DEC. 87)
- New Uni-Directional Front Output Shaft Seal (I.S. NO. 60E, NOV. 87)
Auxiliary Emission Control Systems
- 4.0L Oil Leaks/High Consumption - Diagnosis/Repair (14-51-91)
- 4.OL Eng: Start & Stall & Driveway Die-Outs /New Ecu (18-54-89 REV. A)
- 4.2L Eng Fuel Feedback SYS Idle Mixture Adjustment (14-53-89)
- 4.0L: No Start, Hard Restart Or Engine Die-Out (18-51-88)
- 2.5L Low Idle Vibration - Ecu Circuit Jumper Harness (18-51-89)
- High Idle/Poor ACCEL - Adjust Injection System TPS (18-54-88)
- 4.0L Eng Fuel Pump Noisy - Ballast Resistor Kit (I.S. NO. 32E, OCT. 87)
- 4.0L Eng Idle Low/Stall - Injection System/Idle Adj (I.S. NO. 46E, OCT. 87)
- 2.64L TBI Hard Cold Start/Stall - Injector Diagnosis (I.S. NO. 1E, JUN. 87)
- 4.0L New Engine Family Codes - Emission Label Update (I.S. NO. 59E, MAY. 87)
Axle Shafts
- New Front Wheel Bearing Replacement Procedures (I.S. NO. 55E, APR. 87)
- Rear Axle Shaft And Axle Assembly Identification (I.S. NO. 18E, MAY. 86)
Charging Systems
- INOP Alt. Voltage Reg. - Modify I/P Wiring Harness (I.S. NO. 30E, APR. 87)
Communication Devices
- Rear Shoulder Belt Retrofit Kits (23-56-90)
Cooling System (Mechanical)
- 4.0L Head Gasket Oil Leak - New Cylinder Head Gasket (09-11-92)
- Use Of Recycled Coolant Caution (07-51-90)
- 2.1L Oil Cooler Noise - Cooler Lines/Check Ball R & R (I.S. NO. 38E, SEP. 87)
- 4.0L Eng Coolant Leak - Lower Radiator Hose Clamp (I.S. NO. 41E, SEP. 87)
- 4.0L Lower Radiator Hose Coolant Leak - Spring Clamp (I.S. NO. 41E, SEP. 87)
- 4.0L Eng Fan Scrape Noise ACCEL - New Fan Shroud/Fan (I.S. NO. 30E, JUN. 87)
- New Crankshaft Rear Main Bearing Oil Seal/Tool (I.S. NO. 25E, JUN. 87)
- 4.0 Radiator Hose Chafed - Modify Support Bracket (I.S. NO. 26E, MAR. 87)
- V6 Oil Filter Adapter Leak Diagnosis/Repair (I.S. NO. 4E, AUG. 86)
Cruise Control Systems
- Cruise/Turn/Wiper Lever Updated R & R (I.S. NO. 51E, SEP. 85)
Differentials & Drive Axles
- New Front Output Seal & Oil Slinger For Transfer CAS (21-21-94)
- Use Of Recycled Coolant Caution (07-51-90)
- Axle Seal Leak - Oversize Axle Tube Seal Bore (03-51-88)
- New Right Front Axle Shaft Seal Installation (02-52-88)
- New Front Wheel Bearing Replacement Procedures (I.S. NO. 55E, APR. 87)
- Rear Axle Shaft And Axle Assembly Identification (I.S. NO. 18E, MAY. 86)
Driveshaft & Universal Joints
- Rear Axle Shaft And Axle Assembly Identification (I.S. NO. 18E, MAY. 86)
Electronic Steering
- Front Wheel Alignment Revised Specifications (I.S. NO. 39E, AUG. 87)
Electronic Suspension
- Front Wheel Alignment Revised Specifications (I.S. NO. 39E, AUG. 87)
Engine Control Systems
- 4.OL Eng: Start & Stall & Driveway Die-Outs /New Ecu (18-54-89 REV. A)
- 4.2L Eng Fuel Feedback SYS Idle Mixture Adjustment (14-53-89)
- 4.0L: No Start, Hard Restart Or Engine Die-Out (18-51-88)
- 2.5L Low Idle Vibration - Ecu Circuit Jumper Harness (18-51-89)
- High Idle/Poor ACCEL - Adjust Injection System TPS (18-54-88)
- 4.0L Eng Fuel Pump Noisy - Ballast Resistor Kit (I.S. NO. 32E, OCT. 87)
- 4.0L Eng Idle Low/Stall - Injection System/Idle Adj (I.S. NO. 46E, OCT. 87)
- 2.64L TBI Hard Cold Start/Stall - Injector Diagnosis (I.S. NO. 1E, JUN. 87)
Exhaust
- 4.0L Eng Exhaust Manifold Leaks - Manifold/Gasket (11-51-91)
- 2.5L Eng Exhaust Leak - Replacement Manifold (11-52-90)
Exterior Body Panels
- Floor Plan Corrosion (23-026-02)
- Liftgate Latch Rattle: Revised Liftgate (23-16-93)
- 4.0L Eng Fuel Pump Noise - Pulse Damper Kit (14-51-90)
- Fuel Gauge/Reserve Incorrect - Replace Sender Unit (14-52-89)
- 4.0L Eng Fuel Pump Noise - Pump Ballast Resistor Kit (I.S. NO. 43E, SEP. 87)
Exterior Lights
- Cruise/Turn/Wiper Lever Updated R & R (I.S. NO. 51E, SEP. 85)
Frames, Subframes & Crossmembers
- Floor Plan Corrosion (23-026-02)
Front Suspension
- Suspension Bump/Bang Noise When Cold - Diagnosis (02-51-89)
- Popping Noise From Track Bar\Bracket & Torque Spec (02-55-88)
- Front Wheel Alignment Revised Specifications (I.S. NO. 39E, AUG. 87)
Fuel System
- 4.0L Eng No Start/Idle Flare - Diagnosis/Repair (I.S. NO. 45E, SEP. 87)
Fuses & Circuit Breakers
- Engine CROSSBODY Harness Fusible Link Open - Routing (I.S. NO. 27E, FEB. 87)
Gauges & Instrument Panels
- Speedometer Erratic/Noisy - Cable Routing/Alignment (08-53-89)
- Fuel Gauge/Reserve Incorrect - Replace Sender Unit (14-52-89)
- Instrument Cluster/Speedometer Cable Service/R & R (I.S. NO. 36E, MAY. 87)
- INOP Alt. Voltage Reg. - Modify I/P Wiring Harness (I.S. NO. 30E, APR. 87)
Headlights
- Cruise/Turn/Wiper Lever Updated R & R (I.S. NO. 51E, SEP. 85)
HVAC Control Systems
- 4.0L A/C Compressor Noise - Suction Side Hose R & R (I.S. NO. 34E, MAY. 87)
- Turbo Diesel New A/C Compressor Strap/Pivot Bolt (I.S. NO. 35E, MAY. 87)
Identification
- 4.0L New Engine Family Codes - Emission Label Update (I.S. NO. 59E, MAY. 87)
Ignition System
- 4.0L Eng No Start Condition At Freezing Temperatures (14-51-88)
- 4.0L Eng Ignition Cross Fire - Modify Distributor (18-53-88)
- No Start - Distributor Coil Wire Disengaging Warning (18-06-88)
- 4.0L Eng Distributor Oil Leak - Replacement Dist (I.S. NO. 40E, NOV. 87)
- 4.0L Eng Hard/No Start/Miss - Stator/TPS Diagnosis (I.S. NO. 42E, SEP. 87)
- 4.0L Rough/Shudder At 2000-3000 Rpm - Distributor (I.S. NO. 31E, APR. 87)
- Distributor Revised R & R (I.S. NO. 1E, APR. 87)
Interior/Exterior Trim
- Outer Front Door Panel Squeak: Replacement Procedure (23-54-88)
Interior/Illumination Lights
- Cruise/Turn/Wiper Lever Updated R & R (I.S. NO. 51E, SEP. 85)
Lubrication System
- 4.0L Head Gasket Oil Leak - New Cylinder Head Gasket (09-11-92)
- Use Of Recycled Coolant Caution (07-51-90)
- New "SG" Quality Engine Oil (10-51-89)
- New Crankshaft Rear Main Bearing Oil Seal/Tool (I.S. NO. 25E, JUN. 87)
- V6 Oil Filter Adapter Leak Diagnosis/Repair (I.S. NO. 4E, AUG. 86)
Manual Trans
- New Front Output Seal & Oil Slinger For Transfer CAS (21-21-94)
- Axle Seal Leak - Oversize Axle Tube Seal Bore (03-51-88)
- New Right Front Axle Shaft Seal Installation (02-52-88)
- M/T Drivetrain Gear Rattle/Sizzle - Insulator Kit (21-52-88)
- Ax5/Km132 Trans High Shift Effort - Shift Lever Boot (I.S. NO. 23E, JAN. 87)
- M/T Shift Lever New Installation Tool (I.S. NO. 48E, AUG. 86)
Mechanical
- 4.0L Head Gasket Oil Leak - New Cylinder Head Gasket (09-11-92)
- Eng Vibration/Noise On ACCEL - Left Eng Mount R & R (09-53-89)
- New "SG" Quality Engine Oil (10-51-89)
- 4.0L Eng No Start Condition At Freezing Temperatures (14-51-88)
- New Crankshaft Rear Main Bearing Oil Seal/Tool (I.S. NO. 25E, JUN. 87)
- V6 Oil Filter Adapter Leak Diagnosis/Repair (I.S. NO. 4E, AUG. 86)
Mechanical - Hydraulic
- Use Of Recycled Coolant Caution (07-51-90)
- Rear Brake Noise - Dampener Kit Installation (05-51-89)
- New Front Wheel Bearing Replacement Procedures (I.S. NO. 55E, APR. 87)
Mirrors
- Loose Outside Manual Mirror - New Set Screw (23-50-90)
- Outer Front Door Panel Squeak: Replacement Procedure (23-54-88)
- Electric Side Mirror Broken - Mirror Glass Kits (I.S. NO. 7E, SEP. 86)
Paint & Coatings
- Floor Plan Corrosion (23-026-02)
- Off Color Paint - Color Variance Chart Program (23-52-91)
Rear Suspension
- Suspension Bump/Bang Noise When Cold - Diagnosis (02-51-89)
- Popping Noise From Track Bar\Bracket & Torque Spec (02-55-88)
- Front Wheel Alignment Revised Specifications (I.S. NO. 39E, AUG. 87)
Seats
- Rear Shoulder Belt Retrofit Kits (23-56-90)
- Electric Side Mirror Broken - Mirror Glass Kits (I.S. NO. 7E, SEP. 86)
Starter
- 2.5L Starter Motor Service: New Replacement Motors (08-36-94)
- 2.1L Turbo Diesel New Glow Plug Relays (I.S. NO. 1E, MAY. 87)
Steering Column
- Difficulty Removing The Ignition Key (21-51-89 REV. A)
- Front Wheel Alignment Revised Specifications (I.S. NO. 39E, AUG. 87)
- Power Steering Gear Noise - New Intermediate Shaft (I.S. NO. 24E, MAR. 87)
Steering Linkage
- Front Wheel Alignment Revised Specifications (I.S. NO. 39E, AUG. 87)
Sun Roof/T-Top/Convertible Top
- Vent Window Water Leak - Replace Vent Window (23-58-90)
System
- 4.0L Head Gasket Oil Leak - New Cylinder Head Gasket (09-11-92)
- 4.0L Oil Leaks/High Consumption - Diagnosis/Repair (14-51-91)
- 4.OL Eng: Start & Stall & Driveway Die-Outs /New Ecu (18-54-89 REV. A)
- 4.2L Eng Fuel Feedback SYS Idle Mixture Adjustment (14-53-89)
- 4.0L: No Start, Hard Restart Or Engine Die-Out (18-51-88)
- 2.5L Low Idle Vibration - Ecu Circuit Jumper Harness (18-51-89)
- High Idle/Poor ACCEL - Adjust Injection System TPS (18-54-88)
- 4.0L Eng No Start Condition At Freezing Temperatures (14-51-88)
- 4.0L Eng Ignition Cross Fire - Modify Distributor (18-53-88)
- No Start - Distributor Coil Wire Disengaging Warning (18-06-88)
- 4.0L Eng Distributor Oil Leak - Replacement Dist (I.S. NO. 40E, NOV. 87)
- 4.0L Eng Fuel Pump Noisy - Ballast Resistor Kit (I.S. NO. 32E, OCT. 87)
- 4.0L Eng Idle Low/Stall - Injection System/Idle Adj (I.S. NO. 46E, OCT. 87)
- 4.0L Eng Hard/No Start/Miss - Stator/TPS Diagnosis (I.S. NO. 42E, SEP. 87)
- 4.0L Eng No Start/Idle Flare - Diagnosis/Repair (I.S. NO. 45E, SEP. 87)
- 2.64L TBI Hard Cold Start/Stall - Injector Diagnosis (I.S. NO. 1E, JUN. 87)
- New Crankshaft Rear Main Bearing Oil Seal/Tool (I.S. NO. 25E, JUN. 87)
- 4.0L New Engine Family Codes - Emission Label Update (I.S. NO. 59E, MAY. 87)
- 4.0L Rough/Shudder At 2000-3000 Rpm - Distributor (I.S. NO. 31E, APR. 87)
- Distributor Revised R & R (I.S. NO. 1E, APR. 87)
Transfer Case
- New Front Output Seal & Oil Slinger For Transfer CAS (21-21-94)
- 4WD Slow Shift Or Sticks In 4WD - Check Tire Size (21-55-88)
- Axle Seal Leak - Oversize Axle Tube Seal Bore (03-51-88)
- New Right Front Axle Shaft Seal Installation (02-52-88)
- No 4WD Shift - Shift Fork/Vacuum Motor/Vacuum Switch (I.S. NO. 44E, SEP. 87)
- NP231 NP242 Transfer Case Noise - New Linkage Bush (I.S. NO. 29E, APR. 87)
- Transfer Case Noise - Replace/Adjust Linkage Bushing (I.S. NO. 29E, APR. 87)
Vacuum Pumps/Lines/Tanks/Water Trap
- V6 Oil Filter Adapter Leak Diagnosis/Repair (I.S. NO. 4E, AUG. 86)
Wheel Alignment
- Front Wheel Alignment Revised Specifications (I.S. NO. 39E, AUG. 87)
Wheels & Tire System
- Tire Thump/Vibration - Flat-Spotting Diagnosis (22-52-89)
- New Right Front Axle Shaft Seal Installation (02-52-88)
- New Front Wheel Bearing Replacement Procedures (I.S. NO. 55E, APR. 87)
Window Motors & Regulators
- Liftgate Latch Rattle: Revised Liftgate (23-16-93)
- Vent Window Water Leak - Replace Vent Window (23-58-90)
- Electric Side Mirror Broken - Mirror Glass Kits (I.S. NO. 7E, SEP. 86)
Wiper/Washer Systems
- Rear Window Washer Leaks - Revised Procedure (23-51-90)
- Liftgate Washer Leak - Move Check Valve To Liftgate (23-56-89)
- Intermittent Wiper Function - Replace Wiper Motor (08-55-88)
- Cruise/Turn/Wiper Lever Updated R & R (I.S. NO. 51E, SEP. 85)
Wiring System (Data Link Connectors, Pwr Dist., Grnd Dist.)
- Engine CROSSBODY Harness Fusible Link Open - Routing (I.S. NO. 27E, FEB. 87)