Technical Service Bulletins

• 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
  • Use Of Recycled Coolant Caution (07-51-90)
  • Difficulty Removing The Ignition Key (21-51-89 REV. A)
  • 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)
  • 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)
• Cooling System (Mechanical)
  • 4.0L Head Gasket Oil Leak - New Cylinder Head Gasket (09-11-92)
  • Use Of Recycled Coolant Caution (07-51-90)
  • 4.0L Eng Fan Scrape Noise ACCEL - New Fan Shroud/Fan (I.S. NO. 30E, JUN. 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
  • 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)
• 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)
  • 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 Lights
  • Cruise/Turn/Wiper Lever Updated R & R (I.S. NO. 51E, SEP. 85)
• Front Suspension
  • Suspension Bump/Bang Noise When Cold - Diagnosis (02-51-89)
  • Popping Noise From Track Bar\Bracket & Torque Spec (02-55-88)
  • New Rear Leaf Spring & Height Sensing Valve Assembly (02-51-88)
• Gauges & Instrument Panels
  • Speedometer Erratic/Noisy - Cable Routing/Alignment (08-53-89)
• Headlights
  • Cruise/Turn/Wiper Lever Updated R & R (I.S. NO. 51E, SEP. 85)
• 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)
  • Low Idle Speed: Service Tests W/ Ms 1700 Tester (I.S. NO. 39E, OCT. 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)
  • V6 Oil Filter Adapter Leak Diagnosis/Repair (I.S. NO. 4E, AUG. 86)
• Manual Trans
  • 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)
  • 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)
  • Low Idle Speed: Service Tests W/ Ms 1700 Tester (I.S. NO. 39E, OCT. 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)
• Paint & Coatings
  • 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)
  • New Rear Leaf Spring & Height Sensing Valve Assembly (02-51-88)
• 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)
  • 2.5L Eng Steering Column Vibration At Idle - Damper (19-53-89)
• 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)
  • Low Idle Speed: Service Tests W/ Ms 1700 Tester (I.S. NO. 39E, 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)
  • Distributor Revised R & R (I.S. NO. 1E, APR. 87)
• Transfer Case
  • Axle Seal Leak - Oversize Axle Tube Seal Bore (03-51-88)
  • New Right Front Axle Shaft Seal Installation (02-52-88)
• Vacuum Pumps/Lines/Tanks/Water Trap
  • V6 Oil Filter Adapter Leak Diagnosis/Repair (I.S. NO. 4E, AUG. 86)
• 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
  • Vent Window Water Leak - Replace Vent Window (23-58-90)
• Wiper/Washer Systems
  • Intermittent Wiper Function - Replace Wiper Motor (08-55-88)
  • Cruise/Turn/Wiper Lever Updated R & R (I.S. NO. 51E, SEP. 85)