1990 Jeep Wrangler

12 Technical Service Bulletins (TSBs)

TSB List for the 1990 Jeep Wrangler

Technical Service Bulletins (TSBs) for the 1990 Wrangler are official communications between Jeep & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.

  • ENGINE AND ENGINE COOLING
  • ENGINE AND ENGINE COOLING:COOLING SYSTEM
  • ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
  • ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
  • ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)
  • ELECTRICAL SYSTEM
  • ELECTRICAL SYSTEM:WIRING
  • STRUCTURE:FRAME AND MEMBERS
  • EQUIPMENT
  • EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

    • ENGINE AND ENGINE COOLING

    ENGINE AND ENGINE COOLING:COOLING SYSTEM

    • TSB #070397

      Date Announced:
      MAY 09, 1997
      NHTSA ID:
      #52963

      VARIOUS CAR OWNER'S HAVE EXPRESSED INTEREST IN USING ENGINE COOLANTS MADE WITH PROPYLENE GLYCOL INSTEAD OF ETHYLENE GLYCOL. *YC Read More »

    ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

    • TSB #RCL/617

      Date Announced:
      MAY 01, 1995
      NHTSA ID:
      #43047

      UNKNOWN Read More »

    • TSB #RCL/589

      Date Announced:
      NOV 01, 1994
      NHTSA ID:
      #37980

      HYDROCARBON AND CARBON MONOXIDE EMISSIONS LEVLS FOR THE ABOVE LISTED MODEL VEHICLES MAY EXCEED THE LIMITS ALLOWED BY CALIFORNIA EMISSIONS STANDARDS. Read More »

    ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

    • TSB #RCL/558

      Date Announced:
      APR 01, 1995
      NHTSA ID:
      #41032

      RECALL 558 - FAILURE OF THE OXYGEN SENSOR AND CATALYTIC CONVERTER MAY CAUSE A VEHICLE TO BE IN VIOLATION OF CALIFORNIA EMISSIONS STANDARDS. Read More »

    • TSB #RCL/557

      Date Announced:
      DEC 01, 1994
      NHTSA ID:
      #39014

      IT HAS BEEN DETERMINED THAT THE 1990 JEEP VEHICLE, EQUIPPED WITH THE 2.5L ENGINE, MAY BE IN VIOLATION OF FEDERAL EMISSIONS STANDARDS. Read More »

    ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)

    • TSB #RCL647

      Date Announced:
      OCT 01, 1995
      NHTSA ID:
      #46153

      APPLIES TO VEHICLES EQUIPPED WITH A 4.2L ENGINE AND FEDERAL HIGH ALTITUDE EMISSION CONTROL SYSTEM. FUEL VAPORS MAY CAUSE DETERIORATION OF THE PCV HARNESS ASSEMBLY. Read More »

    ELECTRICAL SYSTEM

    ELECTRICAL SYSTEM:WIRING

    • TSB #080600

      Date Announced:
      FEB 25, 2000
      NHTSA ID:
      #609995

      THIS BULLETIN PROVIDES A REVISED WIRE SPLICE PROCEDURE AND RELATED PARTS. *TT Read More »

    STRUCTURE:FRAME AND MEMBERS

    • TSB #230397

      Date Announced:
      FEB 14, 1997
      NHTSA ID:
      #51942

      DIFFICULT TO CLEAN LIGHT COLORED "CHALKY" RESIDUE FROM PLASTIC BODY COMPONENTS THAT ARE MOLDED IN BLACK. *TW Read More »

    EQUIPMENT

    • TSB #D-20-02 Rev. A

      Date Announced:
      MAR 04, 2020
      NHTSA ID:
      #10175510

      DIPAP Requirements - Addition of Jeep Wrangler (JL/JK) and Jeep Gladiator (JT) Hard Top and Targa Top Panel Replacements - All Dealers (Rev. A) Read More »

    EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

    • TSB #081698

      Date Announced:
      APR 17, 1998
      NHTSA ID:
      #600862

      INFORMATION ON INSTALLATION OF RADIO TRANSMITTING EQUIPMENT. *AK Read More »

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