1991 Jeep Wrangler

11 Technical Service Bulletins (TSBs)

TSB List for the 1991 Jeep Wrangler

Technical Service Bulletins (TSBs) for the 1991 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:MANIFOLD/HEADER/MUFFLER/TAIL PIPE
  • 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 #110798

      Date Announced:
      JUL 31, 1998
      NHTSA ID:
      #602327

      THE OUTER EXHAUST MANIFOLD STUDS MAY FATIGUE AND BREAK. *YC Read More »

    • TSB #98698

      Date Announced:
      SEP 01, 1997
      NHTSA ID:
      #54225

      RECALL NOTIFICATION AND PROCEDURE ON CATALYTIC CONVETER AND CARBURETOR. *YC Read More »

    ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

    • TSB #110798

      Date Announced:
      DEC 11, 1998
      NHTSA ID:
      #603108

      OUTER EXHAUST MANIFOLD STUDS MAY FATIGUE/BREAK. *AK Read More »

    • TSB #110798

      Date Announced:
      JUL 31, 1998
      NHTSA ID:
      #602327

      THE OUTER EXHAUST MANIFOLD STUDS MAY FATIGUE AND BREAK. *YC 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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