1990 Jeep Wrangler service bulletins & manufacturer communications
12 manufacturer communications are on file with NHTSA for the 1990 Jeep Wrangler. TSBs are repair guidance for dealers — they are not recalls, and repairs are not automatically free.
Technical service bulletin 12
- DIPAP Requirements - Addition of Jeep Wrangler (JL/JK) and Jeep Gladiator (JT) Hard Top and Targa Top Panel Replacements - All Dealers (Rev. A)D-20-02 Rev. A · Technical service bulletin · Equipment · issued Mar 4, 2020
- Subject regarding wire splice repairs. *sb0800600REV · Technical service bulletin · Electrical System · issued Dec 29, 2000
- This bulletin provides a revised wire splice procedure and related parts. *tt080600 · Technical service bulletin · Electrical System · issued Feb 25, 2000
- Information on installation of radio transmitting equipment. *ak081698 · Technical service bulletin · Equipment · issued Apr 17, 1998
- Concerns with engine coolant usage. *nlm070397 · Technical service bulletin · Engine and Engine Cooling · issued May 9, 1997
- Various car owner's have expressed interest in using engine coolants made with propylene glycol instead of ethylene glycol. *yc070397 · Technical service bulletin · Engine and Engine Cooling · issued May 9, 1997
- Difficult to clean light colored "chalky" residue from plastic body components that are molded in black. *tw230397 · Technical service bulletin · Structure · issued Feb 14, 1997
- 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. The pcv harness …RCL647 · Technical service bulletin · Engine and Engine Cooling · issued Oct 1, 1995
- UNKNOWNRCL/617 · Technical service bulletin · Engine and Engine Cooling · issued May 1, 1995
- Recall 558 - failure of the oxygen sensor and catalytic converter may cause a vehicle to be in violation of california emissions standards. To correct this condition, the oxygen se…RCL/558 · Technical service bulletin · Engine and Engine Cooling · issued Apr 1, 1995
- It has been determined that the 1990 jeep vehicle, equipped with the 2.5l engine, may be in violation of federal emissions standards. Hydrocarbon, carbon monoxide and oxides of nit…RCL/557 · Technical service bulletin · Engine and Engine Cooling · issued Dec 1, 1994
- Hydrocarbon and carbon monoxide emissions levls for the above listed model vehicles may exceed the limits allowed by california emissions standards. To correct the condition, the p…RCL/589 · Technical service bulletin · Engine and Engine Cooling · issued Nov 1, 1994