1995 Pontiac Sunfire Engine Control Module Service Procedure

1995 Pontiac Sunfire L4-2.2L VIN 4

Engine Control Module: All Technical Service Bulletins

Recall - Corrosion/Moisture Entering the PCM

Condition

General Motors has decided to conduct a Voluntary Emission Campaign involving certain 1997, 1998 and 1999 Chevrolet Cavalier and Pontiac Sunfire model vehicles located in fifteen U.S. high salt corrosion states and in Ontario. Quebec and Atlantic provinces; and certain 1995, 1996, 1997, 1998, and 1999 Chevrolet Cavalier and Pontiac Sunfire model vehicles located Manitoba, Saskatchewan, Alberta, British Columbia, the Yukon and Northwest Territories. These vehicles have the potential to experience moisture entering the Powertrain Control Module (PCM), as a result of corrosion after extended exposure to road salt, Moisture entering the PCM can lead to symptoms including illumination of the Check Engine light or the engine running rough. If these symptoms are ignored, the engine may stall and may not be able to be restarted.

Correction

Dealers are to seal the Powertrain Control Module (PCM) in a protective shield/cover assembly.

Service Procedure

1. Disconnect the negative battery cable.

2. Remove the right-hand engine splash shield (in front of the right front tire assembly)

3. Remove the horn attachment bolt. Disconnect the wire and remove the horn. Download File PDF


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