Car Problem Reports

Pontiac Sunfire Check Engine Light and Misfire Due to Ignition Module/Coil Failure

Pontiac Sunfire Problem
11 Reports
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Model Years Affected: 1999, 2002, 2003, 2004, 2005

Engines Affected: 2.2L 4 Cylinder, 2.4L 4 Cylinder

Average Mileage: 87,600 mi (11,000 mi - 150,000 mi)


The ignition module or an ignition coil may fail causing an engine misfire, the Check Engine Light may or may not illuminate. Diagnoses will be required to determine the cause and needed repair.

  • Visitor, , 2.2L 4 Cylinder, 104,000 mi

    I have had this car a year now, not even. Put about 25,000 miles on it I am on coil pack #3 and module #6 from the zone. Car has been to 2 private shops and a dealer, No one can find anything wrong causing this. Now I have a misfire at 3000 plus RPM. Here we go again.
    It would really be a nice little car without this grief.

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  • Visitor, , 30,000 mi

    Drove away from the gas station without replacing gas cap, not sure if that was related to problem. After a few blocks, check engine light came on. Closed gas cap, but engine began running very rough, light remained on. Had check engine code diagnosed, was told that coilpack had failed - had to have it replaced.

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