Car Problem Reports

Chevrolet Impala Check Engine Light Due to Gas Cap Issue

Chevrolet Impala Problem
12 Reports
Me Too

Model Years Affected: 2004, 2005, 2010

Average Mileage: 150,851 mi (100,000 mi - 181,000 mi)


Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

  • have replaced the gas cap 3 x at different intervals so far.

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  •  Rookie

    check engine light came on. got a new gas cap..but check engine light came back on. car idles high when i hit 30mph and i have to keep stepping on the gas until it jolts and picks up

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  • The gasket around inside cap had become hard and develop cracks allowing pressurize air to leak out causing the check engine light to turn on. the code P0442 was reported "small leak detected"

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  • , , 150,000 mi

    The gas cap was loose and wouldn't tighten, causing it to fail inspection.

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