Car Problem Reports

GMC Canyon Check Engine Light Due to Gas Cap Issue

GMC Canyon Problem
24 Reports
Me Too

Model Years Affected: 2004, 2005, 2006, 2007, 2008, 2009, 2010

Average Mileage: 94,067 mi (28,000 mi - 160,000 mi)


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

  • Visitor, , 90,000 mi

    I have the same problem with the gas cap

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  • Visitor, , 70,000 mi

    rough idle and engine would gas cap and problem was fixed.

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  • Visitor, , 160,000 mi

    I am buying my 4th gas cap. original lasted ~95k, two after market failed during next 60k.

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  • ohsusie, , 135,000 mi

    Check engine light...

    ..turned off after replacing gas cap..
    ... came on again.. months later.. not fixed with another gas cap..
    Check engine light is on again.. Going to have diagnosis done.. but Terrified of being 'sucked into' the nightmare
    of "single woman.. unknown problem" .. gotcha.. with Mechanics..!!!

    Mass air flow sensor? OMG.. not the catalytic converter!!

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  • diknmik, , 38,000 mi

    check engine light on

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  • Visitor, , 28,000 mi

    check engine light comes on after a few miles of driving

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  • Visitor, , 118,000 mi

    My engine light comes on and my engine idles rough, but as soon as the light goes off (randomly) the engine runs fine. The gas cap light comes on my dashboard warning me the it is not secured, I twist of the cap and put it back on, sometimes this will trigger the warning to go off and everthing is fine. That would be wonderful it that was all it was. I am replacing my plugs, air filter and fuel filter to see if these contribute to the light being on.

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  • Visitor,

    Replaced gas cap

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