Car Problem Reports

GMC Jimmy Check Engine Light Due to Gas Cap Issue

GMC Jimmy Problem
10 Reports
Me Too

Model Years Affected: 1996, 1997, 1998, 1999, 2000, 2001

Average Mileage: 128,200 mi (109,000 mi - 150,000 mi)


A Loose or worn gas cap may cause Check Engine Light to illuminate.

  • Visitor, , 150,000 mi

    Check engine light keeps coming on.I tighten up the cap it goes off I drive a couple days it comes back on a the cap is loose. I purchased a cap at auto zone same problem.If I get the $ 30.00 cap from the dealer will it stop?

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  • jimmykat98, , 125,600 mi

    Whenever I get gas, I tighten it to about 5-6 clicks, the check engine light comes on. I have had this checked and its my gas cap. I need to get another one to see if this stops the light from coming on. I can't get my vehicle inspected with this light on. But I am sure getting a new cap will fix this problem.

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