Car Problem Reports

Buick Century Check Engine Light Due to Gas Cap Issue

Buick Century Problem
4 Reports
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Model Year Affected: 2005

Average Mileage: 100,333 mi (88,000 mi - 123,000 mi)


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

  • Visitor, , 123,000 mi

    check engine light came on. Mechanic checked code, cleared it and suggested we tighten gas cap to at least three "clicks". Three months later problem has not returned

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  • Visitor, , 88,000 mi

    check engine light came on and stayed on code said vacume leak I replaced gas cap with new one and cleared code and light never came on again.

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