Check Engine Light Due to Gas Cap Issue on Pontiac Grand Prix

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

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Average mileage: 160,000 (160,000–160,000)
2 model years affected: 1996, 2007
3 people reported this problem
1 person shared problem details
the gas issue keeps appearing on my dash evan though i have gotten the gas cap replaced.
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