Check Engine Light Due to Gas Cap Issue on Chevrolet HHR SS

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

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Average mileage: 79,902 (62,000–100,000)
3 model years affected: 2008, 2009, 2010
8 people reported this problem
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problem details
2009 Chevrolet HHR SS 62,000 mi,
check engine light
2008 Chevrolet HHR SS 80,500 mi,
Check engin light keeps coming on because of gas cap