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

Problem Description and Possible Solution

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

Problem Data
RepairPal Verified
Average mileage: 79,902 (62,000–100,000)
3 model years affected: 2008, 2009, 2010
8 people reported this problem
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check engine light
Check engin light keeps coming on because of gas cap