Check Engine Light Due to Gas Cap Issue on Chevrolet Express 1500

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

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Average mileage: 76,000 (76,000–76,000)
2 model years affected: 2005, 2010
2 people reported this problem
1 person shared problem details
Engine light has gone on repeatedly for the last few months. Mechanics have told us each time that the gas cap was loose. So we purchased a new gas cap from Chevy and replaced it. The engine light came on again still. We are taking it in for servicing now. Very frustrating. Will update later.
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