Check Engine Light Due to Gas Cap Issue on Chevrolet Silverado 3500 HD

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

RepairPal Verified
Average mileage: 100,000 (100,000–100,000)
Exhaust & Emissions affected: Gasoline
4 model years affected: 2007, 2008, 2009, 2010
5 people reported this problem
1 person shared problem details
Check engine lite would come on in IL cold weather and go out in TX hot weather. Was told it was a oxygen sensor but turned out to be gas cap???
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