Chevrolet Silverado 1500 HD Problem Report
Chevrolet Silverado 1500 HD Check Engine Light Due to Gas Cap Issue
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
check engine light came on - no other problems - computer message was to tighten gas cap New gas cap - no check engine light - Visitor
Check engine light due to gas cap issue - Visitor
I'm not really sure what the problem is just yet, sometime the check engine light goes away, them will come on days later. - Visitor
Dealer wanted $400 for some emission valve. New gas cap solved the problem! - Visitor
A loose or worn gas cap could be cause the Check Engine Light to illuminate.
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