Check Engine Light Due to Gas Cap Issue on Chevrolet Silverado 1500 HD

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

RepairPal Verified
Average mileage: 110,995 (64,500–196,000)
7 model years affected: 2001, 2002, 2003, 2004, more2005, 2006, 2007
13 people reported this problem
4 people shared problem details
check engine light came on - no other problems - computer message was to tighten gas cap New gas cap - no check engine light
Check engine light due to gas cap issue
I'm not really sure what the problem is just yet, sometime the check engine light goes away, them will come on days later.
Dealer wanted $400 for some emission valve. New gas cap solved the problem!
Related Items:
A loose or worn gas cap could be cause the Check Engine Light to illuminate.
One or both secondary air injection check valves may become restricted causing poor air flow re...
What is needed to service the 4 wheel drive and what all do I need to do for the 100,000 miles...
Truck started about 2 months ago losing acceleration while driving. You have to pull off road,...
A poor electrical ground under the battery tray may cause the ABS warning light to illuminate....

Related Content