Check Engine Light Due to Gas Cap Issue on GMC Sierra 1500 HD

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

RepairPal Verified
Average mileage: 87,600 (87,600–87,600)
7 model years affected: 2001, 2002, 2003, 2004, more2005, 2006, 2007
11 people reported this problem
0 people shared problem details
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