Check Engine Light Due to Gas Cap Issueon GMC Yukon XL 2500

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

RepairPal Verified
Average mileage : 43,000 (43,000–43,000)
4 Years Affected: 2007, 2008, 2009, 2010
5 people reported this problem
1 person shared problem details
The gas cap was not on properly
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