Check Engine Light Due to Gas Cap Issue on GMC Yukon

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

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Average mileage: (–)
4 model years affected: 2007, 2008, 2009, 2010 more
6 people reported this problem
1 person shared problem details
Had the same proble shortly after purchasing my vehicle. Dealer replaced gas cap and no further problems.
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