GMC Yukon XL 1500 Problem Report

GMC Yukon XL 1500 Check Engine Light Due to Gas Cap Issue

(5 reports)

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

Engine light code indicated loose gas cap - replace. I have replaced it 3 times parts store caps and oem caps. Still get light about every 6 months. When I open gas cap, gas tank is pressurized! -
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