Hummer H2 Problem Report
Hummer H2 Check Engine Light Due to Gas Cap Issue
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
Tighten feul cap warning.. replaced cap. Lasted 4 days then started again and now I have an engine light on.. gotta take it in to have it checked. - Visitor
Check engine light went on after awhile and not only was realized that putting in gas and attendant did not seal correcty. - Visitor
still does it...and dealer won't fix - Visitor
the service garage said it was rust on filler neck ,they sanded it and it still happened. I discovered that the cap always felt loose and decided to replace it, in doing so , I found out that part of the rubber on the cap was missing . I hope this fixes the problem ! - Visitor
shop said to get a new gas cap. mine cap cover just snaped off one day. so i got out the super glue. but now the cap will not click when i try to tighten it. so know i will buy a new one. - Visitor
this is a very common problem replaced 2 gas caps due to engine light also 2 times on my 2500 series - Visitor
One or both secondary air injection check valves may become restricted causing poor air flow re...
Check engine light came on after truck misfired and stalled after fueling.
gas gage goes pass full line and abs light comes on and air comes out of my air suspension
I had the front driver side hub assembly replaced recently and since then my ABS, Brake, and Tr...