Hummer H2 Problem Report

Hummer H2 Check Engine Light Due to Gas Cap Issue

(2 reports)

A Loose or worn gas cap may cause Check Engine Light to illuminate.

Related Items:
Check engine light came on after truck misfired and stalled after fueling.
One or both secondary air injection check valves may become restricted causing poor air flow re...
I had the front driver side hub assembly replaced recently and since then my ABS, Brake, and Tr...