Hummer H1
Fuel System Problems
We don't have a lot of Hummer H1 fuel system problems on file — feel free to add yours here. The most common H1 fuel system problems occur at 99,000 miles. Click on a year below.
- Worst Fuel System Problems
- vehicle died on the highway 2002 Hummer H1
- pmd (pump mounted driver) failure 2002 Hummer H1