Hummer H3
Cooling System Problems
We don't have a lot of Hummer H3 cooling system problems on file — feel free to add yours here. The most common H3 cooling system problems cost $600 to fix & occur at 70,000 miles. Click on a year below.
- Worst Cooling System Problems
- radiator cracked 2008 Hummer H3
- leaking radiator 2007 Hummer H3
- radiator leaks 2006 Hummer H3