8.0
pretty bad- Typical Repair Cost:
- No data
- Average Mileage:
- 107,000 miles
- Total Complaints:
- 3 complaints
Most Common Solutions:
- not sure (2 reports)
- New head (1 reports)
![2007 Hummer H3 engine problems](http://cdn.carcomplaints.com/img/v1/categories/engine.png)
engine problem
Helpful websites
- No one has added a helpful site for this 2007 H3 problem yet. Be the first!
A D V E R T I S E M E N T S
i think gm should fix it i love the truck just needs a new head
- Ronald B., Crystal Lake, IL, US