2008 Hummer H3
Engine Problems
2008 Hummer H3 Engine Problems
Click on a problem below to read more.
- Loss Of Power
- Misfires/Rough/Shakes
- Won't Start
- NHTSA: Engine
- NHTSA: Engine And Engine Cooling
- NHTSA: Vehicle Speed Control
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Compare Hummer H3 Model Years
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Check out our Hummer H3 overview to see the most problematic years, worst problems and most recently reported complaints with the H3.
