2007 Hummer H3 3.7L Misfire
Thank you for your help. We have a misfire in cylinder 4 on this 3.7 engine. We have swapped the coils and plugs, and performed a compression and leak-down test with no problems found. We have seen that there are some problems with the intake valves and cylind...
FIX posted 8/11/2010
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Vehicle Data2007 Hummer H3
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Message Closed w/FIX
Vehicle Data
2007 Hummer H3
VIN | 5GTDN13E37 |
Engine | 3.7 L / 5 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | Misfire |
Occurs | Cruise, Idle |