2007 Hummer H3 engine and engine cooling problems
13 owner complaints filed with NHTSA name the engine and engine cooling on the 2007 Hummer H3 — 5% of all complaints for this model year.
What owners report
“Noticed radiator fluid dripping underneath vehicle. Opened the hood and found radiator coolant had been blown all over interior engine compartment. Enough coolant remained in the reservoir to prevent overheating. I noticed the incident just in time. *tr”
filed Dec 23, 2014
“Ac/heat blower fan resistor faulty. Causes blower to stop working. The short may cause a fire. Many complaints of this issue on the internet. May be time to pursue a class action suit. *tr”
filed Jul 1, 2014
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine and Engine Cooling problems in other H3 years
| Year | Reports | Share |
|---|---|---|
| 2009 H3 | 1 | 1% |
| 2008 H3 | 4 | 4% |
| 2006 H3 | 35 | 10% |
Other reported problem areas on the 2007 Hummer H3
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.