Hummer h2 overheating when I drove it

Asked by Aisha Sep 04, 2015 at 12:53 PM about the 2005 Hummer H2 Base

Question type: Maintenance & Repair

2 Answers
65,590

firebird338 answered 9 years ago

First make sure the radiator fan is coming on thermostat may not be working and has to be replaced. Cooling system may have to be flushed and check radiator cap or over flow tank cap. Also clean radiator with a garden hose and nozzle maybe clogged with dirt and bugs restricting air flow.

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