THERMOSTAT

2006 Hummer H3

Tiny

djfar

May, 11, 2011 AT 9:38 PM

How often should thermostat on 2006 hummer h3 be replaced?

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Tiny

factoryjack

May, 13, 2011 AT 4:31 AM

Does not have to be a regularly serviced item. Most often I replace them due to a check engine light and P0128, fails to reach operating temperature, code. I changed one in a 2008 last Monday that was improperly regulating temperature, that had no code. The customer complaint was that the gauge moved around on long drives. I determined with a scan tool, that the engine would take a long time to reach about 175, and picking up the speed(increasing flow) would actually drop the temperature about 10 degrees.

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