hummer h3 thermostat

2006 HUMMER H3
111,000 MILES • 5 CYL • AUTOMATIC
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DJFAR
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  • 1 POST
how often should thermostat on 2006 hummer h3 be replaced?
May 11, 2011 at 9:38 PM
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FACTORYJACK
  • ✓ASE Certified Mechanic
  • 4,159 POSTS
  • ASE Certified Mechanic
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.
May 13, 2011 at 4:31 AM
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