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p0128

  1. Engines/Performance/Tech Questions
    Long story short. 2006 Colorado CrewCab, 2.8L 4Cyl 85,000 miles Arizona, currently 110° Driving on Freeway Light 'Check Engine' Stop at Autozone to get reading. Got P0128: 1. Check Coolant level. 2 Thermostat defective. 3. Cooling Sensor defective. Temperature above half point (see picture)...
  2. Engines/Performance/Tech Questions
    Ran a quick scan today to see why my check engine light came on this week. It was on for roughly 150 miles, then went off. Happened twice within the past two weeks or so. Scanner displayed p0128 - Coolant Temp Below Thermostat Regulating Temp So...can I assume that my thermostat may be...
  3. I4/I5 Engine & Drivetrain
    you get to it??? I stopped on the way home and bought one along with the proper amount of coolant (thanks Darek) thinking I would change it tonight because I think it is stuck in the closed position. The reason I think it is stuck in the closed position is the fact that it is not circlating and...
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