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fan clutch

  1. Fan clutch squeal

    I4/I5 Engine & Drivetrain
    When I start up my truck in the morning it squeals really bad. The higher the RPMs, it gets louder and faster. As it warms up it squeals less and less, and eventually goes away. It is worse when it is colder, and my fan is always on, even right at start up. I just wanted to make sure it isn't...
  2. Fan Clutch always engaged

    I4/I5 Engine & Drivetrain
    As I was doing some general maintenance in the garage, I noticed that the Fan clutch seems to fully engage moments after I start the engine. Is there way to test the fan clutch? If the fan clutch is always engaged, could that be affecting my poor gas mileage. 07 3.7L 4x4 Z71. I am currenty...
  3. Infamous P0128 troublecode - HELP!

    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)...
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