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2000 Yukon slt really weird Hvac issues

Discussion in 'Interior' started by Rollincoal, Jan 12, 2021 at 6:46 PM.

  1. Rollincoal

    Rollincoal TYF Newbie

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    Name:
    Will
    Hey, to all. First off happy New Years to everybody. So I just noticed this about a week ago that my front climate controls seem to be working intermittently unless the temperature is all the way on hot. It doesn’t seem to blow good heat until fan and temp are both set on max. In the rear on every setting it blows cold air and nothing else. Coolant flush and new thermostat and no change. Anybody got any ideas before I start replacing hvac modules , controls , and actuators? Any suggestions would be much obliged! Thanks ...
     
  2. Cbncanada

    Cbncanada Member

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    Les
    How is the engine temperature? Thermostat could be stuck open even if it is new.
     
  3. Rollincoal

    Rollincoal TYF Newbie

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    Truck seems like it always takes awhile to get to operating temp. Another thing I noticed yesterday is when I set to defrost in the front, I can hear the air in the vents on top of the dash but physically feel no air coming out.
     

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