2004 GMC Yukon Logo
Posted on Sep 19, 2009
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2004 Yukon. driver side air conditioner not working

2004 Yukon. driver side air conditioner will alternate hot and cold air through the vents -driver side thermostat will not control temperature. After 15 minutes, driver side air blows hot. Passenger side and rear a/c works fine.

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Philip Armitage

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  • Master 437 Answers
  • Posted on Sep 19, 2009
Philip Armitage
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Joined: Aug 20, 2009
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You need to change drivers side temp door actuator then disconnect battery for 5 seconds and reconnect after changing the part, turn key on for 60 seconds with touching heater control to allow actuator to program and then it will work.

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Car overheats and Air blows hot at idle? http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html

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2005 Chrysler PT Cruiser: A/C Blows Warm? http://whoisbyme.blogspot.in/2012/06/2005-chrysler-pt-cruiser-ac-blows-warm.html

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1992 Toyota Camry: A/C Control light Flashing and A/C not Blowing Cold? http://technoanswers.blogspot.in/2012/04/1992-toyota-camry-ac-control-light.html

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No heat, blower blows only cold? http://technoanswers.blogspot.in/2012/02/no-heatblower-blows-only-cold.html

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These will help.
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I have had this problem. I am not a mechanic...so to correct the issue temporarily, I simply turn off the car and restart. This has worked everytime for me. In extreme cases, I think you can also remove the AC fuse and start the car, which will also reset the computer. I also think that by taking the climate control off the "AUTO" setting has worked in the past.
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Probably the left temp actuator. The wires in the right I/P junction block could have poor tension also, but it's usually the temp actuator.
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