Question about 2004 GMC Sierra

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The air conditioner on the passenger side of a 2004 GMC Sierra 1500 keeps blowing hot air even though the control switch is on cold.

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  • tonyski63 Dec 27, 2008

    I have the same problem periodically. My ac will be working fine then all of a sudden the drivers side will be blowing hot air while the passenger side blows cold air. if i shut the truck off and turn it back on it goes back to normal blowing cold air out of all the vents.

  • tonyski63 May 11, 2010

    What actuators? I plan on doing it myself. Just looking for leads on which way to go

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Its the actuators,take to shop tell them to replace.

Posted on Jul 27, 2008

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