Question about 2004 Chevrolet Silverado 1500 Crew Cab

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2004 Silverado A/C dual control problem

I have a 2004 Silverado crew cab with shortbed. It also has the dual control option for the passenger and driver. The problem is with the A/C - the driver side is cool while the passenger side blows hot air. What do I need to do to fix this? Thanks in advance.

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  • lekiro313 Jul 09, 2008

    Same model, same problem. Unless the passenger control slide is all the way down, it blows warm air. When all the way down, it blows cool air, but not quite as cold as drivers side.

  • wilsons5 Dec 06, 2008

    same problem. Turn both sides down if on heat and have patience. It will self correct.

  • yjab52 Dec 31, 2008

    My 2004 silverado blows cold air on driver side hot air on passenger replaced control panel did not help i have dual control

  • leetaylor Jan 23, 2009

    Air is cold on driver air no matter what the setting for the passenger side. Really leaning towards it not being a ducting issue, but perhaps a bad temp. switch? Can't think of much else it could really be...anyone with more insight; would be good feedback!! Thanks!!

  • jdbaird_76 Jan 25, 2009

    Mine does the same thing, A/C works fine when you turn it on and drive down the road. Starts blowing hot air all of a sudden, not just outside air, but heated air out of the driver's side vents. I tried replacing the A/C control unit, then purging and recharging and neither solved the issue. Anyone figure this out?


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I have a 2005 and my # 4 setting on ac doesnt work

Posted on Jul 16, 2008

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May or may not help... I've had ongoing issues with my heater/ac, where it's like a vapor lock or something, sometimes the selected vent etc. doesn't work right, etc., like the vacuum control is f'd up.
I topped off my coolant, and things cleared up. Air in the coolant lines???
Hope this is a cheap fix for you.
Don G.

Posted on Jul 28, 2008

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