Question about 2004 GMC Envoy

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2004 Gmc Envoy XUV A/C problems

I have had this problem for a while. When you start the vehicle and turn on the ac i blows warm until you start moving and then it will cycle between warm and cold for a couple minuets. Finally it will get cold and stay cold. Dealership has drained the system and recharged it and still nothing. They say that they cant duplicate the problem. As i told them it does it every day. I left it with them for over a week and still nothing. That afternoon that i picked it up it did it again. Please help. Have a small baby and it is aggrivating. Thanks.

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  • bigguy6920 Aug 23, 2008

    Hi, it will blow hot muggy air if it sat there for 20 min. Even with the windows down. The only time it will get cold is when you start moving. Also the vehicle has stalled a few times with the ac on. If i go into a store and come back out it starts all over again. The vehicle does not stall all the time. Mostly when at idle speed. Sometimes it will hesitate when letting off of the brake. Other than that the motor runs fine all the time. Thanks.

  • bigguy6920 Aug 23, 2008

    hi, not sure if you mean the ac system or the truck. The truck is automatic and the ac is digital dual climate control. Thanks.

  • Anonymous Sep 05, 2008

    I have a 2004 envoy ...same problem

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Hi, do you turn the AC as soon as you start the car? If this is the case yes if will blow hot until the AC kicks in. What the ac does is not put cold air in to the vehicle it removes the heat from the air, so it does take time for it to do this.A little trick for a bit quicker is to roll down a window these just helps. I read that once it starts getting cold it stays cold is this right? Once it stays cold have you notice that if you stop for just like running into the store and you start the car back up is it still cold or does the problem starts over? Hope this helps some please let me know.

Cheers

Posted on Aug 23, 2008

  • Rob Cobb
    Rob Cobb Aug 23, 2008

    Do you have an Manual or automatic system



    Cheers

  • Rob Cobb
    Rob Cobb Aug 23, 2008

    Sorry about that Im talking about the AC system. if for the manual you have to set the temp and fan speed or auto you can set the temp you like and that is it the temp control will turn on and off as needed.



    Cheers

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