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Posted on Jun 11, 2010

2004 Envoy xuv 6 cyl stalls with A/C on at idle

2004 Envoy xuv 6 cyl when I turn on the A/C the truck stalls but as long as I keep my foot on the gas it will continue to run

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  • Posted on Jun 28, 2010
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2004 Envoy xuv 6 cyl when I turn on the A/C the truck stalls but as long as I keep my foot on the gas it will continue to run

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  • Posted on Jul 17, 2010
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When heater or a/c is turnd on, the idel drops and stalls. this happens when i disconnect the battery.

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  • Posted on Jul 17, 2010
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2004 envoy. when heater or a/c is turnd on, the idel drops and stalls when the compressor kicks in. this always happens when i dissconnect the battery.

  • sweet101tee Mar 28, 2011

    2004 envoy the same is now happening to my truck. I replaced the battery 2 weeks ago. I replaced the water pump and camsensor 1 week ago. I now have the issue of my vehicle stalling when I turn on the heat or a/c. I added some carbcleaner and now it's idling low but not stalling out any longer.

  • Darrell Vincent Aug 25, 2017

    Catalytic converter plugged

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2004 Envoy xuv 6 cyl when I turn on the A/C the truck stalls but as long as I keep my foot on the gas it will continue to run

Is your "Service engine soon" light on?? If so, have your vehicle's computer scanned for error codes. If not, Clean or replace the IAC valve (idle air control valve). This unit controls airflow through the engine while the gas pedal isnt pressed or A/C is powered on.
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When my 2004 gmc envoy xuv is idleing i put the heat on n it stalls out.why?

Either you have a vacuum leak or electrical issue.
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Next test engine vacuum (17-21 hg's)
If all a-ok then its electrical and you got your work cut out for ya.Have to probe the circuit to see where its shorting and what its shorting to. I don't think it will be electrical simple because you would be blowing fuses if it was. Sounds more vacuum related..... and thats worse.
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