Question about GMC Envoy

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1) AC is not working while stopping the car or getting into traffic but it works properly when the car is moving (RPM is not stable). 2) A noise when starting the engine but it becomes less louder after the engine warm up but do not disapear.

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Maybe the refridgerant is low enough to cause the system to cycle too often,check the a/c system for low gas.

Posted on Sep 16, 2010

  • ahin1 Sep 16, 2010

    I did check the refridgerant and it is ok they told me it is an RPM issue since it is not stedy and the compressor does not work properly

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You need to stop using it immediately before you
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The car has to be checked over/diagnosed,tested,etc for
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Borrow or Rent a car until resolved

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You should have some type of codes avail even
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The RPM moves around the car is 11 years old,so it may just
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If you depend on a repair shop to do things & don't
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