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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