Question about 2004 GMC Envoy

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My climate control only works when i Have it on high

My climate control switch only works when i put it on high the others levels will not work

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The switch needs to be replaced or cleaned, there r 4 copper connections that regulate the power going to the motor, the previous owners probly only used hi so the connections r dirty

Posted on May 13, 2012

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Posted on Jan 02, 2017

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SOURCE: climate control does not work on my Mercedes ML 320 suv

check the following. #1, it could be the flap soliniods. This is located behind the dash on the heater box. This operates the flpas to regulate hot and cold air. The clicking sound could meen that it's trying to operate but can not due to a dying motor. You need to check which one is faulty. from memory there is about 4 or 5. #2. Behind the a/c fan speed control there is small plug. Sometimes this can be left unplugged if someone has worked on the car. e.g installing a new Radio/cd player etc.
good luck.

Posted on Jul 12, 2009

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