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A/C related buzz noise inside dash

bandera

By bandera
in Ask A GM Technician

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bandera Enthusiast

bandera

Posted
Posted

I have a 2000 Silverado Z-71, 5.3, auto trans. There is a buzzing/humming noise coming from the dash area associated with the A/C. The noise is coming from the area directly behind the a/c vent located just to the left of the glove box and sort of behind the glove box. I actually thought a bee or wasp had somehow gotten inside there when I first noticed it. Even with the A/C switch in off and the engine off, when the ignition switch is turned on you hear the noise start. It sort of sounds squeeky like it is in need of some WD-40 (hopefully !). But in searching here on the forum I'm afraid it will end up being an actuator. Are there more than one actuators ? Can it be fixed without removing the dash ? Surely one of you have had to deal with this problem. Does anyone have the procedure to fix this ? Any info will help. Thanks !

gmtech4 Senior Enthusiast

gmtech4

Posted
Posted

sorry you are way premature to call an actuator and how to fix it

 

more diagnoses is required

 

Alldata $27/yr,,,get it,,,awesome

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