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Ac Issue

msilvaj12j12

By msilvaj12j12
in Ask A GM Technician

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msilvaj12j12 New Member

msilvaj12j12

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The battery in my 2003 chevy tahoe was old. I drained it at the drive in. After that I started having issues with the driver side AC. It only blows hot air out the drivers side. The passenger side is cold as well as the rear ac unit. I thought I was the air blend actuator. But it was switches to all of the desired areas ie vent, floor, defrost. I have removed the actuator and worked the unit by hand and it still blew hot air.

 

I believe it is the HVAC control module. Where is that located and can it be reprogramed by a dealership?

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