2000 tahoe Rear air not working

[Kybash001]

Already checked fuses they are good. When I turn knob to on position there is a click in the rear sounds like it comes from passenger side under roof panel. Any help would be appreciated.

 

[blazerjohnny94]

not sure of prob but if it comes to it i just did away with my rear air so i could remove the rear system blower ect hope its something simple but keep me in mind we can come up with something best of luck are you trying from front controls or aux on front and trying from rear controls there is a module above the rear controls that might have went bad best of luck lmk if i can help emails always better for me [email protected]

 

[chauncey0337]

Sounds like a bad blend door actuator located under the rear passenger side wheel well cover. There are two of them back there and I believe the hot/cold actuator is the first one after the blower motor.