Ac Issue

[JoJoJim]

My wifes 2007 Denali suddenly at time not all the time blows normal cold air out the left hand side of the vehicle and blows really hot air out the right hand side. Makes no difference if controls on auto or select driver versus passenger side. I am at a loss. If shut off and re-start the vehicle it may come back to normal or may not. Driving along the other it just suddenly changed from operating normally to blowing hot air out the right side. Any help will be appreciated.

thanks,

[Kodiak450]

Sounds like problem with climate control unit. I would say it needs to be replaced.

[scagle777]

Sounds like problem with climate control unit. I would say it needs to be replaced.

 

 

My last truck had this problem....... The truck has 2 actuators that control the hot/cold on each side. One is underneath the dash on the passenger side the other is up top near the center. They are somewhere in the neighborhood of $75-100 each. The guy that had my truck before apparently tried to get it fixed because one of them were broke off into the case. I had to get the whole ac case removed to get it replaced.

[taco]

Mine is doing sorta the same thing.... will be working fine and then hot air (both sides). If I restart the truck it resets and blows cold again -- maybe for 10 minutes, maybe for the rest of the day. How much is it to replace one of these "climate control" units? I have the one with the digital temp readout.