A/C climate control unit?

[Arctic-Rodz]

Have an 04 tahoe with the non-digital climate control, dual climate control unit.

Every once in a while, while im on the road it goes from cold to full blown HOT. Which sucks by the way when its freakin 100 degrees outside. This time of year in south texas its pretty cold in the morning and by the afternoon its warm.

The driver side is the only one that goes to hot, the passenger side stays cold. My guess is the Climate control unit, am I right to think thats what the problem is?

Another question is, can i swap to a digital, dual climate control unit (straight plug in?)

 

[Teqdogg]

I believe your actuator that controls the drivers side is going bad. I have a 2005 Yukon with the digital control and mine is starting to go and has the exact same symptoms (driver hot, passenger ice cold)

By turning off the ignition and re-starting, I have been able to reset it. I will probably replace it before the summer.

As far as the swapping a digital, I am not sure, sorry.

 

[Arctic-Rodz]

yea, same here. i have to turn the truck off n on so it can go back to cool.

do you know if im able to run a digital unit?

 

[chauncey0337]

I don't think so.

 

[WildBill]

I would expect a actuator or a controller. I have just been working through fixing the rear air that was stuck on cold. I finshed an hour ago and so far its working ok. What i can say is the digital/auto hvac system seems to be excessively complicated. There are what...5 actuators, 2 controllers, blower controllers, and the front and rear control heads. All the parts seem to be listed as separate part numbers (i.e. auto or manual). So i would think if you tried to swap to digital/auto hvac, you would be replacing many of these, I could see it being $500-700 pretty easily, and there is no garantee it will work. I wouldnt try the swap