Rear air Q

[Devs93]

Ok pick up an 00 Denali {obs style} the other day. Had a schrader valve leaking pumped everything down and recharged it. The air blows cold as can be but the rear air still blows hot. All the blower speeds work. Am I just overlooking a button somewere or what could be the prob?

 

[SunlitComet]

Perhaps a previous repair included a some sort of leak sealant blocking the path in the thermo-expansion valve.

 

[Devs93]

I think its a damper door not workin right after talkin to a couple people

 

[SunlitComet]

So you do have the heat feature in rear as well? SOme people here claim it does not exist. But I have not norrowed that issue down yet myself being as how I don't have a '99.

 

[Devs93]

it was the damper heard it break loose earlier and now its cooling like a champ. As far as I know whatever setting you have it on in the front is what it is in the rear.