A/C works in back but not front?

[WH0DAMAN]

My A/C works great in the back but blows warm in the front. I'm thinking it has something to do with the servo to the vent door but I'm not sure. Anybody have this problem?

 

[jmildoc]

there is a blend door actuator... look it up and see.... I had to fix it on my car... not the yukon though thank god...

 

[our97ho]

thats funny cause in the hoe our back vents work sooo much better then front damn kids hoggin all the ac

 

[ande6009]

Im having the same problem, but I dont know which blend door (actuator) to check or replace. Looks like one to right of gas pedal, from researching on this site, is for defrost and vent movement...
I also "assume" the one on far right is for defrost according to diagram I found.......so the one in the middle (which looks to be the hardest to get to) might be the culprit of my delima

Thanx in advacne for help and/or pics

 

[gpracer1]

Im having the same problem, but I dont know which blend door (actuator) to check or replace. Looks like one to right of gas pedal, from researching on this site, is for defrost and vent movement...
I also "assume" the one on far right is for defrost according to diagram I found.......so the one in the middle (which looks to be the hardest to get to) might be the culprit of my delima

Thanx in advacne for help and/or pics

The one by the gas pedal should be the fresh air/recirc air door. I had to fix the broken gear on that one.

 

[ande6009]

Excellent info to know...thanx!!!