2002 Yukon/Help with ac

[hosshd96]

First time posting , I have a 2002 Yukon SLT 2500 4x4 with a 8.1L . My battery recently died, so I replaced it , but after replacing it , my ac only blows out of the defrost . I’ve changed out the ac control unit and the actuator on drivers side above the gas peddle. I’ve also tried resetting the ac by unhooking the battery again and pulling the fuses for the ac. Still no luck, no matter which position I put the ac selector I’m in still just blows out of the defroster. Any help would be appreciated. Thanks
Bill

 

[Miami-Dade]

Welcome from Miami Beach Bill!

 

[Fless]

You could try a manual recalibration, the first and third ones in this post (might try this with your old control module, too):

Front AC blows warm and not the usual suspect

First I have an 05 denali. The back AC works perfectly. The front started to get warm and will only cool some what when driving. I checked the blend door actuators by watching them move and taking them off and turning the door manually and the AC didnt get cold. I did even the top one behind the...

www.tahoeyukonforum.com

If you have access to a Tech 2 scan tool, the calibration can be done with that.

 

[OR VietVet]

Welcome, finally, to the forum activity.

 

[hosshd96]

Thanks for the help