I have a 99 expedition an have a problem with the rear ac dose not work while the fronfront works fine have checked fuses n relays n nothing I would like some in put on how tho fix this problem considering. I live in south Texas and with summer here really need a resolve. This problem

 

Does your a/c come through the roof of through the console? Mine is in the console and the blower motor was broken. Replaced that and it works fine.

 

From the roof I read some where that there a little senser. On the blower that can be replaced and is cheaper than buying whole blower thank u for the info