My lincoln navigator AC blows cold on my 2nd and 3rd row but it blows hot int the front it some time works perfect up front and then i hear a little door being closed shut and then it's blowing hot and this doesn't change by stopping and restarting engine.

paul

 

Busted or sticking blend door, most likely. Sorry.

If you're lucky, it's only an intermitent blend door actuator.

Steve

 

thanks for the quick reply, but that all sounds too hard for the laymen to tackle, i was hoping it would be something simpler...

paul