I have a 98 explorer sport with a V6. The heater only blows out of the defroster. No matter where I position the selector switch even on A/C or Max A/C it still blows from the defroster and the A/C doesn't activate. I pulled off the panel and it looks like it operates by vacuum.
FYI. I had some front end body work done on it recently.

Thanks for any help.

 

See my post in April 2001. Did you ever find out what the problem was? If you did, please reply to my post.

Thanks