I have the prolbem that my heat and a/c only come out the defrost vents. it does not come out the vents that are in th dash that face me??? what could be the prob
could possibly be a vac. leak. I think there was an old post about similar problems. might wanna try doing a search if ur in a rush, or wait and see if any of those people remember what was said or what to check out.
I had the exact same problem. There is probably a vacuum leak right behind your a/c controls. One day I heard a hissing sound coming from my dash and when I went to turn on my a/c it only blew out of the front defrost vents. All I did to fix it was take the a/c controls off and make sure all the vacuum lines attached to it were nice and snug.
