Air con blowing out of defrosters and not through the vents

[wahoo54]

I have a 1995 Ford Mustang with a v6 engine. Recently when I started the car and put the air con on it would only blow out of the defrosters. What happened? I can't get it to come out the dash vents. What do I need to do to fix it?

 

[chaos254]

looks like one of your vaccum lines broke or is cracked..check the lines that run along the firewall behind the engine. Mine was doing the same thing and I ended up finding a line that broke in half. I fixed it with a connector from the parts store and everything was good to go.