Five0hFox

Hey I noticed in my Mustang that when I change the climate controll to come out of a different spot it only comes out of the defrost it seems like. The controlls run on vaccum correct? So do I possibly just have a vaccum leak somewhere? Could you all point me in the direction of fixing this? Thanks.

99_GT

Look for a small tube going though the firewall. That seems the be where they can leek.

Five0hFox

Is that the thing that is most likely causing the problem?

tylerl90

Probably

93_five_oh

yes. check at the tee connection above the brake booster. you'll see A/C printed on the tee... follow that line. it's probably broken somewhere. if not, check under the dash/glove box to make sure the vac line connector is still connected