I am having this issue with my air unit. When i turn it on it only comes out on the defroster. No matter what i turn it to i.e floor, vent, mix, a/c it only comes out there. Any ideas? amnit:
There is a vacuum tree. When one of them comes unhooked it blows through the defroster. Ive never had to mess with mine so I dont know where it is though. Someone will.
Drivers side right next to the firewall, the tiniest line going there probably is off/snapped off. When mine broke it broke in two places, really confused me lol
Yup small plastic vacuum line that follows the firewall over to the opposite side, then goes through the firewall into the vent system. Mine has broke a few times. I ended up replacing the whole line.
It's under the hood on the outside of the firewall. You remove nothing. It's just there out in the open. Runs from the vacuum tree in the drivers corner, over to the other side about where the heater core lines are. Then runs through the firewall. MOST of the time it breaks in the engine compartment. But on occasion some have found the break, up in the dash. That's no fun, but can be found if you pull the stereo and center piece out.