Outside air valve operation?
Thread Starter
Racer
Joined: Apr 2006
Posts: 322
Likes: 0
From: Rockford MI
Outside air valve operation?
Hello, I am trying to find out when the outside air valve, which is the vacuum operated air door in the passenger side of the windshield wiper well is supposed to be closed.
From what I have found out so far, maybe it is supposed to be closed when the a/c is on max so it recirculates the inside air? But I would like to know if it supposed to be closed with the heat control in the off position. Mine doesn't close at all, so I'm trying to figure out when this thing is supposed to work.
Thanks
From what I have found out so far, maybe it is supposed to be closed when the a/c is on max so it recirculates the inside air? But I would like to know if it supposed to be closed with the heat control in the off position. Mine doesn't close at all, so I'm trying to figure out when this thing is supposed to work.
Thanks
Drifting
Joined: Apr 2008
Posts: 1,305
Likes: 2
From: Lewisburg WV
thegazman
It closes just like you thought; when A/C is on MAX. Check to see if you have vacuum to it on A/C MAX. If you have vacuum and it's not closing you will have to replace the vacuum canister. I had to do that when I rebuilt my A/C system.
