Help with HVAC system
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Mountain Pass
Joined: Feb 2004
Posts: 197
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From: In the swamps of Florida
Help with HVAC system
The HVAC system on my '83 F-150 recently started giving me problems. No matter what position the controls are on, the air only comes out the panel vents. I just need to find out where to start looking. I'm sure that either a vacuum hose has come off or one of the doors is stuck, but not sure what to look at first. Thanks for the help.
New User
Joined: Jan 2008
Posts: 0
Likes: 24
The same thing happened on a guy's truck in the 73-79 forum,.
He had to buy a new dash control unit.
I suggest the problem is the same for yours.
His thread is on page one of that forum.
https://www.ford-trucks.com/forums/s...d.php?t=459900
He had to buy a new dash control unit.
I suggest the problem is the same for yours.
His thread is on page one of that forum.
https://www.ford-trucks.com/forums/s...d.php?t=459900
Last edited by Mil1ion; Feb 16, 2006 at 09:26 PM.
Postmaster
Joined: May 2004
Posts: 2,854
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Sounds like the air distribution door or its' actuator is seen better days. It routes the air. Not a dealer repair, unless you have a CD you can cash in.
Try searching the forum......Fords are notorious for door problems. Even late model ones.
Try searching the forum......Fords are notorious for door problems. Even late model ones.
Junior User
Joined: Jan 2006
Posts: 60
Likes: 0
my 83 f-100 needed a new actuator. they are vaccum operated, so make sure the
hose going to the tee on the firewall is connected to the little vaccum tank (looks
like a black softball, and mounts on the passenger side). Sometimes the hose just
gets soft or kinks and the actuator isn't getting any vaccum.
hose going to the tee on the firewall is connected to the little vaccum tank (looks
like a black softball, and mounts on the passenger side). Sometimes the hose just
gets soft or kinks and the actuator isn't getting any vaccum.
