Dash vents not working
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5th Wheeling
Joined: Nov 2013
Posts: 25
Likes: 2
Dash vents not working
Just noticed on my 2004 F-250 that the only vent working now are the defrost vents at the base of the windshield . When I turn the control to other positions, ie; floor, etc. air only still comes out of defrost vents. A/C, Heat and fan all work, just only out the top of dash. Will probably run truck into local Ford dealer but don't want to here that the whole dash has to come off etc to do repair, anyone have this problem and how did it get corrected? I am the original owner and yes it has the 6.0 diesel in it and have had it's share of the usual issues but I still love it!
FTE Legend
Joined: Jan 2009
Posts: 80,542
Likes: 97
From: Norlina NC
its one of 3 things. The dash switch itself, the vacuum actuator or the vacuum pump.. not sure how hard the actuator is to change. i know the electronic blend doors easy to access behind the glove box. not sure where the vacuum actuator is.. assume its close by... the vacuum pump is under the hood next to the passenger side fender.
i know theres quite a few youtube vids to fix this specific issue though.
i know theres quite a few youtube vids to fix this specific issue though.
Fleet Owner
Joined: Apr 2008
Posts: 24,324
Likes: 5,136
From: 0,0,1
That's typical when there's a loss of vacuum to the HVAC controls. Defrost is the default position of the vacuum actuators.
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