Question about 2009 Buick Enclave

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Air doesn't come out all vents

Air only comes out bottom vents and defrost vents - nothing comes out face vents

Posted by Anonymous on

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 328 Answers

SOURCE: air flow prob

the linkage that runs the blend door isn't working, these are the doors that control hot and cold and air flow to dash floor ect...they are located in the air box behind the dash ................ you may be able to pull the heater controls out of the dash and spot the problem but it's likely that the problem is in the air box itself and removal of the entire dash is required (big job!!!!!!!!!).........if your vehicle uses vacuum to control this (some gms use vaccum and some a cable)you might have a hose disconnected under the hood by the heater fan.........if it's a cable it may be knocked off at the dash controls or at the other end on the heater box..........sometimes removal of the glove box will give you acess to this connection.
hope this helps..........thanks fro choosing FIX YA!

Posted on Jan 04, 2009

  • 13 Answers

SOURCE: the air for the air condition comes out the floor

It sounds like you have a break or pin holes in your vacuum lines, and it not allowing you to switch vents.

Posted on May 10, 2009

  • 1 Answer

SOURCE: heater/ac door actuator isnt workin right. air

Sounds like either the computer that controls the auto climate control has gone out or you could have a vacuum leak. I would definitely check the vacuum leak first. I took my 98 Lesabre to a repair shop several years ago for the same problem. When I picked it up they told me my computer was out and it would cost around $600 to fix. As an alternative, they had unhooked and rerouoted vacuum lines, breaking a tube off the controls under the right side of the dash. They told me that they would have to remove my glove box each spring and fall and reconnect the vacuum lines to change the airflow from floor to dash and vise versa. My fix was to run the lines under the dash just beneath the ash tray and connect shut off valves to the vacuum lines. Now when I need to use the AC I can change the flow of the vacuum by simply turning these two valves so that the flow changes from floor to dash or back. I know this is pretty jack leg but the damage had been done and this has actually worked pretty good.

Posted on Aug 23, 2009

  • 76 Answers

SOURCE: 92 buick park avenue stuck on defrost

Vacuum source under hood is disconnected or broken. look for a THREE WAY CONNECTOR WITH A ONE WAY VALVE.

Posted on May 16, 2010

  • 1252 Answers

SOURCE: A/C won't blow out the dash any more. Was

you have a bad vacuum line some were, it may have come off the motor or cracked...

Posted on May 24, 2011

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2 Answers

On my 2005 Ford Taurus the air conditioning is coming out the defrost vents.


There is a flapper or trap door in the dash board that diverts air flow to various vents, defrost, floor, face, etc. If that stops working it will get stuck in the default position which is usually the defrost vents.

If you have a vacuum operated system you can check the vacuum hose for the system in the engine compartment for integrity. If that is ok then you have to get to the vacuum switch in the dashboard and probably replace it due to leaking vacuum - labor intensive and not cheap.

Any time the dashboard has to be removed you are in trouble money wise.

Aug 31, 2015 | Ford Cars & Trucks

1 Answer

No cold air coming from front vents?


Vent selections are sometimes powered by vacuum, and fail-safe to the defroster position when the flow is disrupted.

May 06, 2014 | 2007 Pontiac G6 GT Convertible

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Nissan sentra air conditioning


The flow switch it change's howthe air flows get a motor manual at auto parts stir about 25 bucs it will tell u what up

Apr 29, 2013 | Cars & Trucks

1 Answer

Heat doesn't blow out of floor vents


Hi Tara,could be your blend door,could be stuck.

Jan 18, 2013 | 2007 Nissan Quest 3.5 Minivan

1 Answer

Defrost, vent will not switch


ck for vacuum leak under dash by drivers side fire wall, and under dash .the defrost floor setting is default when system has problem.

Aug 05, 2012 | 2000 Oldsmobile Silhouette

1 Answer

AC is only blowing through the defrost vents in the dashboard?


I think your problem is the head unit that selects where the air comes out ie. Face, floor, defrost, or hi-level face and floor. If that's not working then it will not let you switch location that you want the air to come out.

Jul 26, 2012 | 2003 Chevrolet Tahoe

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