Question about 2005 Volkswagen Jetta

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When turned to defrost, no air comes out of vents to windshield. Air only comes out of vents in dash and floor. I have taken apart compartment behind glovebox and it appears that a glued lever has given way that controls air directions. I have played with it but can not get air to direct out of the top vents onto the windshield. How do I get it reglued and divert the air onto the windshield if that is what is needed. The heater does not work on defrost but works on al other modes.

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  • Anonymous Mar 18, 2014

    the back controls when you turn them on there is no air coming from vents

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The vent flap foam lining has come loose and needs to be removed or reglued . A spray on contact adhesive works best , don't glue the flap to the vent casing.

Posted on Nov 16, 2008

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SOURCE: When turned to defrost, no

I had the same thing happen on my 2000 Sonoma, last week. I quickly found it to be a broken vacuum line. Look between the brake master cylinder and the drivers side fender- up top. Easy to find, there are 3 vacuum lines connected to a tee. One goes towards/ and into the fender itself. On my truck this line was cut due to rubbing on the fender opening. Withthe engine running it was drawing a good deal of air. I put a screw (plug) in the open line and my vent controls now work. Unfortunately I cannot find a vacuum diagram to tell me where the line into the fender ends up.

Posted on Nov 30, 2008

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2 Answers

I have a 2007 dodge 2500 diesel and the heater will only heat up to a very light heat.


Mode Door 1.
a.This door regulates air flow to either the dash vents or defrost/floor. If you have air flowing only through the vents with no defrost or floor, this door is failing. From our experience, this door is usually the first domino to fail. Not sure why, just is.
<!--[if !supportLists]-->4.Mode Door 2.
a.When mode door 1 is set to divert air away from the vents and into the second stage of the system, door #2 chooses whether air goes to the defrost vents to the windshield or out through the floor vents in the passenger and driver's side footwells. Failure is indicated by an inability to choose between defrost and floor.
b.This door turns out to be the most difficult to replace. In order to replace the door, the dash panel has to be removed. It's still better than the dealer fix because you don't have to evacuate the AC system, drain the radiator, and remove the plenum box. But it is more work than the other fixes. When this door breaks, it falls in the down position, blocking the floor vents and diverting all air through the defrost vents. From a safety standpoint, this is good since you'd most likely rather have a clear windshield than warm feet. We suspect that a large percentage of customers will just leave this door unrepaired. You will have heat through the dash vents and to the windshield, just nothing to the floor. It's inconvenient, but you'll have to make the determination if warm feet are worth the extra work to fix the door. An extra pair of socks is easier.

Jan 12, 2013 | 2007 Dodge Ram 2500

1 Answer

My ac unit is working but will not blow air out of the dash vents. The blower is working


Hey man if the blower is working and air is coming from your other vents i have a few ideas.First i would start by checking your vent selection switch something may be stuck where the dash vents open. If the selector is fine you should try checking the ducting behind the dash it could have come apart or simply be cloged where it routes air to your dash. hope that is helpfull.

Aug 11, 2012 | 2004 Chevrolet Tahoe

1 Answer

I have a 99 dodge durango 5.9 there is barely any air coming out of any of my front vents. rear vents ok can feel it out the floor and defrost just not the ones on the dash.


The Dodge Durangos are known for blower motor problems. The blower motor is under the glove compartment/dash in the big black box, and so is the evaporator coil. There is a outside air filter that tends to wear out and break apart. Once this material breaks apart it ends up in the blower motor and can cause the motor to stop turning, or turn slower than normal. You will need to open the blower motor compartment under the dash and clean out any obstructions/trash and check the motor if it spins freely without much resistance. If it resists turning by hand or there is no trash and it still fails to work, you will need to replace this blower motor.

If the motor spins freely and there is no trash, you may just have a bad blower motor resistor or A/C control switch/panel.

Aug 23, 2011 | 1999 Dodge Durango

1 Answer

I have an 01 Jeep Grand Cherokee. When you turn on the air conditioning air does not blow out any of the vents except a small amount of air (cold) will blow out the defroster vents by the windshield. If...


behind the center counsel between the floor and the heater housing is a part that is called the blend door actuator. these usually go bad and have to be replaced.

Mar 15, 2010 | 2001 Jeep Grand Cherokee

3 Answers

When turned to defrost, no air comes out of vents to windshield. Air only comes out of vents in dash and floor. I have taken apart compartment behind glovebox and it appears that a glued lever has given...


I had the same thing happen on my 2000 Sonoma, last week. I quickly found it to be a broken vacuum line. Look between the brake master cylinder and the drivers side fender- up top. Easy to find, there are 3 vacuum lines connected to a tee. One goes towards/ and into the fender itself. On my truck this line was cut due to rubbing on the fender opening. Withthe engine running it was drawing a good deal of air. I put a screw (plug) in the open line and my vent controls now work. Unfortunately I cannot find a vacuum diagram to tell me where the line into the fender ends up.

Sep 06, 2008 | 1999 GMC Sonoma

1 Answer

A/c problem


You either have a bad control, or motor running the air direction door in the front HVAC unit, or a door that is stuck.

The front and rear units are totally separate.

The door directs where the air, cold or hot, should come out, whether it is panel vents, floor, defrost, or any combination of those.

This door and motor are located inside the heater box which usually requires a lot of the vehicle dash assembly to be taken apart to get to these parts.

Aug 28, 2008 | 2000 Ford Expedition

1 Answer

Air condition


Have you checked the diverter doors under the dash??
It sounds like a vaccum hose may have fallen off your vent controller.
I have had similar problems and found that the air WAS moving, but it was all going up through the defrost vents at the windshield.
A quick check of the vac. lines showed that one under the glove box was pulled off.
with the engine running, try setting the air settings to all the options ( vent/floor/defrost..etc..)
See it you can feel or hear the diverters moving under the dash..

Jul 02, 2008 | 1994 Chevrolet Lumina APV

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