Air not blowing through front vents

Check for a vacuum leak see picture and look at the vacuum motors see if they are getting vacuum when put on defrost/floor etc.. It cold be a bad control as well. Also the main HVAC blend door actuator could be out here are two guides to help with and diagrams below to show you the location on your car.

https://www.2carpros.com/articles/replace-blend-door-motor

and

https://www.2carpros.com/articles/air-vents-stay-in-the-defrost-position

Check out the diagrams (Below). Please let us know what happens.

See if the motor gets vacuum, it may have easier access from driver's side.

Turn the air conditioner on or what ever is not working and pull line off and put your finger over it to see if it has vacuum if it does then reinstall line to see if vacuum motor will move the door.

Make sure to see if the vacuum motor is working the linkage or it may be a broken door and not moving.

Hello,

This sounds like a problem with the automatic zone control has gone bad and needs to be replaced. Here is a wiring diagram (below) so you can see how it is wired.

It might be good to check the ground wires for the system and the fuses.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Please let us know what happens, we are interested to see what it is.

Cheers, Ken

Hi
In default mode controls are vacuum operated may have lost vacuum check reservoir under battery see if hose connected and holding vacuum. if good maybe master select switch or servo faulty.Removal of control panel is needed to check operation of master switch. if servo instrument panel removal maybe needed.
Hope this helps

Heres a couple guides for you to read, they will help

https://www.2carpros.com/articles/low-or-no-air-flow-from-vents

https://www.2carpros.com/articles/air-vents-stay-in-the-defrost-position

Attached below you will find the vacuum diagram and actuator locations for you HVAC system

I really suggest you get the most helpful thing available.....see what i have been using for years for my "babies" in my 1st link

Http://www.2carpros.com/questions/2007-ford-taurus-tune-up

This may sorta help you understand what might be going on with your complex hvac system...(i'm not familiar with yours....but this link may help you---i think it's a playlist, more than one video, so don't "harp" on the 1st one!

Http://www.youtube.com/watch?v=ccuzouqw6ms&playnext=1&list=pl7a2b69a3c0a6f144&feature=results_main

The suggestions down the side as well as changing my search words may get you other related hits

Let me know if this helped at all

The medic

There is a cabin air filter. It is behind the glove box area. I'm not sure I understand the other question.

There is a plate on the bottom of the airbox that holds the cabin air filter. Check fuses, vacuum lines, and cables under the dash at the heater and air controls.

I assume it is an automatic climate control system. It is all electronic controlled. It could be a stuck or bad motor for operating the direction of flow. Not something you can check unless you are familiar with this system. A shop with a scan tool can look at the hvac module for any codes and manipulate the mode doors for operation. It may require removal of the dash to check the mode door itself.
I suggest a shop for help

Roy

Check vacuum

Item Part Number Description
1 18A318 Vacuum Control motor � panel/defrost door
2 18A478 Panel/Defrost door (full vacuum position)
3 � Defrost airflow
4 � Side window demister airflow
5 18B545 Temperature blend door (full heat position)
6 19860 A/C evaporator core
7 19A813 Air inlet duct door (full vacuum position)
8 � Outside air inlet
9 18A318 Vacuum control motor � air inlet duct door
10 � Recirculated air inlet
11 19805 Blower motor
12 � Vacuum to emission control
13 � Vacuum from the engine intake manifold
14 19A563 A/C vacuum check valve
15 19A566 A/C vacuum reservoir tank and bracket
16 19B888 A/C-heater function selector switch
17 18476 Heater core
18 18A559 Floor/panel door (full vacuum position)
19 � Floor airflow
20 18A318 Vacuum control motor � floor/panel door
21 � Panel vent airflow