Question about 2001 Oldsmobile Aurora

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Air blend door actuator

On dash all switches work ac and heat only blows on floor when turn of knob vents on top or windshield vent don't work only bottom vent works no matter what position set on only bottom checked fuses good power all replaced part-- only floor works new switch in dash still -no vents- no vents in windshield work- nothing but floor ac and when switched heat works wont do nothing only floor

Posted by mike on

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Adam greenwald

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  • 7 Answers

Possible bad blend door actuator .some gm cars can be relearned to the new climate control head

Posted on Jul 28, 2013

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5 Related Answers

Anonymous

  • 324 Answers

SOURCE: there is no air blowing out the vents on the dash board when i turn the ac on

you have a bad control unit, the thing you use to switch from one thing to the other, it needs to be replaced.

Posted on Nov 26, 2008

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Anonymous

  • 9 Answers

SOURCE: 98 Olds LLC - AC works but fan air does not blow

If you have a late model GM car and the system is controlled electronically the blend door actuator becomes weak. When this situation occurs it will not move the air direction door inside of the heater/air conditioner plenum. in your case not to the vents Replace the actuator with new and recheck the system. i hope this helps

Posted on Jul 24, 2009

Anonymous

  • 5 Answers

SOURCE: AC Mode Switch on 1998 Intrigue

switch is bad or a bad vaccume to the vent doors that control the air flow

Posted on Aug 04, 2009

davidpenman

David Penman

  • 255 Answers

SOURCE: Vents wont switch to vent/floor or defrost

check all the vacume lines going under dash

Posted on Aug 14, 2009

roniecon

Ronny Bennett Sr.

  • 6927 Answers

SOURCE: Where is the vent / AC blend actuator fuse / relay

It will not be a fuse,the actuator motor is bad,the fuse is tied in with the blower and such,if the blower is working ,then the fuse is good.

Posted on May 31, 2010

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Having problem switching heat control to floor and defrost
I believe it would be blend door actuator problem

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2005 Honda Civic LX - no windshield defrost: AC from all vents, heat to floor, from vents, but when it is switched to defrost, heat doesn't come out- just normal temp air. Any ideas? Please help!
Defrost blend air door may be failing due to vacuum leak, bad check valve or bad actuator.

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Why don't I get heat out of floor vents?
In most cases it is the air blend door inside of dash or a blend door actuator which opens and closes the door...What these do is open and shut to direct the air from Top,center,and floor passage tunnels inside of dash....Or if you are lucky it can be a problem at the control knob that switches it from floor to defrost to vent...You will have to remove control panel and inspect behind it....On some vehicles it can be just a simple worn control knob...I Need to know what type of vehicle and how many miles are on it..before I can guide you through the procedure ....Don't just pull the dash for no reason when it could be simple.....

Dec 03, 2014 | Cars & Trucks

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2002 ford explorer AC and heat blowing in dash, but very weak from the vents
On the motorcraft parts web site, you can blow up
a picture of the HVAC Blend Door Motors & locations,
as well as part numbers

You can get failed motor from Amazon

With knowing where the motors are located, try switching
the air flow modes manually, to see what positions do not work

Then you know what motors to replace

I also have professional scan tool software & can see the codes
for the motors in enhanced data.

The-- Vent Blend Doors-by name

Defrost-up top
Cabin -the vents as you say in the middle & on the sides
Floor
Recirculate-under the glove box
Blend Door -under the dash on your print

Mar 11, 2014 | 2003 Ford Explorer

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Air blows out all vents no matter where it is switched to heat or ac defrost, floor
its called the blend door actuator
its either stuck or or broken or shorted out it is deep in behind the dash located inside the air box where the heater core is and the ac condenser is its a fun job as for you have to rip your dash apart

May 18, 2013 | 2006 Kia Sorento

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Check the fan/fans to see if they are working and the fuses. These are the usual causes of a bad vent

May 09, 2013 | Ford Cars & Trucks

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Ac vents not working
There is a blend door acuator which moves when u change your settings. Its a electric motor. Down under dash, Will need a mech and a heating and cooling diagram to find where the motor is,

Jun 13, 2012 | 2007 Ford Sport Trac Limited

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Ac is blowing out of defrosterandnot panels in the dash. Air is cool cold air will blow out of rear seat panel/vent 1998 ford explored
The most common cause is a bad blend door actuator which controls air flow throughout the cabin. When air flow only flows from 1 section (either floor, vent, or defrost) it's an indication that the blend door actuator is either stuck or broken.

Jun 02, 2011 | 1998 Ford Explorer

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2004 Ford Expedition XLT, front blend door actuator
Hope I was avle to help, glad you up and going.

May 26, 2009 | 2004 Ford Expedition

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Heating system only blows out hot air through the vents
I would look at the air blend doors first, it sound like they are not working or your control in the dash is not working send a signal to them. they work by changing the air from hot to cold or in between.

Avalanche, Sierra And Silverado
  1. Remove the floor air outlet duct extension (1) from the floor duct (2). 0900c152801c9c8a.jpgRemove the floor air outlet duct extension (1) from the floor duct (2)
  2. Disconnect the electrical connection at the blend door actuator (10). 0900c152801c9c8b.jpgBlend door actuator and related components
  3. Remove the blend door actuator mounting screws from the HVAC module.
  4. Remove the blend door actuator as an assembly with the actuator cam. 0900c152801c9c8c.jpgRemove the blend door actuator mounting screws from the HVAC module
To install:
  1. Install the blend door actuator as an assembly with the actuator cam.
    1. Line up the heater/defroster valve lever with the blend door actuator cam slot.
    2. Line up the A/C valve lever with the blend door actuator cam
  2. Install the blend door actuator mounting screw to the HVAC module.
    1. Tighten the blend door actuator mounting screw to 14 inch lbs. (1.6 Nm).
  3. Connect the electrical connection at the blend door actuator (10). 0900c152801c9c8b.jpgBlend door actuator and related components
  4. Install the floor air outlet duct extension (1) to the floor air duct (2).
C/K Series
  1. Disconnect the electrical connector to the mode actuator that is located on the left side of the air distribution case.
  2. Remove the screws.
  3. Remove the adjuster links from the control lever.
  4. Remove the mode actuator.
  5. Adjust the mode actuator by completing the following steps:
    1. Connect the electrical connector to the actuator.
    2. Turn the ignition switch to the RUN position. Allow the self-positioning of the actuator.
    3. Turn the ignition switch to the OFF position.
    4. Remove the actuator from the electrical connection. 0900c152801c9c8d.jpgBlend door actuator-C/K Series
To install:
  1. Install the mode actuator.
  2. Install the screws.
  3. Install the adjuster links to the control lever.
  4. Connect the electrical connector.
  5. Test the circuit operation

Nov 27, 2008 | 2001 Chevrolet Silverado

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