Sign up to remove ads. We'd love to have you amongst our ranks! Just click the Register button below!

lincoln forums   lincoln forum
Direct Links: MKZ | MKS | New Continental (Old) | MKT | MKX | MKC | Navigator | Nautilus | Town Car | LS
Lincoln Forum: Town Car HVAC blend door actuator replacement
Page 1 of 2 12 LastLast
Results 1 to 25 of 42
  1. #1
    Town's Avatar
    Town is offline Senior Member My Lincoln(s): 2017 Lincoln Continental Reserve 2.7 AWD; 2007 Lincoln Town Car Signature Limited (sold)
    Join Date
    Jan 2013
    Location
    Ottawa Ontario Canada
    Age
    73
    Posts
    3,226

    Town Car HVAC blend door actuator replacement

    Remove this ad
    The 1992 and up models of the Town Car use an electronically controlled actuator (motor and sensor) to position the blend door which allows a varying amount of heated air into the HVAC air flow. Most models, except for the 1998 model and the 2003 and up models require the dash to be removed for access to the blend door. The blend door actuator problem usually shows up as a failure to vary the HVAC air temperature even though both heater hoses are hot. A failed actuator can make a tapping or ticking noise. The problem can be confirmed through the EATC self test (usually code 24 or 25) which can be found in another thread in this tech forum.

    Attached is the procedure for the 1998 model to remove the passenger air bag and replace either the recirc actuator (for fresh air or cabin air input to the HVAC) or the blend door actuator. The negative terminal on the battery must be removed for at least a minute (Ford's recommendation) to allow the capacitors in the supplemental restraints system to discharge. Since such a discharge would be catastrophic it may be prudent to leave the battery disconnected for 5 minutes or more.

    It should be noted that the blend door itself may have failed which is usually noted as a missing or broken actuator drive axle coming up from the plenum. In this case the plenum will need to be replaced, requiring the dash to be removed.

    Good luck.
    Attached Files Attached Files

  2. #2
    Town's Avatar
    Town is offline Senior Member My Lincoln(s): 2017 Lincoln Continental Reserve 2.7 AWD; 2007 Lincoln Town Car Signature Limited (sold)
    Join Date
    Jan 2013
    Location
    Ottawa Ontario Canada
    Age
    73
    Posts
    3,226

    2003 and up blend door actuator replacement

    The 2003 models and above have dual blend door actuators so that the driver and front passenger have separate temperature control. The rear seat passengers receive air through the rear passenger duct from the driver side BDA and temperature setting. Both BDA's are located in the center stack and accessible without removing the dash. Attached are the procedures to replace the LH (driver side) temperature blend door actuator (BDA) and the RH (passenger side) temperature blend door actuator (BDA).

    Good luck.

  3. #3
    Town's Avatar
    Town is offline Senior Member My Lincoln(s): 2017 Lincoln Continental Reserve 2.7 AWD; 2007 Lincoln Town Car Signature Limited (sold)
    Join Date
    Jan 2013
    Location
    Ottawa Ontario Canada
    Age
    73
    Posts
    3,226

    1999 thru 2002 blend door actuator replacement

    Attached is the procedure to replace the blend door actuator on a 2001 model Town Car. The procedure is the same for the 1999 thru 2002 models. The steering column is not usually separated but unbolted and lowered with the steering wheel to rest on the driver's seat. If the steering column is separated from the lower steering shaft then it will likely rotate and damage the clockspring.

    Good luck.
    Last edited by Town; 01-24-2013 at 09:26 PM. Reason: Forgot to add the steering column procedure

  4. #4
    Town's Avatar
    Town is offline Senior Member My Lincoln(s): 2017 Lincoln Continental Reserve 2.7 AWD; 2007 Lincoln Town Car Signature Limited (sold)
    Join Date
    Jan 2013
    Location
    Ottawa Ontario Canada
    Age
    73
    Posts
    3,226

    1995 HVAC Blend Door Actuator (BDA) replacement

    Attached are the procedures to remove the Instrument Panel and replace the BDA. The steering column should not be separated but lowered with the steering wheel onto the front seat. Separating the steering column will allow the steering wheel to rotate and likely damage the clock spring, etc.

    Good luck.
    Attached Files Attached Files

  5. #5
    Town's Avatar
    Town is offline Senior Member My Lincoln(s): 2017 Lincoln Continental Reserve 2.7 AWD; 2007 Lincoln Town Car Signature Limited (sold)
    Join Date
    Jan 2013
    Location
    Ottawa Ontario Canada
    Age
    73
    Posts
    3,226

    1996 TC Blend Door Actuator (BDA) replacement

    Attached are the procedures to remove the instrument panel and steering column to replace the BDA (Blend Door Actuator). Do not separate the steering column, lay it down so steering wheel rests on the seat. Separating the steering column will allow the steering wheel to rotate and likely damage the clock spring, etc. These procedures are much the same as the 1995 model, but seem better explained, and with more diagrams.

    Good luck.

  6. #6
    Town's Avatar
    Town is offline Senior Member My Lincoln(s): 2017 Lincoln Continental Reserve 2.7 AWD; 2007 Lincoln Town Car Signature Limited (sold)
    Join Date
    Jan 2013
    Location
    Ottawa Ontario Canada
    Age
    73
    Posts
    3,226

    1992 TC BDA replacement

    The Blend Door Actuator (BDA) replacement for the 1992 Town Car involves removing the Instrument Panel to provide access to the BDA and its 4 retaining screws. These two procedures are attached.

    There is a report that this approach (factory procedure) does not allow adequate access to the 2 BDA screws closest to the firewall and their tabs on the BDA need to be removed for the BDA to fit in place (apparently this works OK). It has been recommended to move the plenum back from the firewall to provide access to these 2 screws or to remove the plenum. Since removing the plenum would allow replacement of the heater core (on this 20 year old car) it may be worthwhile. The Plenum remove and instal procedure has been added to cover this option.

    Good luck.

  7. #7
    Join Date
    Jan 2012
    Location
    Wauwatosa, WI
    Posts
    38
    Is this limited to just towncars or do same year continentals and mark viii's subject to the same blend door issues ?

    Thanks

  8. #8
    Town's Avatar
    Town is offline Senior Member My Lincoln(s): 2017 Lincoln Continental Reserve 2.7 AWD; 2007 Lincoln Town Car Signature Limited (sold)
    Join Date
    Jan 2013
    Location
    Ottawa Ontario Canada
    Age
    73
    Posts
    3,226
    I would think so, but I don't know for sure. What are you driving so I can look it up?

  9. #9
    Join Date
    Jan 2012
    Location
    Wauwatosa, WI
    Posts
    38
    1998 continental

  10. #10
    Town's Avatar
    Town is offline Senior Member My Lincoln(s): 2017 Lincoln Continental Reserve 2.7 AWD; 2007 Lincoln Town Car Signature Limited (sold)
    Join Date
    Jan 2013
    Location
    Ottawa Ontario Canada
    Age
    73
    Posts
    3,226
    Your 1998 Lincoln Continental has an HVAC that functions much the same as the Town Car of the same year, so I would think the same problems apply. It has an Electronic Automatic Temperature Control (EATC) module to regulate most aspects of the HVAC through sensors, electrical circuits and vacuum circuits. The EATC controls an electronic blend door actuator (BDA) to vary the temperature of air in the plenum. The EATC uses 4 vacuum control motors to position the 4 doors for Recirculated/Fresh Air intake, Floor, Defrost/Panel and the rear passenger area. The procedures to deal with any problems in your Continental would be quite different since the packaging of the dash is completely different from what I have seen.

    The EATC self test feature will allow any diagnostic trouble codes (DTC) to be displayed on the EATC. I will post that procedure in the general section for the Continental.

    I would be interested in learning more about the Continental, so we shall see what you need for procedures, and go from there.

  11. #11
    Town's Avatar
    Town is offline Senior Member My Lincoln(s): 2017 Lincoln Continental Reserve 2.7 AWD; 2007 Lincoln Town Car Signature Limited (sold)
    Join Date
    Jan 2013
    Location
    Ottawa Ontario Canada
    Age
    73
    Posts
    3,226
    Quote Originally Posted by Town View Post
    The 2003 models and above have dual blend door actuators so that the driver and front passenger have separate temperature control. The rear seat passengers receive air through the rear passenger duct from the driver side BDA and temperature setting. Both BDA's are located in the center stack and accessible without removing the dash. Attached are the procedures to replace the LH (driver side) temperature blend door actuator (BDA) and the RH (passenger side) temperature blend door actuator (BDA).

    Good luck.
    Attached are pdf versions of the BDA replacement procedures for the 2003 and up Town Car.

    Good luck.

  12. #12
    Join Date
    May 2013
    Posts
    3
    I'm about to embark on this journey on my '96. My primary question relates to dropping the steering column - how much stays attached when the wheel just ends up resting on the seat? Obviously you skip pulling the armature itself, but does the airbag have to come off?

  13. #13
    Town's Avatar
    Town is offline Senior Member My Lincoln(s): 2017 Lincoln Continental Reserve 2.7 AWD; 2007 Lincoln Town Car Signature Limited (sold)
    Join Date
    Jan 2013
    Location
    Ottawa Ontario Canada
    Age
    73
    Posts
    3,226
    No, the airbag stays. The wiring is unplugged from the column. Don't disconnect the steering shafts, allow the column and shafts to lower. If the steering shafts are disconnected the steering wheel can rotate and damage the clockspring.

    Good luck

  14. #14
    Join Date
    May 2013
    Posts
    3
    Quote Originally Posted by Town View Post
    No, the airbag stays. The wiring is unplugged from the column. Don't disconnect the steering shafts, allow the column and shafts to lower. If the steering shafts are disconnected the steering wheel can rotate and damage the clockspring.

    Good luck
    Well that's certainly going to make the job easier

  15. #15
    Join Date
    May 2013
    Posts
    3
    Quote Originally Posted by Town View Post
    No, the airbag stays. The wiring is unplugged from the column. Don't disconnect the steering shafts, allow the column and shafts to lower. If the steering shafts are disconnected the steering wheel can rotate and damage the clockspring.

    Good luck
    -- double post ---

  16. #16
    Join Date
    Oct 2013
    Posts
    1
    Hi Town, I pm you about the PDF for the 2000 town car heater air plenum. I am trying to remove the plenum but it seems it is stuck on the right side so if you have a PDF picture of the 2000 town car it would be great. I dont want to just rip something off.

    Thank you

  17. #17
    Town's Avatar
    Town is offline Senior Member My Lincoln(s): 2017 Lincoln Continental Reserve 2.7 AWD; 2007 Lincoln Town Car Signature Limited (sold)
    Join Date
    Jan 2013
    Location
    Ottawa Ontario Canada
    Age
    73
    Posts
    3,226
    Attached is the procedure to remove the plenum on your 2000 model.

    Good luck.
    Attached Files Attached Files

  18. #18
    Join Date
    Nov 2013
    Posts
    1
    I own a 2005 Lincoln Town Car Signature Limited. Are the instructions to replace the Blend Door Actuator - RH (Passenger side) the same as the ones listed below for the 2007 Lincoln Town Car?

  19. #19
    Town's Avatar
    Town is offline Senior Member My Lincoln(s): 2017 Lincoln Continental Reserve 2.7 AWD; 2007 Lincoln Town Car Signature Limited (sold)
    Join Date
    Jan 2013
    Location
    Ottawa Ontario Canada
    Age
    73
    Posts
    3,226
    Quote Originally Posted by Jer View Post
    I own a 2005 Lincoln Town Car Signature Limited. Are the instructions to replace the Blend Door Actuator - RH (Passenger side) the same as the ones listed below for the 2007 Lincoln Town Car?
    Yes, should be the same for all 2003 and up models.

    Good luck.

  20. #20
    TownCars1's Avatar
    TownCars1 is offline Senior Member My Lincoln(s): 2006 LTC Executive 100" stretched Tiffany Limo ("418" chassis)
    Join Date
    Feb 2013
    Location
    Houston/TX
    Posts
    508
    Quote Originally Posted by Town View Post
    The 2003 models and above have dual blend door actuators so that the driver and front passenger have separate temperature control. The rear seat passengers receive air through the rear passenger duct from the driver side BDA and temperature setting. Both BDA's are located in the center stack and accessible without removing the dash. Attached are the procedures to replace the LH (driver side) temperature blend door actuator (BDA) and the RH (passenger side) temperature blend door actuator (BDA).

    Good luck.
    I have been working on the passenger side, and these instructions make it look far too easy. I had to unscrew the cover for the hoses to give more room to get out the actuator, and it's still very hard to get it out. Once I got it out, I could then see that the Ford dealer gave me the wrong part. Getting the old actuator back in is not easy at all. The blend door is spring operated and it's very hard to get the actuator back in because of the needed alignment.

    I would also recommend undoing the 2 screws holding the glovebox hinge so you can completely remove the glovebox for a little more room.

  21. #21
    Town's Avatar
    Town is offline Senior Member My Lincoln(s): 2017 Lincoln Continental Reserve 2.7 AWD; 2007 Lincoln Town Car Signature Limited (sold)
    Join Date
    Jan 2013
    Location
    Ottawa Ontario Canada
    Age
    73
    Posts
    3,226
    Quote Originally Posted by TownCars1 View Post
    I have been working on the passenger side, and these instructions make it look far too easy. I had to unscrew the cover for the hoses to give more room to get out the actuator, and it's still very hard to get it out. Once I got it out, I could then see that the Ford dealer gave me the wrong part. Getting the old actuator back in is not easy at all. The blend door is spring operated and it's very hard to get the actuator back in because of the needed alignment.

    I would also recommend undoing the 2 screws holding the glovebox hinge so you can completely remove the glovebox for a little more room.
    I did that job with the dealer mechanic. It did not require anything being removed that the procedure did not call for. I found it a very simple job and took hardly any time at all.

    Sorry things did not work out for you as well as for me.

    Good luck.

  22. #22
    Join Date
    Nov 2013
    Posts
    1
    Right now I'm working on a 1998 Lincoln Town Car Executive. The problem I'm having is that no matter what position you set the air to blow out, it stays blowing out by the windshield. It wont blow through the dash vents or the floor. I've got it somewhat tore apart, but not sure what the exact problem is I'm looking for

  23. #23
    Town's Avatar
    Town is offline Senior Member My Lincoln(s): 2017 Lincoln Continental Reserve 2.7 AWD; 2007 Lincoln Town Car Signature Limited (sold)
    Join Date
    Jan 2013
    Location
    Ottawa Ontario Canada
    Age
    73
    Posts
    3,226
    Welcome.

    The mode doors for the floor and panel/defrost are operated by vacuum motors. When the motors fail or there is no vacuum the default position for the mode doors is defrost. All the air is directed out the defrost vents and the floor and panel vents are closed. This thread deals with the blend door actuators that control the temperature of the air, and not where it is distributed.

    We don't have a thread in the Lincoln Tech forum to diagnose a problem with the vacuum motors and replace them if necessary. There is a vacuum cannister fed by a non return valve to maintain vacuum that is used for the vacuum motors. The vacuum is routed to the rear of the EATC module where the vacuum is distributed to the two motors as full or partial to allow one or more doors to be opened at the same time.

    If you start a thread in the Town Car forum then we can go through the diagnostics and fix whatever is not working. I will get all the procedures that you need.

    Good luck.

  24. #24
    jimisbell's Avatar
    jimisbell is offline Senior Member My Lincoln(s): 2007 Town Car Signature Limited and 1956 MKII Continental, technically NOT a Lincoln
    Join Date
    Aug 2013
    Location
    Ingleside, Texas, United States
    Age
    81
    Posts
    131
    .The bubbling noise is under the right side of the dash when I turn on the key after being off all night. I dont even have to start the car, so that kills the idea of refrigerant bubbling....

  25. #25
    Town's Avatar
    Town is offline Senior Member My Lincoln(s): 2017 Lincoln Continental Reserve 2.7 AWD; 2007 Lincoln Town Car Signature Limited (sold)
    Join Date
    Jan 2013
    Location
    Ottawa Ontario Canada
    Age
    73
    Posts
    3,226
    Remove this ad
    Hi jimisbell,

    I guess it depends on what the sound of bubbling is like and how one eliminates the possibility of an actuator problem from the possibilities.

    Sounds like the intake air door (recirc door) actuator which is located farther to the right than the passenger blend door actuator which is attached to right side of center dash stack. The recirc door actuator is behind the suspension module which is behind the glove box. If the recirc door actuator is a problem then I would expect it to show up on the EATC self test. Did you run that recently?

    Good luck

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •