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Air only comes through the vents, no defrost or floor?

Tiny
DEREKKELTY10
  • MEMBER
  • 2016 LINCOLN MKX
  • 4WD
  • AUTOMATIC
  • 85,000 MILES
Vent Only (Actuator), no defrost or floor. Have read about the issue being an actuator, but unsure the difference between a mode or blend actuator or what is the issue on my vehicle.
Friday, January 20th, 2023 AT 12:05 PM

9 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
This would be an air distribution door actuator which is located just above the gas pedal. Here is the location and instructions on how to replace it in the images below. Please let me know what happens.
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Friday, January 20th, 2023 AT 6:13 PM
Tiny
DEREKKELTY10
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  • 5 POSTS
Any service manual instructions on how to remove the steering column trim below or how to access the part to change?
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Wednesday, January 25th, 2023 AT 10:41 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
Here is what they show us, most of the panels come off with a few fasteners and push clips. Please upload images of the problem so I can help.
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Thursday, January 26th, 2023 AT 4:40 PM
Tiny
DEREKKELTY10
  • MEMBER
  • 5 POSTS
I was able to remove the panels needed and replace the actuator. However, the new actuator is moving when varying options (defrost/floor/vent) are selected, but they are not correct to what is selected. Is there a calibration process?
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Tuesday, June 27th, 2023 AT 7:40 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
I looked through the instructions and it doesn't mention it but please follow this guide to help reset the system:

https://www.2carpros.com/articles/step-by-step-guide-to-reset-your-cars-hvac-system-an-essential-for-every

Please go over this guide and get back to us.

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Wednesday, June 28th, 2023 AT 12:18 PM
Tiny
DEREKKELTY10
  • MEMBER
  • 5 POSTS
Okay, I was able manually check the varying positions of the actuator as different options were selected (vent/defrost/floor) and compare to manually rotating the piece that the actuator moves. Then using a battery and wire - adjusted the actuator to the correct alignment of the selected option so that when installed, it was in correct position. Prior to this, had to manually adjust the piece that the actuator moves, but when different options were selected - it would not be correct.

Thanks for all the help here!
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Thursday, June 29th, 2023 AT 6:02 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
So is the problem fixed?
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Thursday, June 29th, 2023 AT 11:25 AM
Tiny
DEREKKELTY10
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Yes, thank you.
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Thursday, June 29th, 2023 AT 11:26 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,536 POSTS
Thanks for letting us know, we are here to help, please use 2CarPros anytime.
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Friday, June 30th, 2023 AT 9:57 AM

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