HVAC air flow only works on the defrost setting?

Tiny
DPEREZ1000
  • MEMBER
  • 2004 FORD EXPEDITION
  • 4.6L
  • V8
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
The air flow is only coming out on defrost no matter what is selected on the control panel.
Wednesday, October 12th, 2022 AT 7:51 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,192 POSTS
Hi,

Chances are the mode door actuator has failed. This actuator is responsible for the air flow direction. Take a look at this link:

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

What I would do is remove it and see if it responds when you change the air flow direction. If it doesn't, replace it.

I attached the directions below for the removal and replacement. Let me know if this helps or if you have other questions.

Take care,

Joe

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Wednesday, October 12th, 2022 AT 9:41 PM

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