Blend door actuator blowing out of the floor?

Tiny
VEGASBRO702
  • MEMBER
  • 2005 NISSAN SENTRA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 96,900 MILES
I have a 2005 Nissan Sentra and the air is blowing out of the floor and vents. I can not get it to stop blowing out of the floor. I’m guessing my bend door actuator is bad.

I would like advice on how to replace the part and where it is located.
Monday, March 23rd, 2026 AT 12:20 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 55,211 POSTS
Yep, it sounds like the mode blend door is not moving, this is controlled by a cable, can I ask if when you switch the knob that controls the mode does it feel like it is doing anything or is it just spinning with no resistance? I would remove the HVAC panel to see if the cable is moving when you spin the control knob around. Please upload a short video in your response of the problem, so I can see what's going on
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Monday, March 23rd, 2026 AT 5:24 PM
Tiny
VEGASBRO702
  • MEMBER
  • 2 POSTS
The knob is giving resistance like normal. It was working a couple months ago but no longer works now. I will try to get a video if I have time to pull it off.
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Monday, March 23rd, 2026 AT 8:03 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 55,211 POSTS
These mechanisms can have issues because the plastic parts break, pleas go over this video it shows what I am talking about on a similar set up car.

https://www.youtube.com/watch?v=Kawt1EodtFI

Let me know what you find.
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Tuesday, March 24th, 2026 AT 9:04 AM

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