A/C system whistle?

Tiny
JASONHARRISON903
  • MEMBER
  • 2017 RAM 2500
  • 6.7L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 110,000 MILES
When operating the vehicle at highway speeds, I have an annoying whistle while the recirc button is active. When I turn recirculate off, the whistle goes away. Am I looking at pulling the dash to replace the actuator, or is there something simpler that I can try?
Thursday, November 21st, 2024 AT 6:32 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
A whistling noise can be tough, it can be caused by a piece of insulation that is now missing, I would try the blend door actuator which will be the easiest fix, here is the location so you can check it out or replace the actuator. Check out the images (below). Please upload pictures or videos in your response of any problems so we can see what to help you with.
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Thursday, November 21st, 2024 AT 12:57 PM
Tiny
JASONHARRISON903
  • MEMBER
  • 2 POSTS
And this would be accessed from behind the glove box, correct?
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Thursday, November 21st, 2024 AT 2:15 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Yes, you may need to remove a trim panel as well. If you get stuck upload images of the part in question and I can help you. Have a good weekend!
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Friday, November 22nd, 2024 AT 12:02 PM

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