A/C system whistle?

2017 RAM 2500
110,000 MILES • 6.7L • 6 CYL • 4WD • AUTOMATIC
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JASONHARRISON903
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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?
Nov 21, 2024 at 6:32 AM
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STRAILER
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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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Nov 21, 2024 at 12:57 PM
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JASONHARRISON903
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And this would be accessed from behind the glove box, correct?
Nov 21, 2024 at 2:15 PM
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STRAILER
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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!
Nov 22, 2024 at 12:02 PM