Gustafa Posted June 1, 2022 Report Share Posted June 1, 2022 (edited) My 2011 MKX when I turn on the ac and the vent is on dash, when I go past half way up on the fan speed starts making a loud humming noise (vibration?) When I choose spilt delivery to the dash and floor vents, it doesn’t make this noise when I turn the fan up. It also feels like it’s not blowing as hard as it could? The speed and the amount off air being pushed out does go up but it feels like it’s taking maybe a bit longer to cool down? Here’s a video of it happening. Could this be some interference with the blower and the air direction gate or whatever it’s called or? Resistor issue but only in one vent mode? (it actually makes this noice when you select max ac as well) IMG_3606.MOV Edited June 1, 2022 by Gustafa Additional info Quote Link to comment Share on other sites More sharing options...
1004ron Posted June 1, 2022 Report Share Posted June 1, 2022 Have you checked the cabin air filter? 1 Quote Link to comment Share on other sites More sharing options...
Gustafa Posted June 1, 2022 Author Report Share Posted June 1, 2022 Yes, I replaced it recently. It was making this noise before that. I’ll try it again and remove the filter too. Quote Link to comment Share on other sites More sharing options...
Will2U Posted June 1, 2022 Report Share Posted June 1, 2022 While the filter is out, you might also want to stick a shop vac in and just suck both directions. Maybe something has fallen into the ductwork. ?? 1 Quote Link to comment Share on other sites More sharing options...
Gustafa Posted June 1, 2022 Author Report Share Posted June 1, 2022 20 minutes ago, Will2U said: While the filter is out, you might also want to stick a shop vac in and just suck both directions. Maybe something has fallen into the ductwork. ?? I can try that, just curious why it only happens in the dash vents only position, we shall see. Quote Link to comment Share on other sites More sharing options...
Will2U Posted June 1, 2022 Report Share Posted June 1, 2022 I had a buzzing noise in a previous vehicle and the dealer determined it was just something in the ductwork. On high speed, its flapping sounded like a buzz. Suck and/or blow the dash vents, too. If it's a piece of paper, it may have worked its way through until it got caught. 1 Quote Link to comment Share on other sites More sharing options...
enigma-2 Posted June 2, 2022 Report Share Posted June 2, 2022 Shouldn't be a big deal to pull the blower out and check inside the housing for some foreign material. Something got into the duct, probably through the dash vent. 1 Quote Link to comment Share on other sites More sharing options...
Haz Posted June 2, 2022 Report Share Posted June 2, 2022 The following Blower Motor Removal and Installation procedure is from the 2011 Edge Workshop Manual... Good luck! 3 Quote Link to comment Share on other sites More sharing options...
Gustafa Posted June 2, 2022 Author Report Share Posted June 2, 2022 1 hour ago, Haz said: The following Blower Motor Removal and Installation procedure is from the 2011 Edge Workshop Manual... Good luck! Thank you for posting this, greatly appreciated! Quote Link to comment Share on other sites More sharing options...
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