Hvac making buzzing noise in passenger foot area - Mustang Evolution

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Old 06-06-2016, 03:54 PM   #1
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Hvac making buzzing noise in passenger foot area

Started on Saturday.... The very day my 3 year basic warranty expired. Im hoping it's something I can fix myself.
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Old 06-06-2016, 03:58 PM   #2
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Possibly broken fin on blower motor blades. Pretty easy fix and usually cheap.


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Old 06-06-2016, 04:22 PM   #3
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Thanks, how can I check that?

My vents still blow hard, but the buzzing started when my wife had her vent closed for most of the trip. Now it makes that noise whenever hot or cold is turned on at any fan speed or and vent setting.

Its definitely coming from behind the glove box.
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Old 06-06-2016, 05:47 PM   #4
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It will be accessed under the dash on that side. Usually 3 bolts and a plug to drop it out and you should see easily if there is one broken or cracked.

Cheapest I found one was about $40 but name brand ones about $70

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If any are broke the weight difference causes a vibration.


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Old 06-06-2016, 05:51 PM   #5
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Here is a picture of what it looks like under there.

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Old 06-06-2016, 07:06 PM   #6
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Thats the view from inside the cabin?
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Old 06-06-2016, 07:29 PM   #7
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Does the noise change W fan speed? I have seen actuators make noises

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Old 06-06-2016, 07:31 PM   #8
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Does it happen/change when changing the temp?

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Old 06-06-2016, 07:32 PM   #9
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Quote:
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Does the noise change W fan speed? I have seen actuators make noises

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No its a pretty consistent noise. Like something broke.
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Old 06-06-2016, 07:37 PM   #10
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Does it quit when blower is off?


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Old 06-06-2016, 09:10 PM   #11
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Does it quit when blower is off?


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Yes.

I laid upside down and saw the stuff you describes. The noise was coming from a small round hole in the middle of the fan casing. I put a piece of 3m tape over it and it quieted it completely up. But will this fan eventually fail? Is there anything bad about waiting for it to fail before replacing?
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Old 06-06-2016, 09:13 PM   #12
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Quote:
Originally Posted by wmschoonover View Post
It will be accessed under the dash on that side. Usually 3 bolts and a plug to drop it out and you should see easily if there is one broken or cracked.

Cheapest I found one was about $40 but name brand ones about $70

Attachment 202114

If any are broke the weight difference causes a vibration.


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Thank you! If air still comes out the vents strong am I ok to run it with a broken fan blade?
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Old 06-06-2016, 09:22 PM   #13
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Run it till it quitsπŸ˜€

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Old 06-07-2016, 05:44 AM   #14
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Hvac making buzzing noise in passenger foot area

As easy as it is to check, I'd drop it down and make sure that actually is the issue. But yeah. If that's it... Then run it until it quits. I've never changed one without changing the motor/blade combo so if what vibration is still there doesn't bother you then leave it. I would lol


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Old 06-07-2016, 10:48 AM   #15
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If It were me, I would change it out now. We're heading into the hot summer months and it would be just my luck for it to quit on the hottest day of the summer and the part not being available for a couple of weeks or something. It's a cheap fix and you won't have to deal with it during the summer. Just sayin' . . . . . .
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Old 07-06-2016, 04:38 AM   #16
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Post Causes of an Buzzing Noise

Here I am defining some causes of an buzzing noise

Breaking down compressor – The compressor in your aerating and cooling unit is the piece of your cooling framework that attempts to pressurize and cool the refrigerant in the unit. A humming sound means your compressor may not work appropriately, or that the electrical voltage coursing through your open air aeration and cooling system is not at its right amperage.

Lost or harmed disconnection feet – The compressor in your aeration and cooling system is mounted to the base of the AC unit and sits on little elastic feet (called segregation feet). Over the long haul and after proceeded with utilize, the elastic on the segregation feet once in a while splits and/or breaks down, bringing about the compressor to wind up uneven and creating an uproarious, humming commotion while working.

Solidified AC unit – Even however your aerating and cooling framework is intended to be utilized amid the most sweltering times of the year, AC units regularly solidify up. Solidifying is the aftereffect of refrigerant breaks and can bring about a humming sound to be gotten notification from your unit.

Free parts – Your aerating and cooling unit is an intricate arrangement of moving parts working in a state of harmony to cool your home. On the off chance that a section turns out to be free or is missing (e.g. free orientation), it might bring about different parts of your framework to experience the ill effects of untimely wear and cause the humming clamor you listen.
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