5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Mystery noise...help!

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Old 10-16-2004, 05:41 PM
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89Convert
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Default Mystery noise...help!

running around doing errands this morning in my car and after she was fully warmed up I was gettting this odd noise that I couldnt figure out...like a high pitched whine/squeal from the right front (im pretty sure)...dont think it was in the driveline, seemed like from the rotating assembly or maybe even under the dash.... it wasnt the blower motor...or the brakes...what the heck? wheel bearing? puzzled...help!
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Old 10-16-2004, 07:21 PM
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86HOGT
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Default RE: Mystery noise...help!

Sort of sounds like the alternator, if you can get access to a belt tension gauge, see what your belt tension is at, as that can make a whine/squeal. If you want to rule out the engine itself do this; after it is fully warmed up, quick take the belt off then run it shortly to see if it's an accessory making the noise. Right front could be either the alternator or smog pump. Good Luck!
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Old 10-18-2004, 11:49 AM
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89Convert
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Default RE: Mystery noise...help!

it does not seem engine speed sensitive....could it still be the alternator or even belt related...belts are tight....smog pump did cross my mind...????
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Old 10-18-2004, 02:24 PM
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Default RE: Mystery noise...help!

does it make this noise when the car is sitting still or only when it is moving?? could be a bearing going bad in something like the alternator or smog pump too.
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Old 10-18-2004, 03:22 PM
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89Convert
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Default RE: Mystery noise...help!

only when moving...above 35 or soo...funny thing is that when it cooled down a bit (in walgreens for about 10 minutes) it didnt do it anymore...my initial thought was a wheel bearing, but very high pitched, not like the dull roar im used to when a bearing goes...
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Old 10-20-2004, 06:53 PM
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Default RE: Mystery noise...help!

Is it a 5 speed?My throw-out bearing whines like hell
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Old 10-20-2004, 07:35 PM
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Default RE: Mystery noise...help!

5 speed, but the noise is in any gear, or in neutral...when moving, but in or out of gear....
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Old 10-21-2004, 12:02 AM
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Default RE: Mystery noise...help!

some brake pads are built with a little tang on them that when the pad wears down enought, it starts to touch the rotor and make a screeching noise to let you know you need to change the pads. check the front pads and see whether this is your noise maker.
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