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1994 Ford Mustang Scratching/metal to metal noise

Tiny
MENDEZ4047
  • MEMBER
  • 1994 FORD MUSTANG
  • V8
  • 2WD
  • MANUAL
  • 113,000 MILES
When I accelerate, or hit a bump, I hear this rotating scratching/metal to metal noise, as the sound of worn brakes would make. If I hold down the brakes while I drive over a bump, I dont hear the noise. Its not a constant noise, its only heard when I accelerate or go over a bump. The noise is coming from my front passenger side wheel. My brakes are good and calipers are good and the dust shield is not getting in the way. What could be the problem?
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Friday, July 31st, 2009 AT 3:26 PM

10 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,133 POSTS
It sounds like you already checked the brakes. Do make sure the brake sensor isn't bent or touching? Are there any marks on the inside of the wheel where something may be rubbing? Also, did you make sure the wheel bearings are tight?
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Friday, July 31st, 2009 AT 5:49 PM
Tiny
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No marks on anything. The wheel bearings come in a hub assembly. Everything seems to be tight. If I remove the wheel bearing assembly, i'll have to replace it. I'm wondering if it is the wheel bearings causing this noise.
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Friday, July 31st, 2009 AT 6:44 PM
Tiny
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That is the only thing left. My original concern was the caliper may have been moving, but that would have left marks in the wheel itself. If the brakes are good, no problems with the backing plate and the sound is like something is rotating, there really isn't anything other that I can think of. I would recommend checking that and let me know what you find.
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Friday, July 31st, 2009 AT 8:15 PM
Tiny
MENDEZ4047
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I had a "ride a long" with me and the noise is coming from under the car where the transmission meets the engine. Thats a whole new can of worms. What could cause the scraping noise when I accelerate?
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Friday, July 31st, 2009 AT 9:13 PM
Tiny
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You're right. That is new. My concern is the clutch or a bad pressure plate.
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Saturday, August 1st, 2009 AT 2:24 PM
Tiny
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Thats what I was thinking. I guess i'll replace both the clutch and pressure plate, since they come as a package for the mustang.
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Saturday, August 1st, 2009 AT 9:02 PM
Tiny
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Make sure the throw out bearing and pilot bearing is good. Also, check the flywheel for wear. I believe you can have it resurfaced if needed rather than a new one.

Once you get the trans out, drain it to make sure there are no metal filings in it. There could even be a bearing bad there.
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Sunday, August 2nd, 2009 AT 12:11 AM
Tiny
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I lifted the car up on jackstands and noticed "rubbing" on the driveshaft. The bracket that holds the e-brake cables broke off its welds, therefore, the e-brake cables hang low and rub on the driveshaft. Darn.
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Sunday, August 2nd, 2009 AT 10:39 PM
Tiny
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It sounds like you have the same luck I do. Is there a way you could bolt it back in place. Maybe you could use a self tapping bolt into the sheet metal.
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Sunday, August 2nd, 2009 AT 11:56 PM
Tiny
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Wow! I just realized which car this was. I was thinking of a different one. Thank god you found it before removing the trans. At least it's a cheaper and much easier fix!
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Sunday, August 2nd, 2009 AT 11:57 PM

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