4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Rear end noise

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Old 02-17-2010, 01:02 AM
  #1  
Fizzics Boy
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Exclamation Rear end noise

About 1.5 months ago, I noticed a noise coming from my rear. It's not gear whine. It sounds like a cricket chirping. When I installed my gears I put new pinion and carrier bearings in but did not due the axle bearings. This was back in september. Tonight I replaced the axle bearings and seals and the noise is still there. Also put new gear oil in too. The old bearings were on their way out as they were not spinning smoothly at all and the seals were leaking. I'm at a loss as to what could be causing this noise other than maybe a bad pinion or carrier bearing. Maybe someone could shed some light on this noise. Also the gears are dead quiet and do not whine or bang, and have been that day since day 1.
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Old 02-17-2010, 09:46 AM
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mike08
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i think we are in the same boat man. mine makes a loud sound and everyone can hear it.
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Old 02-17-2010, 10:00 AM
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dr.apex
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Originally Posted by Fizzics Boy
About 1.5 months ago, I noticed a noise coming from my rear.
Have you tried pepto bismol?
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Old 02-17-2010, 12:02 PM
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Originally Posted by dr.apex
Have you tried pepto bismol?
lol. Funny. If you consider new gear oil pepto bismol
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Old 02-17-2010, 01:33 PM
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Eagle2000GT
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Is it a squeeking noise when you go around a corner? Mine did that. The clutch pack was bad.
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Old 02-17-2010, 01:48 PM
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Originally Posted by Eagle2000GT
Is it a squeeking noise when you go around a corner? Mine did that. The clutch pack was bad.
No. Does it is a straight line or while turning. Does not matter. The only other thing i can think of is maybe a u joint. I did read that they sometimes and chirp or squeak when they are going bad.
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Old 02-18-2010, 09:43 AM
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mike08
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Originally Posted by Fizzics Boy
No. Does it is a straight line or while turning. Does not matter. The only other thing i can think of is maybe a u joint. I did read that they sometimes and chirp or squeak when they are going bad.
mine does this as well. hopefully i can get it fixed.
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