LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

weird sound under the car?????please help!!!

Old Apr 14, 2003 | 08:17 PM
  #1  
cridom's Avatar
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Angry weird sound under the car?????please help!!!

i have a sound under my car very odd but when i floor the clutch it stops. seems to be comming from the tranny (m6)
thanks
my car has only 48,xxx miles
Old Apr 14, 2003 | 08:19 PM
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Tranny mount, stay away from ES... my car vibrates like hell.
Old Apr 14, 2003 | 08:26 PM
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is that what they call trans mount? whats 'es'?
Old Apr 14, 2003 | 08:37 PM
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Yeah i sort of have the same problem you do. When the clutch is out i can hear a noise that sounds like its coming from my tranny. When i press the clutch in it goes away. Also my shifter moves like crazy. I just put a new clutch in the car hopefully i didn't mess up when putting the tranny back in.
Old Apr 14, 2003 | 11:02 PM
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yeah, check your tranny mount. it is by the rear of the tranny. is is a rectangular rubber piece held on by some metal . es is energy suspension. energy suspension is known for their polyurethane bushings. polyurethane bushings tend to have more vibrations with them but they will last.
Old Apr 14, 2003 | 11:10 PM
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Don't forget about the Throwout Bearing and Pilot Bearing...
Old Apr 14, 2003 | 11:11 PM
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so is es good?
whats the best brand?
Old Apr 14, 2003 | 11:48 PM
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I've got a 1LE GM Factory Trans Mount... works good after years of abuse. No complaints.
Old Apr 15, 2003 | 02:25 AM
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What about the pilot bearing would make it shake like that. Because i replaced the pilot bearing when i replaced the clutch. Could i of put it in wrong?
Old Apr 19, 2003 | 05:50 PM
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The pinion nub on the input shaft of the M6 (Really it is a T56 Borg Warner) can ding the side of the pilot bearing when mating the trans to the engine. This "nick" could cause a burr which would wear your input shaft pinion nub. This wear would eventually wear down the input shaft nub and increase the diameter inside the pilot bearing causing excessive clearance. This would eventually "chatter" and cause excessive noise in the trans except when the clutch is pressed.

It would also be damaging the input shaft which will ultimately have to be replace... which requires a trans rebuild.

I've had success with emory cloth and polishing the nub smooth removing the sharp edges before installing. Seems to work and doesn't "catch".
Old Apr 19, 2003 | 10:01 PM
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today i raced and at about from 70-100 my pro 5.0 started sounding loud
and also when i shift i hear this kicking or click noise in my rear end or tranny?
what could that be?
Old Apr 19, 2003 | 10:10 PM
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Originally posted by cridom
so is es good?
whats the best brand?
ES is a brand. (Energy Suspension as was previously said).
Old Apr 20, 2003 | 12:10 PM
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Tough to tell without hearing it. Is it a separate issue that than the noise up front?
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