C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

universal joint, what sound?

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Old Oct 24, 2001 | 12:32 AM
  #1  
traxx1's Avatar
traxx1
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Racer
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From: glendale Arizona
Default universal joint, what sound?

My 89 roadster has been makeing a sound like an exhaust pipe hitting the x member but I can feel a vibration under drivers side floor board
there is no sound undre exceleration or slowing down and after everything gets to normal operating temp it seems to go away, could this be my universdal joints from the trans?motor mount? loose torque converter? ANYONE/

THANKS :jester :jester
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Old Oct 24, 2001 | 01:35 AM
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BobMachus's Avatar
BobMachus
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From: Sarasota, FL
Default Re: universal joint, what sound? (traxx1)

Hmmm, It could just be exhaust rattle, i am sure that is what mine is.
Bob
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Old Oct 24, 2001 | 01:52 AM
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Default Re: universal joint, what sound? (traxx1)

I'd get the car up on jacks (at least rears), place transmission in neutral (motor off), then spin the rear tires by hand and listen for source of noise, while your down there grab the exhaust and see if its loose.
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Old Oct 24, 2001 | 05:01 AM
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65Z01
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Default Re: universal joint, what sound? (traxx1)

I just had two u-joints replaced in the right half-shaft and the symptom was a "ticking" under light-moderate acceleration at low speed.

Jack the left side (use a safety support) and see if the exhaust is touching the frame or a bolt anywhere.
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