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

Th700 with strange "noise" ?

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Old Apr 6, 2002 | 10:45 AM
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Default Th700 with strange "noise" ?

I have noticed that when the car is in D, I have a ratteling metalic sound from under the car, sound like something is loose. The sound disapear when putting the tranny in P or N. The sound comes and goes but only when in D or [D]. Could it be something with the TC?

regards


[Modified by devilfish, 5:05 PM 4/6/2002]
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Old Apr 6, 2002 | 07:05 PM
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Default Re: Th700 with strange "noise" ? (devilfish)

tt ?
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Old Apr 6, 2002 | 07:47 PM
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Default Re: Th700 with strange "noise" ? (devilfish)

If you do not notice a difference in performance, I would guess that it is a loose bracket or exhaust heat shield. Putting the car in gear causes extra vibration in the drivetrain which amplifies any vibration from a loose part.

Jack up the car frist and check for anything loose. It may be a cheap fix.

:yesnod:
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Old Apr 7, 2002 | 12:57 PM
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Default Re: Th700 with strange "noise" ? (Sharky Guam)

could this be something to worry about?
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Old Apr 7, 2002 | 01:34 PM
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Default Re: Th700 with strange "noise" ? (devilfish)

I have noticed that when the car is in D, I have a ratteling metalic sound from under the car, sound like something is loose. The sound disapear when putting the tranny in P or N. The sound comes and goes but only when in D or [D]. Could it be something with the TC?

regards


[Modified by devilfish, 5:05 PM 4/6/2002]
My car was making the same kind of sound only in D and it turned out to be the clamp coming loose that holds the tube coming from the catalytic convertor. I had to tighten it every 6 months or so until I just took the damn thing off and I haven't had a rattle since, that was over a year ago.

Rich
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Old Apr 7, 2002 | 02:32 PM
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Default Re: Th700 with strange "noise" ? (snydcat)

could be. 2 weeks ago I had my exhaust down. So it could be the "tube" :) thanks
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