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vibration under deceleration?

Old 06-05-2015, 02:23 AM
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Hi all,

had this issue for a while and had a search on here, but couldnt find an answer.

basically theres a lot of vibration when decelerating in gear, coming either from the middle or the rear of the car, my mechanic had a look and said it could be the driveshaft or diff.

looking through the forum i can only see info regarding vibration under acceleration or a diff whine, neither of which cover this issue!

any help appreciated.

cheers
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Old 06-05-2015, 02:48 AM
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Original 99 clutch?

That'll be why.
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Old 06-05-2015, 03:08 AM
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Originally Posted by Dembo View Post
Original 99 clutch?

That'll be why.
nope, had the clutch changed last year with lightened flywheel and stage 1 clutch...
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Old 06-05-2015, 03:29 AM
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Clutch buzz?
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Old 06-05-2015, 03:32 AM
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Originally Posted by AlexGJ248 View Post
Clutch buzz?
i wouldnt say its the clutch, as the clutch is perfect when the car is being driven, doesnt slip or anything, and it is relatively new.

the vibration takes over the whole car too, its quite substantial... when i go out later i will test if its speed or RPM dependent as some other threads have suggested
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Old 06-05-2015, 03:35 AM
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Can you get this with worn inner drive shaft cups ?
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Old 06-05-2015, 03:41 AM
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Originally Posted by BenRNBP View Post
Can you get this with worn inner drive shaft cups ?
is this the half shaft thing where you swap the inside parts over from each side?

thats the closest i could see to the issue, as its common on lowered cars too which this is. but again that is under acceleration not deceleration i think...
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Old 06-05-2015, 03:44 AM
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Originally Posted by lukeyboi89 View Post
i wouldnt say its the clutch, as the clutch is perfect when the car is being driven, doesnt slip or anything, and it is relatively new.
The original clutch buzz would happen even though there was nothing wrong with the clutch. It could still be your replacement clutch; I believe some of them still buzz. But that's a buzz rather than a vibration, and would sound like it was coming from under the radio. If your whole car is shaking, it's probably not that.

Does it do it in neutral with braking? If so it's probably more likely suspension related, whereas if it's only in gear it's probably to do with the drive train.
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Old 06-05-2015, 03:52 AM
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Originally Posted by Dembo View Post
Originally Posted by lukeyboi89' timestamp='1433503925' post='23637096
i wouldnt say its the clutch, as the clutch is perfect when the car is being driven, doesnt slip or anything, and it is relatively new.
The original clutch buzz would happen even though there was nothing wrong with the clutch. It could still be your replacement clutch; I believe some of them still buzz. But that's a buzz rather than a vibration, and would sound like it was coming from under the radio. If your whole car is shaking, it's probably not that.

Does it do it in neutral with braking? If so it's probably more likely suspension related, whereas if it's only in gear it's probably to do with the drive train.
thanks for the input

its really hard to define a buzz or vibration but it does sound like a buzz, but its only when in gear and it is quite loud and makes the rear view mirror shake a bit which i dont think a buzz would do? hence why my mechanic stated its probably drive shaft or diff....
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Old 06-05-2015, 01:03 PM
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If someone has swapped the inner CVs over in the past then it could explain it
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