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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


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Old 06-09-2021, 02:05 PM   #1
Angel237
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what can this noise be? transmission?

Recently ive been having this strange noise coming from the tranny tunnel.. change the fluids and it was clean. replaced the clutch and bearings and noise still continues. will try to get a video uploaded but it sounds like a continued metal clunking noise... like taking a bottle against a fence really fast.. only occurs on deccel.
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Old 06-09-2021, 02:13 PM   #2
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Something touching drive shaft?

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Old 06-10-2021, 07:56 AM   #3
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No.. I replaced several parts everything was clear.
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Old 06-10-2021, 07:44 PM   #4
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If it is only occuring on decel, it may be the flywheel making the noise. I have a similarly described noise that only occurs on decel, and it's been there ever since I replaced my flywheel ~30,000 miles ago. Completely stock flywheel, but with a heavier clutch since I'm turbo'd. Never had any issue with drive-ability or anything, just some occasional noise.
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Tcoat (06-11-2021)
Old 06-11-2021, 08:57 AM   #5
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Did you tighten the drive shaft center bearing bolts?

Last edited by blsfrs; 06-11-2021 at 08:58 AM. Reason: wording
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Tcoat (06-11-2021)
Old 06-11-2021, 09:49 AM   #6
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Until we can actually hear something I am going to guess a squirrel is wrapped around the driveshaft and screaming in fear!
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