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Royksopp 02-02-2013 01:55 AM

transmission whistle???
i have a bmw e36 325is (m3 swap from 98), i just had a small leak fixed on my transmission, and had a new hanger bearing installed aswell (completely shredded). From a cold start, in all the gears i heard a whistling noise coming from my transmission, but when i clutch in, the noise stops. it seems to occur when under load. When my car is fully warmed up the noise stops. i did some research and no solid explanations. before i got everything fixed it never had made that noise.

has anyone had this problem?


E36is 02-02-2013 06:55 AM

few things come to mind:

need a new clutch/flywheel
need a new throw out bearing

Royksopp 02-02-2013 11:40 AM

okay, ill defiantly look into that.

Royksopp 02-02-2013 11:54 AM

could it possibly the type of fluid used aswell? my clutch seems fine, not slipping or anything. because once my car is warmed up it goes away..

E36is 02-02-2013 12:34 PM

dont think fluid will cause that noise.

Royksopp 02-02-2013 01:07 PM

i was reading on, and it could possibly be an input shaft bearing.

Lurkmei$ter* 02-02-2013 02:34 PM

Judging by your symptoms my number one suspect would be the input bearing on the diff.
Seen this issue quite a few times.

Royksopp 02-02-2013 05:49 PM

im probably going to call RMP and have them diagnose this problem.

5style 02-03-2013 12:00 PM

clutchy :)

JINT 02-03-2013 12:33 PM

Input shaft bearing on the tranny. Get M0S2 Anti-friction paste for gears by Lubro Moly, squize it into the tranny and the noise will go away.

Royksopp 02-03-2013 12:54 PM

Where can you get this paste???

nate_s89 02-03-2013 02:54 PM

Definitely bearing, I had the exact same problem. Mine was the counter shaft bearing though. Do you hear the noise in 5th gear?

Royksopp 02-03-2013 03:19 PM

yes i did, in all the gears. i have another transmission that i got earlier this week, if it comes down to it, ill just have the other one swapped out.

JINT 02-04-2013 01:32 PM

you can buy the paste at Automaster Trading shop. It's on 1170 Sheppard ave West, Unit 27. It's like 10-15$

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