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Join Date: Nov 2003
Location: Houston, TX
Posts: 6
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What Is That Noise?!?!?!
My '96 328i has a high pitch squealing noise coming from underneath the car somewhere right in between the engine and the transmission- close to the flywheel. Car seems to run fine except for the noise but its staying in the garage until I can figure this out. My guess is that something is rubbing against the flywheel.
Anyone? |
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09-26-2005, 07:57 PM
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Belts and belt tensioners are the first thing I would check. But wait... You said between the engine and tranny?
How old is your clutch?
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HPDE Instructor (BMW / PCA / Apex) Here: 1997 M3/4 Byzanz/Magma ~ 2006 Yamaha R6 ~ 1997 R1100RT ~ 1991 Ford F-150 5.8l ~ 2015 Kia Optima Gone: 2001 330i Silver/Grey ~ 98 Camry V6 ~ 97 Camry I4 ~ 97 Mazda 626 I4 ~ 93 Sentra SE-R ~ 88 Toyota Truck I4 |
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09-27-2005, 06:09 AM
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Location: Houston, TX
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Yeah that was what I thought at first too, It sound like a belt squealing, but the sound is nowhere near the belt. I just got the car about 3 months ago but its an automatic.
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09-27-2005, 06:56 AM
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Does it chage with RPM? Does it change when in or out of gear? What about while in motion?
__________________
HPDE Instructor (BMW / PCA / Apex) Here: 1997 M3/4 Byzanz/Magma ~ 2006 Yamaha R6 ~ 1997 R1100RT ~ 1991 Ford F-150 5.8l ~ 2015 Kia Optima Gone: 2001 330i Silver/Grey ~ 98 Camry V6 ~ 97 Camry I4 ~ 97 Mazda 626 I4 ~ 93 Sentra SE-R ~ 88 Toyota Truck I4 |
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09-27-2005, 06:59 AM
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does the sound change if you put some pressure on the clutch pedal or depress it slightly? Could be the release bearing that is rubbing against the pressure plate
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09-27-2005, 09:06 AM
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Well the sound is like a real loud, high pitch "squeak squeak squeak" and it does increase(or go faster) with the rpms. Whether or not your in gear, its the same though. Its also not a stick shift. It sounds VERY similar to a belt problem- in fact thats immediately what I thought it was but once i got underneath there its a different story.
Everything else is fine with the car except for the noise, has this ever happened to anyone?- its definitely a first for me. |
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09-27-2005, 01:00 PM
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Join Date: Sep 2003
Location: Portland, OR
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When you say, 'squeak, squeak, squeak', are you talking about repeated discrete squeaks, or a long, continuous squeal?? If it's repeated squeaks, then you've got something stuck up under there that's repeatedly rubbing against the torque converter or flywheel. Is there a cover that you can take off and look up in there with a drop light or something??
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09-27-2005, 02:55 PM
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Exactly! yeah its repeated discrete squeaks and I've been trying to get in there but theres only one little hole down by the flywheel where you can see in- but there doesn't seem to be anything touching it. I'm about to check again...
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09-27-2005, 03:33 PM
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Location: Portland, OR
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It sounds pretty minor, but if you can get a high pressure hose nozzle up there, you may be able to flush it out. Hmm... trying to think what could be up in there to cause that kind of a sound... it's not a 'clang' like metal, eh? Not a 'tick' like something slapping, but rather a squeak like a rubber or polymer piece. Hmm... wish I had an exploded view of that assembly.
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09-27-2005, 04:51 PM
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1997 BMW M3 3.2L I6
1992 BMW 318IS 
