Elebaster
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« on: Wednesday, February 09, 2005 - 06:16 AM » |
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Well I've been gone from here for a bit--I guess I just haven't had any time over the pasts 6 months to stop by. Sorry. With that said, I was looking to see if I could get some help to diagnose the sound of a little bit of road sing I am getting out of my e30. The car is in good alignment with balanced wheels and new tires. The problem is that driving at speeds above about 50mph the road sing from the tires is enough to make it difficult to communicate with a passanger. Of course, the wind currents over the car contribute, but it is getting gradually worse, and I really don't have much idea on where to start. The sound follows a wave-like pattern and originates from the rear to mid of the car (not entirly sure, since I can't be driving it at 50mph with my head under there. Any help is appreciated.
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« on: Wednesday, February 09, 2005 - 06:16 AM » |
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Ilir
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« Reply #1 on: Wednesday, February 09, 2005 - 10:23 AM » |
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Well, my mums car made a lot of noise when driving over 30mph, and it turned out to be the wheelbearings. ..
Just jack the car up, and turn the wheels around by hand, if you hear any noise, it could be the wheelbearings. ...
If it's not that, try to exclude anything from the sound (like the engine, the gearbox etc).
(in my mums car i turned of the engine at 30mph - be careful, you don't have powersteering/powerbraking/etc and don't lock the steeringwheel!!! - and it kept on making the noise)
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Ilir Dibrani -- www.bmwheaven. com"Speed has never killed anyone... Suddenly becoming stationary, that's what gets you" (Jeremy Clarkson) |
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DeanP
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« Reply #2 on: Wednesday, February 09, 2005 - 11:49 AM » |
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Did the new noise appear with the new tires? Some are make more noise than others.
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Suffered a BMWectomy
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Elebaster
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« Reply #3 on: Sunday, February 13, 2005 - 05:33 AM » |
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The problem has been with the car since I got it over a year ago and gradually getting worse. The car's noise does not change at all when removing the car from gear and allowing the car to continue in motion (except with the gradual slowing of the car). I will check the bearings soon. Thanks for the help, and any more ideas are appreciated.
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zazo
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« Reply #4 on: Tuesday, February 15, 2005 - 05:17 AM » |
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What tire pressure do you have your tires set to? Anything higher than 35-38 psi could lead to extra noise - not to mention irregular tire wear. Also, what size tire do you run on the car. Lower profile tires tend to be a lot louder. You might think about having your tires rebalanced, too.
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My name is Sue... how do you do... now you gon' die!
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Jeff Seabrook
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« Reply #5 on: Friday, April 22, 2005 - 12:51 AM » |
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that sounds like a wheel bearing issue - that's how mine started - over a year and a half ago, only, that I could hear it faintly at 70mph - coming back home from Atlanta - over the next few months, it got progressively worse.
If you get any shaking under the car under heavy accelleration, you must check the Center Support Bearing on the drivshaft and the Guibo (connects the driveshafte to the tranny)
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