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noise wrrrr wrrrr mechanical 850

I have a 1996 850 turbo sedan automatic trans.165,000 miles . It make a wrrr wrrr wrrr noise when driving...exactly like a bearing would make. The sound is between 45- 75 miles per hour. Here's what I have tried.. Just put in both half shafts, made the car much smoother but didn't stop the sound. Put on different tires, same sound a little different pitch. I have put the car in nuetral and the noise doesn't change pitch or sound any different. The thing that has me stumped; is when I drive around corners or make real hard left or right turns while the sound is happening it doesn't change.? So I can't figure out if it is a wheel hub. Right or left. Had the car up in the air and the hubs seem fine. Could it be a rear hub? Maby the transmission axle bearings, which would make sense. How do you diagnose these, where do you buy them, and how do you install them, besides the obvious like remove axles and axle trans seals. Help! going nuts. Rick








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    noise wrrrr wrrrr mechanical 850

    I had same symptoms for a year before it got loud enough to figure out it was my LF wheel bearing. Did not change appreciably going around curves until 9 months had gone by. Near the end it was more apparent.

    Your mileage may vary.








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      Thank you 850

      This is what I needed to hear. I'm sick of just changing parts. From now on I just want to fix the bad one. Thanks time to bake the donuts. I read alot of you posts. Rick








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        LH hub 850

        Took a chance, figure I have a 50% chance of changing the right hub. So I changed the LH Hub. FIXED Noise gone. Thank you time to bake the donuts








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          LH hub 850

          Excellent. By the way it was an office assistant at my Indy who gave me the advice that turns don't always highlight the problem. It does seem to help to go around turns at a speed where the tires almost break loose, but I don't like that feeling in this car. Also, I had a passenger one day, and without hesitation he said "it sounds like it is coming from the front left." So, maybe that is good advice for people as well - bring along a second set of ears.

          Cheers.







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