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1993 BMW 325i Question: what is this loud sound underneath the rear of my car when I drive ?

 

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got tobe classic, Dallas, TX, April 14, 2013, 11:22
 Rookie

the faster I drive the louder it gets

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  • Answer #1

    April 15, 2013, 19:49
     Master

    Bad tire wear (cupping on inside tread?). Rub your hand over the tread in the direction of rotation and see if it has high/low spots.

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