Mechanics

INTERMITENT HUMMING NOISE

2008 Lexus ES 350 • 55,000 miles

My car has a intermittet humming sound. It starts at low speed and gets louder as I go faster, but doesn't necessisarily speed up with the revolution of the wheels. 5 mecahnics have looked and can't figure it out. One theory is a bent rim, but the fact that it doesn't evolve to a steady hum as I go faster, quashes that theory. Wheel bearings were changed. The car was damaged from highting a large pot hole. The noise is Whomp, whomp, whomp and gets louder as I speed up.

Hope you can help!
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Dfamul
January 24, 2012.



I would start with checking for a bad wheel bearing.