2011 RX350 humming noise from rear
#1
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My 2011 RX350 has good Michelin Premier LTX with 8-32 threads at rear but, around 50+ mph speed humming noise starts. Car don't have any pull or vibrations, just annoying humming noise, any suggestion or advice will greatly appreciated.
#2
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When did you start noticing the noise? Do you only have the LTX tires in the rear and a different tire upfront? What are the specs of the vehicle all-wheel drive? Mileage? does the noise occur on all types of pavement or just certain ones? I have the LTX on my GM truck and certain pavements are very quiet and others are more noisy.
#5
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If AWD, when did you change the differential fluids, specifically the rear? Otherwise you might have to jack up the rear ,(if 2wd) and spin the wheels by hand to feel/hear for grinding or other noises indicating a bearing issue.
#6
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RX is not unknown to have wheel bearing issues, especially if the vehicle is high mileage. If you don't see any cupping/feathering/deformations on the tire, or feel any unevenness when running your hand flat across the tread of the tire, I think the more likely explanation is a wheel bearing issue that is becoming apparent.
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stanjohn12
IS - 2nd Gen (2006-2013)
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03-20-12 08:48 PM