2004 Toyota Sienna has rotating wheel noise (not coming from brakes) from front wheel. Sounds like the wheel bearings are going bad. Noise gets faster in frequency as speed increases.
That is the bearings going bad on it.
Mine turned out to be the INTERMEDIATE bearing on the right drive axel.. $100.00 for new, complete axel and bearing..
A split belt in tire will make noise too! jack up: there should be no play side-toside and up and down when you grab wheel; also wheel usually growls when you are driving and turn one way
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On my 2006 sienna ce, after changing tires, brakes, wheel bearings.. i found the problem. The right side drive axel has an intermediate support bearing up near the lower rear motor mount... $100.00 for entire new axel assembly, even has the bearing pre installed! inside the noise was bad.. outside there was barely a light scraping sound. Problem solved now! I figure that using a carwash with the underside spray, cold water his that bearing causing premature failure!! that is a guess at the early failure of the bearing.... but a sensible one.
It may also explain the similar issue on other front and all wheel drive vehicles with a similar axel design!!
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