I agree, tires are often the culprit, particularly if worn oddly by previous front-end troubles. Usually an easy diagnosis, simply rotating front-to-back. Last time I had this problem, noise did not go away, but resurfaced at the back. Sometimes, though, it will cure the problem AND salvage use from the offending tire.

Steve

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'91 MB 190E 2.3
'08 RAV4 Ltd 3.5
'83 Lazy Daze m'home 5.7