The best way to describe the sound I hear is this: Have you ever heard a fan that is on its last leg and you can hear the rotation (speed up, speed down, loudly) of the fan? This is the sound that I hear coming from the left front tire area. Its not coming from the engine.

This usually happens after I have been driving the vehicle for awhile or after driving at highway speed and then returning to residential speed (25mph).

Will my wheel fall off? It's making me nervous about driving. I have scheduled a visit to my mechanic in a few days. Just wanted to know if anyone else had this problem.

Thanks