Where is this noise coming from?

[cWalk3r]

This is on my e30. So ill be driving for about 10 minutes or longer and il start to hear a humming noise. Kinda sounds like its coming from the front but i can't tell as of yet. but It will sorta just start and then when i swerve left it you can hear it more and then when i swerve right its gone. But... When i swerve left you'll hear it but if i tap the brakes the noise will just go away... Only thing i can think of is a bad wheel bearing because it happens after driving for awhile. Also if i let the car sit for an extended period the noise will be gone.

What could this be? Anyone else have the same problem?

[ahlem]

Power steering is dying? Try some snake oil additive . You are running ATF in there?

[jlevie]

That sounds like a bad wheel bearing or the right side