My 2002 f150 4x4 5.4 has started making a grinding noise in the front end intermittently and when I turn or swerve to the left. It’s not a loud, as in gears or spines grinding, but a low growl more like wheel bearings grinding. It does not make the noise when braking or when going in a straight line, so I don’t think it is the brakes.

Thanks for your help!
Ron

 

I would check the front wheel hubs

 

Wheel hubs had the same issue...