Why should I know?
If this noise changes pitch when turning left or right, it's a wheel Bearing that is failing...
If it is a thumping and a front wheel drive car, it is probably one of the axles.
Check your power steering fluid. Could also be a power steearing pump going bad
you have a bad power steering pump get a new one
Could be a wheel bearing
need to get your wheel bearings checked
Sounds like wheel bearings.
Going to guess that this is a FWD and noise is from front and no noise while going straight?? Possible outer CV joint or loose front end part
It could be a wheel bearing or the center carrier bearing of the driveshaft.
AnswerThere are a couple of things... If it happens when you are turning and the sound gets louder then it is your CV Joint that needs to be replaced. If the grinding noise is only when you break then it is your break pads and they need to be replaced. If it is just when you drive and is pretty loud then it is your wheel bearings. Don't get bent out of shape if you replace one wheel bearing and the noise is there... it just means you probably should replace all the wheel bearings (better anyways).
howling