There are a few possibilites;
The tire could be bad, meaning it is cupped, has a bump or bulge on its surface or has uneven wear and makes the noise. You might experience some vibration with this as well.
The wheel bearing could be failing. This is even more likely because of the fact that the car makes more noise when you make turns.
Check the brake to make sure it does not need replacement as the brake pad sensor could be touchng the rotor indicating that the pad needs to be replaced.
This could come as a result of a parking brake canble that is not fully releasing or was left on for some period of time.
Let me know if you need any more help with this issue.
Thursday, October 20th, 2011 AT 9:21 AM