For the past few weeks, I have ben hearing a woo woo woo sound from my wheel or suspension. My cars does not drive any different.. But the sound is annoying to me, considering that my interior used to be quiet... any suggestions of what it could be? The sound varies depending on speed and roughness of roads.. But its always hearable. My lower ball joints were replaced a few months back along with alignment. 159,000 are on my car.