Hello! I have not driven my Sonata 2000 V6 for a while until today and was unpleasantly surprised to hear some rumbling coming from the front. I noticed that when the steering wheel is straight or to the left the rumbling persists, if the wheel is to the right it diminishes or even completely disappears at some angle. It is also proportional to the car's speed. Any ideas what might the problem be. Your response is greatly appreciated