Do you guys have any idea what would cause the front wheels to judder when turning? It seems worst when the car is not moving or barely moving. When I turn he wheel and the power steering begins to work the front wheels do kind a juddering dance. I have had a mechanic take a look at it but since all of the parts are pretty new, he is not sure what it could be. He replaced the idler arm with no effect. Any ideas would be very welcome...