I would bet it's a suspension or drivetrain noise. Wondering if anyone has encountered this problem. It will do it when I am still (engine idling) then I pull out (accelerate) either left or right no more than a 45 degree angle in eithe left or right direction and a mild thunk (milder than a thunk if it makes any sense) and it wont do it every time just every now and then. Any thoughts?