I have 1999 Toyota Avalon Platinum edition. The car runs fine as long as I am below 55 MPG. When I reach to a speed of of 60 to 75 it starts to shake. I see the steering and the passenger seat shaking. When I speed up to 80 MPH I feel it normal. What could be the problem? Is there any problem with the engine or the computer system?
Sep 29, 2010 at 12:04 PM