My 1996 Mark VIII has problems the dealer cannot help with. First the steering wheel bounces so much, it makes your hand numb. Tires are new, aligned. First time they installed new front rotors and rotated back rotors, cost $431. That didn't work so they checked everything and said, they had no idea. The Message Center came up with Oil Temp Error. Back to dealer. They tell me there is no such item in their books so the car must be okay. Took car to two other dealers, same reply. For several months car has sounded like body and frame are crashing together - after a few miles, it calms down. Dealer cannot find anything rubbing and said it would be silly to pay them $45 an hour to put car on rack and bump it up and down. Shifting also is a problem, it shifts whenever it wants to. Was told transmission is fine. Any ideas and answers would be greatly appreciated. I have a beautiful car with spoiler and convention kit, but I need help getting these things fixed.