Our 97 we just bought has 140K on it. It has a vibration when coming to a stop, and while sitting at a stop. It seems to go away after a few seconds. I bought an extended 2 year, 24K mile extended warr. covering everythihg, except brakes, belts and the radio, etc. I want to take it to Toyota to get it checked out. Will they know what it is? Is it a common problem, or will they tell me it's normal? What else should I look for before I take it in? Thanks!