I have a 96 Intrepid that Ive had the "bucking" problem with, Ive had several things done to try to solve this problem such as having changed the trans fluid and filter(with the corrrect kind too)replaced spark plugs,wires,fuel filter, and guess what it turned out to be? Heads up! For those who dont know, this car has transmission fluid AND gear oil, The gear oil was very low and was causing this "bucking" motion everytime I took off on the car, It has been filled and it no longer bucks. For the guy with all the problems, my access tubes one of em anyway leaks and i dont worry about it, let it leak!