1999 Grand Prix GT. I am on my 3rd transmission at 170,000 miles. This last one reman shifted badly from day one. I change the Throttle positioner sensor which help tremendously. The only problem I have now is sometimes when I come to a rolling stop at a stop sign and feed gas I get the jerk you are talking about. The trans has a 3 year 100,000 warranty. They can not find anything wrong with it as the jerk is only once in a while and was not happing when I brought the car back. These transmissions s**k. I would run it into the ground as even shelling out $2800.00 for a reman will not guarantee fixing your problem.
