I am sorry if something like this has been posted before. This problem just started a couple of weeks ago. My car runs great, and shifts smooth until I drive for about 45 minutes to an hour on the highway, about 65 mph. Then I will get into town when the car will be shifting alot and it seems to slip a lot, 1st to 2nd, 2nd to 3rd. It makes a big jerk. Is this slipping? If it is, should I do a tranny flush? or do you recommend something else? The Mystique has about 90,000 miles on it now, and I don't think the tranny fluid has ever been flushed or changed, at least not since I've had it (40,000 miles.)

Again I am sorry if this has been posted before, but I didn't know how to search for this problem.

Any help would be great.

Thanks,

Nick

98 Black Mystique LS Duratec V6 2.5L ATX K&N air filter, cleaned EGR, new Autolite double platinum plugs, magnacore wires, rebuit Sonnax valved VB, TSS, TPS. Mobil 1 5W-30