1991 Plymouth Voyager Van 3.0 mileage: 70,000. AT 60 mph or above 3 speed auto transmission seems to shift in and out of gear. Tachometer will go up and down when this happens. Garage put in rebuilt torque converter and it did not fix it. Then they put in a valve switch and then they rebuilt transmission. All this and it still is not fixed. Then they put on an engine modulator and that did not fix it either.
Oct 28, 2010 at 6:10 PM