I have a 1990 Chrysler New Yorker, 3.3litre, 3 spd. automatic transmission with 63,000 miles. Recently the transmission started acting up. Sometimes when I went over a bump it would shift itself from drive into a lower gear and would not go back into drive until I stopped, shut off the ignition and then started the car again. A couple of times I didn't notice it had shifted itself to low gear until I got home and could smell a hot transmission? I had a new tranny kit installed a month ago and my fluid levels are all good. Is there some electrical device that regulates the tranny that could be shorting out. Any advice is greatly appreciated.
Thanks, M. Dodd