Have you scanned for codes? I know the trans only has 50,000 miles on it but the seals inside the trans get old and bypass fluid pressure which hold s the trans in gear, with that being said, the shift solenoids could be getting weak causing all kinds of weird problems. Usually the computer will pick up on this and through a code, but not always. Try removing the pan and check the connection and resistance of each solenoid to see if there are large discrepancies in readouts.
The resistance at room temperature should be 20-30 ohms (Mitchell1)
Thanks for the donation, let me know what happens.
Sunday, October 12th, 2014 AT 9:29 AM