Edge chip
Clean your battery terminals and all the grounds you can find onthe engine and trans. These transmissions are very picky and a little corrosion on the grounds and bat terminals causes the t/c to lock and unlock.
I also have the edge chip in my 99 dodge. I was wondering if the battery terminals that u are talking about would cause my truck to stay in the drive gear even stopped at a stop light or something. I have an automatic(i'm sure u assumed that already)with 115000 miles. I thought it was just a torque converter problem so i bought a new one this morning.



