trackspeeder
Stone crusher.
TOT code will automatically default the transmission. TC lock up code and TOT code could be a bad solenoid pack.
According to the good tranny builders the radiator cooler, 5/16 lines and tranny fittings are too restrictive.Flush the rad cooler. You should never bypass this cooler.
This cooler does most of the work during slow speed and reverse operations.
Change the tank cooler fittings to 3/8" line. Then instal the aux cooler.
Ford eliminated the tank cooler in 99. Late 00 they returned that cooler after replacing many transmissions under warranty.
Even adapting to 3/8fittings youre still trying to shove fluid through a 5/16hole and a cooler with internal passages that are too small.