Chosen Solution
I have been having a shifting problem with my trans when in drive with overdrive on, when i’m in drive without overdrive i have 0 problems, when my TH700R4 gos to switch gears it is grinding, vibrating and no longer accelerating. i have no idea why this only happens when in overdrive but not in basic drive.
Could be the converter switch near or on transmission bell. Or even the transmission fluid and screen filter need cleaned. You may have caught this soon enough to make a feasible repair. Thanks for asking, Matt of Martins TV Repair.
