[The_Bishop]

Took a quick look at the file. There's a little bit a weirdness as far as the force motor current tables go. Somebody boosted all the midrange numbers. As far I ever learned you don't want to screw with this table; especially if you have a shift kit in the car as the kit will increase the pressure without fudging the FMC tables.

Your shift times are zero'd out for 1-2 and 2-3, and set for .200 for 3-4, which I wouldn't do. The trans needs *some* time to complete the shifts, especially if it's stock. But with all this tinkering, the TCC maximum/minimum hasn't been changed, which it should be if you're running an aftermarket converter.

The TCC Apply/release tables have been modified to disable TCC lockup in 3rd gear. Not sure I understand why that was done. Also, all the torque management has been disabled in the transmission section which is questionable if the trans is stock.

I don't see anything standing out in the tune causing the issue. You might have a mechanical issue, such as loose valve body bolts, or a blown out valve body gasket. Could be that someone tried to put a shift kit in the trans and screwed something up, too.