Well my brother has my '94 T/A and he is having problems with the transmission. He says it will only got into 2nd and 3rd gears. It was working fine one day and crapped the next. He says when shifting from 2nd to 3rd that it shifts very hard. He checked the fluid, all is well with that. What could be the problem? Could he get it scanned and find out? Any help would be greatly appreciated!

Blake