[thundergod1320]

I've got a similar but different problem with my 91. Mine tries to lock, bangs and does not engage... Now, it's started "neutralizing" while driving. From all the testing and research I've done, it sounds like the "lock-up" part of the torque converter is failing. Try what everyone said already. If none of this stuff works, it's likely converter time. If there is an unusual amount of metal on the trans pan magnet, this is a pretty good indication that something is coming apart. Mine however didn't have any when I checked it but I'll bet it does now!
Keep us posted!