Had this same problem a couple years ago, was told by several people and shops "time for a torque converter and rebuild". well being cheap I did research and found a trans shop that said something VERY VERY similar to this...
Originally Posted by
thecardoc
This can some times be resolved by a complete fluid change and an additive like Dr. tranny Shutter stop.
I (the trans shop) did exactly this, and solved all my issues. That Dr. tranny stuff works. Never thought a tranny shop would NOT sell a rebuild. Total service charge under $175.00, Total rebuild with converter $2,500.00. Yeah, Ill try the cheap way first!