You sure its not a electrical problem? or maybe try dumping in some trans tune and get it to drive for awhile? Then change the fluid.
did you drop the pan and find exploded parts?
did you drop the pan and find exploded parts?
red you going to do this or what???I know it might seem redundant, but try pulling codes yourself and see what you get.
I know we've discussed it a few times in past threads, but sometimes, just removing and reconnecting the solenoid pack connector is enough to alleviate a LOT of shifting problems.