I have a 1995 toyota tacoma 4 cyc. At first it had to warm up to shift out of first into 2 3 drive. Today I stopped at a red let and it shutterd like the engine was spuddering but it was the tranny and it would not shift out and finally, nothing no gears not even reverse. Stuck onside of the road I check fluid(hot) was bit over full. Still would not shift. Had no gears. I shut it off and calked for backup then crunk it up for a/c and wow it shift so I hauled butt then it started messin up again so each time I shut it off and restarted it it shifted fine till it messed up over and over restarting and goin till I hit a red light r hsd to stop. Wat u think is my problem, pcm, ecu, tcm are wat?