98 E300TD Trans not shifting...
 

sometimes.
Sometimes it will shift up into (3rd I think) and then stay there. Stop it-shift into park, neutral, and work the gears and then it still doesn't go past 3rd or whatever.
Turn it off and restart-all better. Nothing to see here. Makes me think electrical more than anything. Is there some type of a K40 relay board for the transmission? Or does that K40 board run that too?