washer doesn't spin clothes dry

Maytag washer doesn’t spin clothes dry enough to go into dryer, doesn’t want to go into high speed final spin, BUT sometimes it will, no water left in drum, I have checked filter, pump, the drain hose , changed the belt, checked the pressure hose, had Maytag dealer ck it, all he said he didn’t know and charged me $65 so I hope I can get some info here Thanks in advance.