What I do is I unplug the motor and I have a test rig I made out of an old washer. I plug the motor to it and check to see if the motor washes and spins attached to the washing machine. If it passes that test I know it is the timer. I suspect that is what it is too from the way you describe it. I use an analog meter to check the cap. The cap should not show open (needle don't move) or closed circuit (needle goes all the way over and stays) It should hop up and drop back down and when leads are reverse do the same. never have seen any harness problems but I did come across a motor with a bad overload:
May the hinges of our friendship
never grow rusty.
About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair and other general BS I love to post. The letter sends me email.
I love fan letters! LOL