Motor starting making a terrible racket after installation 15 months earlier

Be sure to shut off power at circuit breaker and disconnect drain and water supply. Remove the dishwasher from the cabinet, lower it on its side. Remove three electrical connections from motor to various sensors. Remove three plastic wedges that secure the motor gasket to make a tight seal. The motor pops into the body of the dishwasher for removal. The replacement motor goes in just as you took it out. It took two people to set the motor right to ensure the good seal on the gasket for re-installation. Then turn it back upright and secure it in place. Couple suggestions, be sure to have ample towels around for leakage from water and drain lines. Be sure to cover the bottom of the dishwasher during disassembly and reassembly of the wash manifold. I dropped a screw in there and it took me some time to fish it out.
All in all, it went well. Don't pay a plumber for this job. I'm a clod and if I did it, you can.