Dishwasher was progressively getting worse at cleaning and draining. Kept putting it off.
Today was the last straw. Pulled it out, turned it over. Found a YouTube video that seemed to fit my problem and dishwasher model. Followed it through removing the drain line. Nope. Pulled off main elbow. Nope. Removed the face plate of the engine. Bingo! Crud and plastic wrapped around the shaft. Back together, check for leaks, back under the counter. Good to go.
Took me a while, but tripled my confidence for future dishwasher repairs. Wouldn't blink to change a motor in the future... and I ain't particularly handy.