Dishwasher has black grease spots on the inside of the door at the bottom and has a foul odor when you open the dishwasher with no dishes in it. It is a Kenmore quietgard about 10 yrs old.

You need to clean it, and you may have a bad set of bearings in the motor.
Manuals: https://dl.dropboxusercontent.com/u/8010163/Whirlpool_Kenmore%20Dishwashers.zip
https://dl.dropboxusercontent.com/u/8010163/Kenmore_Ultrawash_Dishwasher.pdf