Wash a dead skunk in the Normal/Cottons cycle and that should do it.
Vinegar is usually pretty good at getting rid of odors. You could try running a cycle empty with a gallon of vinegar. (I'm just guessing)
Throw a tablespoon full of sulfur in the the machine and run hot water through it.
tossing in a box of baking soda in and
running it through a full wash cycle
without clothing might help.
A squirt of Dawn dish detergent will do the trick.
Not too much though, or you'll end up with suds all over your floor. :-D
I'm not 100% sure since I've never had this problem, but I would try the following three things, in order, on the largest warm cycle on your machine:
Dawn, to remove grease. As mentioned, don't use too much or you'll have suds all over.
Vinegar, to remove whatever Dawn doesn't. Maybe pour a gallan jug in there on the warm soak cycle.
If you still have an odor after that then run another warm soak cycle again and pour a box of baking soda in there to absorb the smells.
If you don't mind, let us know what you tried and what worked (and what didn't). I'l probably find myself in the same situation at some point in my life!
Dump in a box of baking soda and wash a load with towels and rags
Fill up your machine and squirt just a little bit of Dawn dishwashing liquid in it...it should desolve the remaining grease and smell....mind you, just a little....and use hot water.
Eye of newt and hair from the leg of a frog.
:oD
I ended up running an empty cycle with Dawn dish soap. This seems to have worked. Dawn dishsoap emits some kind of funk when it's in the washing machine, but I washed a load of laundry after using the Dawn and everything came out just like normal!