I have a terrible smell in my washing machine, it smells like a dead animal or trash. Checked in and around it. Wash machine is 20 years old.:mad:

Fill washer to full capacity with water, once the washer is full of water and just about ready to start wash cycle, shut washer off. Then dump in a gallon of bleach, let it set over night, and then start washer again and let it go through its cycle. Once cycle is done, run it through a couple more cycles on max load. Do this until you no longer smell bleach in the washer. Then, enjoy your fresh smelling washer. Lee.

I agree with MGD but with one slight addition. Fill it, add the bleach, allow it to start agitation for a minute and then shut it down for the night. This gets the bleach water through the pump and hoses too. This is likely a build up of lint and soap scum over the years.

Great catch Bob.