Today I spent the afternoon taking apart and reassembling my Kenmore-branded Whirlpool-made top-loading clothes washer (Series 80, model number 110.27822790). What I found was so disgusting it's against the Geneva Convention to post pictures of it. Well, actually, I didn't take pictures because I always forget to take pictures once I get my head into a project. But it was disgusting in there. Trust me on this. And because it was disgusting in there that means my clothes are disgusting, including all the ones I can't bleach. Grr.
Anyway, I strongly recommend to anyone that detects the slightest whiff of mold in their washing machine to at least take the cabinet off and look around. There are loads of instructional videos on the web that walk you through everything. It's not that hard to take the basket out on models like mine if you want to do the whole thing yourself, though it does require a special wrench. Otherwise, call a pro. Or if you're rich, buy a new washer.