Has anyone had any success at getting the sour smell out of front load washers?

I have an LG front load washer that smells, and makes my laundry smell also. I always leave the door and soap tray open. (which I don't like and shouldn't have to do). I have tried bleach and vinegar--not together. Didn't make any difference. I am ready to junk it, but it was expensive.
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