Gene H San Ramon , CA January 13, 2019 Appliance: KitchenAid Undercounter Dishwasher KUDS30IXWH4 Kitchenaid Dishwasher Kuds30ixwh4: Loud motor, poor washing in top rack. How to replace Pump And Motor Assembly. Replaced pump and motor assembly. Although it's likely only the motor needed to be replaced, for the extra $20 it made sense to replace the pump, grinder, etc. at the same time. The video was great and explained the repair process clearly. If you're reasonably comfortable with this kind of thing, the repair is easy. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours