Richard A Chester , VT December 26, 2025 Appliance: Whirlpool Dishwasher WDF750SAYB3 Whirlpool Dishwasher Wdf750sayb3: Dishwasher was making a grinding noise while washing. How to replace Pump And Motor Assembly. I installed a new sump assembly. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours