Joseph P Philadelphia , PA November 28, 2016 Appliance: Whirlpool Electric Dryer WED4890XQ0 Whirlpool Dryer Wed4890xq0: After dryer would run for a while loud ticking noise started comming from the back. How to replace Belt Shield Assembly (Protective Cover). Replaced Blower Wheel. Stress cracks at center of blower wheel. 4 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes