Stuart O Owings Mills , MD May 10, 2020 Appliance: Whirlpool Electric Dryer WED6600VW0 Whirlpool Dryer Wed6600vw0: Screeching sound. How to replace Dryer Idler Pulley Assembly. Replaced idler pulley. Instructions and video on AppliancePartsPros site were superb. Diagnosed problem using the video, ordered correct part, received it 3 days later, and followed video to replace broken part. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours