David M Cumming , GA August 06, 2018 Appliance: Whirlpool Electric Dryer WED9200SQ0 Whirlpool Dryer Wed9200sq0: Squealing noise from electric clothes dryer. How to replace Idler Pulley. Replaced idler pulley 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes