Louis L Mokena , IL February 20, 2021 Appliance: Whirlpool Gas Dryer WGD6600VW1 Whirlpool Dryer Wgd6600vw1: Dryer wouldn't start. How to replace Dryer Idler Pulley Assembly. After seeing the dryer belt snapped and checking to see if the motor was still working. I ordered a new belt and idler pulley and installed both.......dryer works like it's brand new. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes