Scott S Omaha , NE August 28, 2016 Dryer made a loud "thumping" sound Following the instructional video I replaced the idler pulley,belt and roller assembly in about 30 min total. I have never repaired an appliance before but I will not hesitate to use online parts and try again. It was almost enjoyable ! Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes