Tim O Vine Grove , KY May 27, 2020 Appliance: Whirlpool Electric Dryer WED9300VU0 Whirlpool Dryer Wed9300vu0: Idler pulley was making a screeching noise. How to replace Whirlpool Drive Belt. I put a new Idler pulley assembly on it and will I had it all apart I went ahead and I put new drum rollers and a new belt. Works great no more screeching noise. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes