How to Troubleshoot & Replace Whirlpool AP6024203 / WPY54414 Dryer Belt Tension Pulley

We replaced the dryer belt, both drum support rollers, both drum glides, both dryer glide felt pads and the belt tension pulley. While these replacement parts did not entirely eliminate the banging noise, they did however reduce the sound to an acceptable level. 

Loud clanking, screeching, and squealing that even closing the laundry room door couldn't hide. I considered changing the teflon or nylon guides also, but they were still in great shape. So I just went for the other parts related to the movement of the drum, including the rear rollers, the idler pulley and the drive belt. For me, the main problem was definitely the idler pulley (Belt tension pulley). Now it all works like new. Make sure to take the time to get the correct parts for your specific model number. I had no issues. On installation, the snap-ring pliers I had on hand were too large. I had to use a small scribe with a sharp point and a small screwdriver to get the snap-rings off. It was helpful to note the routing of the old belt before removal. 

Knew that from rollers could be the problem. Decided that for a few dollars more, it would be best to change rollers, drum drive belt and idler pulley at the same time. GLAD I Did! The idler pulley was a mess and the belt was cracking! What a difference after repair! Went from loud rumbling noise to a whisper “whoosh” sound. Also found some junk in the blower fan and removed it. Cleaned up all the lint, too. Like a new MACHINE! My wife tells everyone I’m a genius! Can’t get better than that! Recommend that novices get the service manual for their specific model to have a CLEAR step by step process to follow. Also, get snap ring pliers set at Menards for $4.9. 

The drum belt tension er had worn out & ruined the drum drive belt. I replaced these pieces and it works fine. The biggest challenge is knowing the proper order for removing the top and the front panels of the dryer to gain access to the drum & tension er assembly. It's also a bit tricky installing the belt, you will need to hold the idler assembly fully extended while you install the belt. 

After doing some research on Internet and taking apart my dryer, I found the problem. Thanks to AppliancePartsPros.com and the easy model search, I found the parts I needed. I can't say enough good things about this company, they saved me hundreds of dollars ! The fix was easy and fast. 

Your how-to video was great. I also removed the top of the dryer, as well as the front as directed, so I could see and reach easier. Cotter rings had very small holes so my new pliers were of no help; used needle nose that I had. That issue took a lot of time. I'm retired so I had the time. I figure I saved $200. THANKS for the great video and easy to buy website. 

REPLACED THE BELT AND PULLEY. 

Watched video on your site. Learned the highly suspected parts to replace for noises. Ordered 2X cylinder rollers and one belt tension pulley. The video clearly showed how easy it was to disassemble and replace these parts. During the job, I discovered one of the old cylinder rollers was indeed making the squealing noise. It was an easy job if you pay attention to what you've disassembled. Thank you for making this resource available. I saved my daughter some cash. 

I replaced rear rollers,front glides ,idler pulley and belt while I had it apart. The cabinet came apart slightly different than the video,but still it was very helpful and it was a breeze. 

Replaced new solenoids and thermostat replaced along with ignitor, bulb, belt,and pulley as preventative maintenance with thorough cleaning.