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The idler pulley is the most common cause of dryer squealing. It maintains tension on the drum belt and spins thousands of times per cycle. When the bearing wears out or the wheel cracks, it produces a loud, persistent squeal that gets worse as the dryer heats up. Replacing the idler pulley is a straightforward DIY repair.
Symptoms: High-pitched squealing or squeaking that starts immediately when the drum begins turning, often worsens with heat.
A worn drum belt can cause thumping, slapping, or squealing as it slips, frays, or develops flat spots. A belt that's about to break will often make a rhythmic thumping sound as the worn section passes over the pulleys. Replace the belt before it breaks completely and leaves you with a drum that won't turn.
Symptoms: Rhythmic thumping or slapping noise, belt visible through cabinet with fraying or cracks, drum turns slowly or intermittently.
Drum glides (also called drum slides or drum pads) are plastic or felt pads that support the front of the drum as it rotates. When they wear through, the metal drum rim contacts the front bulkhead directly, producing a grinding or scraping noise. This is especially common in dryers over 10 years old.
Symptoms: Grinding or scraping sound, noise changes when you push up on the drum door, visible wear marks on the front drum rim.
The rear drum bearing or drum support roller supports the back of the drum. When it wears out, the drum sags and produces a grinding, rumbling, or squealing noise from the back of the dryer. This repair is more involved than a belt or pulley replacement but is still a DIY-friendly job.
Symptoms: Rumbling or grinding from the rear of the dryer, noise is loudest when the drum is loaded with clothes, drum wobbles when spun by hand.
Coins, buttons, bra underwires, or small items can get trapped between the drum and the cabinet, or sucked into the blower wheel. This produces a rattling, clanking, or thumping noise that may be intermittent. Check the drum interior and lint trap area before replacing any parts.
Symptoms: Intermittent rattling or clanking, noise changes when drum position changes, visible item caught between drum and door seal.
Short-term, yes — but you should repair it promptly. A squealing idler pulley or worn belt can fail completely without warning, leaving you with a drum that won't turn. A seized pulley can also cause the belt to burn through quickly. The longer you wait, the more parts may need replacing.
Idler pulley noise is typically a high-pitched squeal that starts immediately when the drum turns and often worsens with heat. Drum bearing noise is usually a lower rumbling or grinding sound that comes from the back of the dryer and is loudest when the drum is loaded. Open the cabinet and spin the drum by hand to isolate the source.
Yes — strongly recommended. The belt and idler pulley wear together. If one has failed, the other is close behind. Replacing both at the same time saves you from opening the dryer again in a few months and is minimal extra cost. See our idler pulley and drum belt listings.
Most dryer noise repairs cost $15–$60 in parts. An idler pulley is typically $15–$30. A drum belt runs $10–$25. Drum glides are usually $10–$20 for a set. DIY repair saves $150–$250 in service call fees compared to a technician visit.
Yes — XPart Supply ships OEM and aftermarket dryer parts Canada-wide with fast, reliable shipping from our Canadian warehouse. We've been serving Canadian appliance repair customers since 1996. Contact us if you need help finding the right part for your model.
