What Causes the Abnormal Noise from the Vios Tensioner Pulley Belt?

[AaliyahMarie]

Introduction to the causes of abnormal noise from the Vios tensioner pulley belt: Caused by the smooth wear of the contact surface between the belt and pulley: This usually occurs when the engine speed changes rapidly. Sometimes, an increased load on the accessories driven by the belt can also cause belt noise. Check if the bearings of the accessories driven by the belt are damaged, stuck, loose, or if the accessory power has increased. Replace the belt or use 100-grit sandpaper to polish the contact surface between the pulley and the belt. Failure of the tensioner: The tensioner provides pressure directed towards the belt or chain. The tensioner pulley directly contacts the timing belt, while the guide rail directly contacts the timing chain. As they operate along with the belt or chain, they apply the pressure provided by the tensioner to maintain the appropriate tension. Replace the tensioner.