Idler Pulley : On a belt or chain system, an idler pulley allows the belt or chain to rotate on a pulley that serves the purpose to direct the belt or chain to another position. Idler pulleys are used on some timing belts, serpentine belts, stretch belts and timing chain systems. The idler pulley is a bearing and a pulley setup.
Idler pulleys can fail locking up the chain or belt or making funny noises from the chain or belt. The idler pulley can break the chain or belt if it indeed locks up. When the chain or timing belt breaks, internal engine damage could occur.
All types of idler pulleys can be replaced with ease at Guy’s Automotive. Schedule your automobile in today and get your chain or belt noises diagnosed and solved.