Eliminate Idler Pulley Noise A Comprehensive Guide

need to quiet this customer's loud fan belt tensioner pulley. It's a simple trick to grease idler pulleys. Don't buy a new idler pulley for ... Tensioners prevent slackness in the belt, while idler pulleys guide the drive belt and route it around ancillary features like the water pump and alternators. Chirping and squealing can be from a lose belt also. If the belt is even slightly loose - it'll squeak / chirp everytime it slips on the pulley. Anybody notice their topmost idler pulley making a rather disgusting sound? Mine sounds like it has sand in the bearings. I can hear it with the hood closed. If you believe the noise is coming from the pulley bearing; while its making noise spray some WD40 into the bearing. If the noise goes away then you have found ... If the pulley is already making noise, then sooner or later you will need to replace it. Replacing this and/or the "fan pull bracket" (tensioner) ... 389 Likes, TikTok video from JoelBrauwn (@jbrauwn): “Replaced the idler. 47.3K1w ago. Replaced the idler #pulley and noticed ... How To Locate A Noisy Idler Pulley. South Main Auto LLC•1.1M views · 6 ... Pulley Problems: Diagnose Noise Under Your Truck / Car's Hood! The noise is a "bearing-going-out" type noise, increases in loudness/pitch with acceleration, decreases to near-non-existent (but can still hear the slight ... A chattering noise typically indicates a loose or seized pulley, while a squealing noise is a sign of a faulty bearing. ... idler may make a ...