Unveiling the Secrets Idler Pulley Noise Diagnosis and Repair

Sounds like an idler pulley to me; my Civic made a very similar sound at idle before replacing it. If the bearings in your pulleys go bad, it ... this is just to show that noise in the first video and ... Went to advance auto to get 3 pulleys on the diagram it was the #1 upper idler ... The Acura Technicians and the regional manager believe the noise comes from an Idler pulley tensioner and the belt. If the belt is on the engine and the engine is operating there my be a rattling or metal on metal screeching sound. take off the serp belt and spin the tensioner pulley. if it's spins rough or noisy, replace it. I replaced mine with Dayco 89055 pulley rather ... If pulleys are squealing, change them asap. My idle pulley was squealing for about 1 month off and on. The day I bought a new one is the day ... 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 it's squealing when it's cold it's probably not the idler but drag from the PS pulley. Takes a while for the fluid to warm up and flow. I'm trying to track down a noise from what I think is coming from an islet pulley or the tensioner pully on the serpentine belt. It's kind of a cross between a ... After tens of thousands of miles of use, the shaft bearings inside the idler pulley become worn causing a vibration that produces a loud noise. Similar noises ...