I think the noises are more belt related then anything else. If you drive in dusty environment, get the belts wet on water crossings, engine washings etc- eventually even new belts and pulleys will squeak from dust & water intrusion. Try removing the belt, spraying it down with water and drying it with a clean cloth by pulling the belt through your hand & cloth- clean all of the pulley surfaces with a degreaser (isopropyl alcohol) reinstall belt. Or just replace the belt.
I have the superceded tensioner as of March 2018 ( I don't recall the mfg origin) and for 2 years no noises- I dont think its the problem. After last summer Colorado trip I developed a subtle belt squeak on cold starts that lasts only for a few min until the belt warms up. It's more annoying than a mechanical concern. All the spinning components except A/C compressor and vane pump are new OEM components including belts in past 3yrs. I pulled accessory drive belt (serpentine) ran the engine- thankfully no timing belt noise, then spun pulleys and didn't notice any bearing noise, grinding, looseness, or excessive spinning. I cleaned all the pulley surfaces, then took a microfiber and cleaned the accessory drive belt- no chemicals just pulling the belt through the cloth to remove any dust buildup. Reinstalled and no noise for the first couple of days then a faint belt noise returned. Its a subtle belt squeal that diminishes shortly after start up- usually by the time the fan clutch disengages. I'm not too concerned but the next step would be to try a new OEM belt.
I have the superceded tensioner as of March 2018 ( I don't recall the mfg origin) and for 2 years no noises- I dont think its the problem. After last summer Colorado trip I developed a subtle belt squeak on cold starts that lasts only for a few min until the belt warms up. It's more annoying than a mechanical concern. All the spinning components except A/C compressor and vane pump are new OEM components including belts in past 3yrs. I pulled accessory drive belt (serpentine) ran the engine- thankfully no timing belt noise, then spun pulleys and didn't notice any bearing noise, grinding, looseness, or excessive spinning. I cleaned all the pulley surfaces, then took a microfiber and cleaned the accessory drive belt- no chemicals just pulling the belt through the cloth to remove any dust buildup. Reinstalled and no noise for the first couple of days then a faint belt noise returned. Its a subtle belt squeal that diminishes shortly after start up- usually by the time the fan clutch disengages. I'm not too concerned but the next step would be to try a new OEM belt.
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