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nardeezy

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  • Name
    Nick
  • Location
    SF Bay Area
  • Drives
    2015 GMC Sierra Denali

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  1. nardeezy
    Will do. Is a premature failure of the idler pulley a known defect in the 5.3L engine? I’ve had a 2001 Chevy Tahoe (5.3L) with 250k plus miles and it never had an issue with the engine or pulleys and is still on the same a/c unit. All I replaced was the water pump, thermostat, serpentine belt and belt tensioner. That’s it.
  2. nardeezy
    Interesting. Under warranty, my a/c unit failed a couple of years ago and was replaced. I don’t recall hearing this noise before the first a/c unit failed.
  3. nardeezy
    I’ve never done this before. Pull the serpentine belt while starting the engine? Please clarify.
  4. nardeezy
    I think I have the same noise too? Take a listen. Turn up volume. I have a 2015 Sierra Denali approaching 56k miles. Performance is normal. https://share.icloud.com/photos/0K7vn2ly2lV9sWlKoEDhSwbYA#Menlo_Park_&_Home
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