1. Welcome to PlowSite. Notice a fresh look and new features? It’s now easier to share photos and videos, find popular topics fast, and enjoy expanded user profiles. If you have any questions, click HELP at the top or bottom of any page, or send an email to help@plowsite.com. We welcome your feedback.

    Dismiss Notice

Whining noise

Discussion in 'Chevy Trucks' started by dlcs, Mar 29, 2006.

  1. dlcs

    dlcs 2000 Club Member
    Messages: 2,142

    Will a serpentine belt make a whining noise while driving at say 30-50 mph? My 99 Silverado with a 6.0 does this sometimes at about 35mph. I've been told that bad serpentine belts only whine at idle when there is no load on the engine. I hate to buy a new belt and not be the problem, actually the belt looks good.
  2. dirt digger

    dirt digger Senior Member
    Messages: 619

    seeming as this is happening in the winter i doubt your AC is on...but my serpentine belt whined at highway speeds when my AC was on, changed the belt, solved the problem