whining noise

Discussion in 'GM Powertrain' started by cleblanc1, Jun 13, 2010.

  1. cleblanc1

    cleblanc1 New Member

    at 40 /45 mph something starts whining from under truck [2001sanoma crew cab] if i let up on the gas it goes away any one know was up!
  2. rustyk2

    rustyk2 Rockstar 4 Years 500 Posts

    We might need some more info, noise from the front or rear, engine size, transmission, etc. without more info,my guess would be the rear differential gears. they tend to wear and make noise.

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