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Sucking noise from engine during light acceleration at freeway speeds

Discussion in 'Chevy Suburban Forum (GMC Yukon XL)' started by hac20853, May 25, 2013.

  1. hac20853

    hac20853 New Member

    I have a 2011 suburban that has a sucking noise that comes from the engine during light acceleration at freeway speeds. Is sounds a little like the noise you would here if the air filter were removed from older car with a carburetor. The dealer technicians herd the noise and performed a smoke test, not sure what that is, and then clipped an old tech bulletin to the service record (Document ID 1580607 – whistle noise from throttle body area on light throttle acceleration…..) and said it is a normal noise characteristic. Hard to believe that technical bulletin from 2005 would be applicable to a 2011 model. Any thoughts?
     
  2. tbplus10

    tbplus10 Epic Member Staff Member 5+ Years 5000 Posts Platinum Contributor

    Just like the Dr I'd get a second opinion, sucking noise isnt normal and could be an indication of a larger issue. If your sucking air into the intake past the airfilter why bother to have an airfilter.
     

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