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Weird Hissing sound coming from engine

Discussion in 'General Automotive' started by awoit, May 18, 2009.

  1. May 18, 2009 at 1:17 PM
    #1
    awoit

    #1
    awoit [OP] Well-Known Member

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    Alright well i have a 455 Olds in my jetboat and whenever i get it up near its highest rpms after punching it a little bit theres a little hissing sound that is coming somewhere from the engine and it only does it for a second and then goes away once i let it off. I was thinking mayb this could be the alternater belt? but its not loose or anything so i need some feedback yo :cool:
     
    awoit, May 18, 2009
    #1
  2. May 18, 2009 at 11:13 PM
    #2
    awoit

    #2
    awoit [OP] Well-Known Member

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    bumpz0r
     
    awoit, May 18, 2009
    #2
  3. May 19, 2009 at 6:17 AM
    #3
    chris4x4

    #3
    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Vaccume leak?
     
    chris4x4, May 19, 2009
    #3
  4. May 19, 2009 at 2:34 PM
    #4
    OU812

    #4
    OU812 ban the term murdered out

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    What carb?? Q-Jet, Holley??
    Q-Jet -- secondaries taking time to close down can cause the hissing sound.
     
    OU812, May 19, 2009
    #4
  5. May 19, 2009 at 7:14 PM
    #5
    awoit

    #5
    awoit [OP] Well-Known Member

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    its a holley
     
    awoit, May 19, 2009
    #5

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