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Faint whistle at and beyond 4500 rpm.

Discussion in 'General Tech and Maintenance' started by jamesA, Jan 6, 2006.

  1. jamesA

    jamesA Well known pissed off telephone guy VIP

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    00 Si, stock b16a2.

    tonight i went to get some food, on the way back I was just fuckin around and revved to 5k and shifted.

    i started noticing this really, really faint whistling sound that started around 4500 rpm and continued until 5500 rpm. I couldn't hear it after vtec engaged, but i'm betting it keeps on going.

    it's about 28 degrees outside, and i just had my belts (serpentine and timing) changed just 3000 miles ago.

    what could it be?
     
  2. HatchSpeeD

    HatchSpeeD ...Hi...

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    b16's have serpentine belts, hmm new to me. I dunno, could be a number of things...valve lash maybe?
     
  3. jamesA

    jamesA Well known pissed off telephone guy VIP

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    The PS, AC, alternator belt. the dealer called it a serpentine belt... whatever it is.

    anyway, i thought valves ticked when they were getting worn? [​IMG]
     
  4. hcivic.com

    hcivic.com Senior Member

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    a whistle? well could be a belt maybee? or a door seal?
     
  5. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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    door seal does sound like a good theory.

    i had a T3-60 sound in my engine bay for a while. Turns out it was a blown exhaust gasket.
     
  6. jamesA

    jamesA Well known pissed off telephone guy VIP

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    I dunno... I'll check it. It's strange that it'd only start to whistle at or above 4500.
     
  7. civic92jak

    civic92jak Senior Member

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    I'd check the exhaust manifold if you have the stock one. But if you don't, i'd check it anyway. My bro's accord manifold cracked and made that exact sound.
     
  8. jamesA

    jamesA Well known pissed off telephone guy VIP

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    oh cool. it'll give me an excuse to put my header on asap.
     
  9. StarBellieAngel

    StarBellieAngel Senior Member

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    mine does that but it's only at certain levels of holding down the throttle. my guess on that was somewhere with the throttle body... or something. dunno, bro.
     
  10. pissedoffsol

    pissedoffsol RETIRED

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    WOOOO WOOOOOOOOOOOOOOOO!!!!!!

    You got a whistle tip y0!!!!!!!!!!!!!!!!!!!!!!!
    :bubbrub:

    lol


    check for a tiny leak around your air filter cone. it will whistle if air is getting sucked in on the rubber at the end of the filter.
     
  11. jamesA

    jamesA Well known pissed off telephone guy VIP

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    I'll do that, thanks. :)
     
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