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Thread: Civic VTI '06 - strange sound at 120KPH

  1. #1
    PakWheeler Follow
    hnaqi's Avatar
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    Default Civic VTI '06 - strange sound at 120KPH

    I own a civic VTI 2006 model. CNG kit was installed at 15000 kms. Last week, I had the 20,000 kms checkup from Honda dealership. Plugs, filters, oil, etc were replaced along with first tunning and routine checkup. I went to Islamabad by motorway and noticed a strange whistle like sound as soon as the speed crosses 100/110 KPH. It doesn't come when I slowed to 100 KPH.
    I need expert advice on this.
    Thanks in advance.
    We usually see only the things we are looking for.......... so much so that we sometimes see them where they are not.

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    Senior PakWheeler Follow
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    Default

    probably some air passage creates the whistle sound when u cross a certain speed. try to trace the area where u can hear the sound from
    Life is short and very unpredictable just like a Quarter mile .....

  3. #3
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    Could be air passage but I guess it comes from the engine....
    We usually see only the things we are looking for.......... so much so that we sometimes see them where they are not.

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    Default

    is it speed or RPM related issue, if it pertains to high RPMs then u need to check ur CNG kit, and that is not so difficult either.

    i ve come across some CNG reg. with whistling sound on high RPM.

  5. #5
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    Default

    Its speed not the RPM
    We usually see only the things we are looking for.......... so much so that we sometimes see them where they are not.

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