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Thread: Strange warbling whistle?

     
  1. #1
    Banned for good! witchy's Avatar
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    Strange warbling whistle?

    Astra G 2004 1.7 CDTI SXi

    I've noticed a weird whistle noise coming from my engine, it only happens as I accelerate, it's more apparent under gentle acceleration.

    It's sort of mid pitched and warbles at the same time.

    Turbo?

    Nothing?

  2. #2
    Administrator davidh's Avatar
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    Re: Strange warbling whistle?

    Quote Originally Posted by WITCHSMELLER PURSUIVANT View Post
    Astra G 2004 1.7 CDTI SXi

    I've noticed a weird whistle noise coming from my engine, it only happens as I accelerate, it's more apparent under gentle acceleration.

    It's sort of mid pitched and warbles at the same time.

    Turbo?

    Nothing?
    possible turbo noise
    Regards davidh


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  3. #3
    Banned for good! witchy's Avatar
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    Re: Strange warbling whistle?

    Quote Originally Posted by davidh View Post
    possible turbo noise

    Is that a bad thing?

  4. #4
    Administrator davidh's Avatar
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    Re: Strange warbling whistle?

    Quote Originally Posted by WITCHSMELLER PURSUIVANT View Post
    Is that a bad thing?
    could be a leak look for the pipes going to it see if it has a hole or has it come loose
    Regards davidh


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  5. #5
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    Re: Strange warbling whistle?

    air leaking out the turbo!!!!!!

  6. #6
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    Re: Strange warbling whistle?

    There's a duck caught under you bonnet silly.
    If it can't be fixed with duck tape and a hammer then it's electrical



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  7. #7
    VIP Member Captin's Avatar
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    Re: Strange warbling whistle?

    Does it do it with your radio off? If not then it could be interference from the alternator.
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  8. #8
    Banned for good! witchy's Avatar
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    Re: Strange warbling whistle?

    Quote Originally Posted by Captin View Post
    Does it do it with your radio off? If not then it could be interference from the alternator.
    My speakers are inside the car, not under the bonnet

    It happens all the time mate, though I can't say i've noticed it for a few days.

    If my turbo had a hole, would i notice a drop in power?

  9. #9
    DW Senior Member eazi's Avatar
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    Re: Strange warbling whistle?

    Warbling sounds can also be a sign of a worn /nearly dead turbo or one thats lost one of its fan blades.

    I'd go to my trusted local independent and ask them to have a listen.

    I had a Galaxy Tdi that threw its turbo fan into the engine inlet, expensive noise followed
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  10. #10
    Moderator IANB's Avatar
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    Re: Strange warbling whistle?

    Have you checked the 710 disc on the top of the engine m8

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