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2006 Focus 1.8TDI hissing noise

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  • 30-07-2016 2:28pm
    #1
    circadian
    Registered Users Posts: 6,918 ✭✭✭


    Hi guys,

    My bro has just arrived after a 4 hour drive and was saying that his Focus has started making a hissing noise. We went for a quick spin and when the car hits 30mph/turbo kicks in you can hear it. It's not a harsh hissing but more like air passing through something, if that makes sense.

    All the auto factors/mechanics in the area are closed today for the long weekend so was hoping one of you folks would have an idea.

    Thanks,

    C


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    #2
    porsche boy
    Registered Users Posts: 1,560 ✭✭✭porsche boy


    Sounds like a split in one of the turbo pipes or hole in the intercooler. Have him pop the bonnet and rev the engine to see if it's anything you can do a temporary bodge on


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    #3
    tabby aspreme
    Registered Users Posts: 3,859 ✭✭✭tabby aspreme


    It's probably the flexible pipe bringing air from the the turbo to the intercooler, it's in the left hand side of the engine bay when facing the car ,near the bulkhead . If I can remember correctly about €40 from the main dealer


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    #4
    shietpilot
    Closed Accounts Posts: 2,881 ✭✭✭shietpilot


    tabby aspreme wrote: »
    It's probably the flexible pipe bringing air from the the turbo to the intercooler, it's in the left hand side of the engine bay when facing the car ,near the bulkhead . If I can remember correctly about €40 from the main dealer

    Usually this hose gets a tiny slit and starts leaking boost:

    post-40970-0-39899800-1361033398.jpg


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    #5
    circadian
    Registered Users Posts: 6,918 ✭✭✭circadian


    Thanks lads, couldn't find a leak but it definitely sounds like it's coming from a small hole in the piping. He's driving back home today (about 200 miles) so hopefully it'll hold out until he can get to a mechanic.

    Appreciate the info.


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    #6
    shietpilot
    Closed Accounts Posts: 2,881 ✭✭✭shietpilot


    circadian wrote: »
    Thanks lads, couldn't find a leak but it definitely sounds like it's coming from a small hole in the piping. He's driving back home today (about 200 miles) so hopefully it'll hold out until he can get to a mechanic.

    Appreciate the info.

    He'll have no problem driving it back for sure! Even if the pipe falls off, he will hear a big woosh and the car will be accelerate much much slower but he will be able to get home no problem!


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    #7
    iamtony
    Registered Users Posts: 3,801 ✭✭✭iamtony


    And clouds of black smoke will follow him if that happens:-)


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    #8
    shietpilot
    Closed Accounts Posts: 2,881 ✭✭✭shietpilot


    iamtony wrote: »
    And clouds of black smoke will follow him if that happens:-)

    A 1.8 TDCI will go into limp mode after about 30 seconds of clouds of black smoke and then inject less fuel making hardly any smoke :P


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