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Thread: 2.0t turbocharger not working?

  1. #1
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    Vehicle InfoStats

    Vehicle : Signum


    Engine : 2.0t

    Year : 2005

    Mileage : 117000

    Default 2.0t turbocharger not working?

    hi, today i noticed that my turbo is not kicking on. and i don't hear any turbo's whistle on 2.0t signum can it be that vnt is faulty as whistle appearead just recently? Don't know how on this, but i had 1.9 tdi passat and when whistle become very noticeable (all the time i though that police or ambulance is coming behind me ) i dissasembled turbo and cleaned VNT afer that car was running fine again. Today i tried disconnect plug from vaccum which is on turbo and didn't see any diferance. 55reg facelift 117000 miles

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    Moderator & Events Assistant paulhb's Avatar
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    Vehicle : M5

    Trim : Nothing needs adding

    Engine : 5.0 V10

    Year : 07

    Mileage : 37000

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    Take the vacuum pipe that connects to the turbo and suck on it and see if the engine note changes if it does change the vacuum valve if not try changing the vacuum pipe to the dump valve.

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    Regular Member beat275's Avatar
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    Vehicle InfoStats

    Vehicle : Hatch

    Trim : SRI

    Engine : 2.0T

    Year : 2003

    Mileage : 90000

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    it could be a boost leak or the diaphrame in the turbo has split

  4. #4
    Regular Member nikroc's Avatar
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    Vehicle : 2t

    Trim : standard

    Engine : z20net

    Year : 08

    Mileage : 32000

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    or a disconnected pipe...maybe split...

  5. #5
    VIP-Member Caveman_nige's Avatar
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    Vehicle : Signum & Insignia

    Trim : Elite

    Engine : POS derv

    Year : 2014

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    as above and you do not have a VNT turbo, thats for the 1.9cdti..

    you have a Garrett GT2052 turbo, very basic. Check for boost leaks first and then check your boost solenoids.. after that you could be looking at some kind of wastegate failure

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    Vehicle : Signum


    Engine : 2.0t

    Year : 2005

    Mileage : 117000

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    connected today my laptop and boost pressure was almost all the time 101kpa, just on 3000rev maybe 110kpa. it needs to blow to vacuum pipe to make any wastegate moves, but I can't blow such strong to make it moving. what if I connect 12v wires to vacuum?

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