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Thread: y30dt juddering/smoking/hesitating

  1. #11
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    Lisbon
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    Vehicle : Vectra

    Trim : Caravan

    Engine : Y30dt

    Year : 2003

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    Ah! Im understanding... But i dunno. The sympotms seems to be something mechanic failure. The car is now on the opel dealer (again) but i Will try to pick UP the car and see all the pipes. Maybe theres a leak... I Will see. Thanks! I Will keep you posted

  2. #12
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    Vehicle : Vectra

    Trim : Caravan

    Engine : Y30dt

    Year : 2003

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    An update
    Now i cant even almost drive my car. If i floor it between 2000-3000 rpm the car judders and stays at the rpm, no matter what position the throttle pedal is. Smokes a bit Grey and doesnt move. Then i lift ff, press again gently, judders a little and goes back to normal. With tech2, me and mechanic took a spin and the pressure on rail is always equal but the EGR valve showed some erratic values.egr blanked now, better low Rpms but the issue stays the same. Instant consumption doesnt drop. Maybe thinking on cleaning the throttle body, change the fuel filter again and see what happens...

  3. #13
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    Vehicle : Vectra

    Trim : Caravan

    Engine : Y30dt

    Year : 2003

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    it appeard to be the fuel filter.it was clogged. put a new filter and is running smooth

  4. #14
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    Quote Originally Posted by NickT View Post
    If the symptoms have only started since you did the service, and this included the fuel filter, is be inclined to check the fuel filter again for the seal, the internal o rings off the seal and that the fuel system was bled correctly to remove all air.

    On my z30 I do this by bleeding fuel from the top most part of the fuel system at the top of the engine.
    result

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