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Thread: V6CDTi - Erratic idling

  1. #1
    Regular Member Celes's Avatar
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    Vehicle InfoStats

    Vehicle : Opel Signum

    Trim : Sport

    Engine : 3.0 CDTI

    Year : 12/03

    Default V6CDTi - Erratic idling

    Recently the car has decided to rise its idle to 1000rpm. Will drop down to 700rpm if I put it in gear and drive around in 1st, but will go up again when in neutral.
    Sometimes when the engine is cold and I change up to second, but keep the clutch down, the engine rpm drop to 550rpm for a few seconds...

    Anyone got a clue?

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    crank shaft sensor may be on the way out, but before that check all your vacume hoses

  3. #3
    Regular Member Celes's Avatar
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    Slovenia, Koper
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    Vehicle : Opel Signum

    Trim : Sport

    Engine : 3.0 CDTI

    Year : 12/03

    Default

    It's done it twice today when the engine was at 70°C.

    All hoses are OK and the engine still pulls like a tank.

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