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Thread: Annoying hesitation

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

    Vehicle : Vectra C

    Trim : Club

    Engine : 1.9 CDTi

    Year : 2004

    confused Annoying hesitation

    Evening all,

    04 1.9 Cdti 120 8v

    I have an annoying hesitation at low revs (~1k).

    It happens for example when either slowly rolling in traffic in 2nd then applying throttle gently, if you have to lift off then apply throttle again, there seems to be a slight hesitation.

    The car has recently had a cambelt kit, new waterpump, oil & filter change and fuel filter change.

    Millers diesel additive used at every tankful, and the car trawls the motorway for 70 miles daily after gently being warmed up.

    I don't tend to drive very aggresively and wondering if giving it the beans for a few miles might get rid of it.

    I will tonight be changing the air filter and pollen filter to complete the service as she's just hit 100k.

    Any thoughts on the common causes of this?

    Fanks and all that....

  2. #2
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    Vehicle InfoStats

    Vehicle : 1.9CDTi(120)SRi


    Engine : 1.9DT

    Year : 05

    Mileage : 100k

    Default

    Time for an EGR and boost sensor clean, and throttle butterfy clean whilst its off. It may be worth checking all the turbo vac pipes too for perishing on the elbows.

  3. #3
    Regular Member mcpitman's Avatar
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    Vehicle : Vectra C

    Trim : Club

    Engine : 1.9 CDTi

    Year : 2004

    Default

    EGR, boost sensor, and throttle body cleaned ion Feb when I replaced the thermostat.....

    I will have to start checking the boost hoses tomorrow.

    May have to clear the cobwebs off it tonight on the way home from work and see if that helps too.

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