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Thread: Cold starting problem continues!! Need Help!

  1. #1
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    Default Cold starting problem continues!! Need Help!

    2005 vectra cdti 150. 72k

    So about a month ago I suddenly started having trouble starting the car from cold.. I wait for the coil light to go out (sometimes repeat a couple of times before starting) and the car struggles to fire up.. Verry lumpy idle almost sounds like its knocking.. But once I give it a bit of accelerator a big cloud of smoke comes out the back.. The idle settles down and the car runs fine with no problems.. It also starts normally once warm and shows no other symptoms while driving apart from maybe a slight variation of revs on idle (hardly noticeable) no warning light are presented.

    To eliminate some possible causes here are the fixes I have recently done to the car...

    new glow plugs fitted.
    egr replaced.
    boost pipes replaced.
    mass airflow metre replaced.
    boost control sensor replaced.
    injector wiring upgrade connectors x4

    also I have never replaced the battery so nothing to do with wrong battery.. But could possibly be time for a new one???

    im starting to lean towards the injectors them selves but want to exhaust all other avenues before taking it to a garage.

    this is quite a specific problem and iv not had any luck searching the boards for an answer so I could do with the help of the forum now.

    Any suggestions????

  2. #2
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    Default

    have you changed the fuel filter and/or checked to make sure its not leaking?

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    Default

    I never thought to check it as it runs fine once started.. But I will try that next. Do you think that could cause these symptoms? Would a leaking fuel filter cause starting issues?

    thanks for the quick reply!

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    Mpg is still good also on long journeys as I regularly drive over 400 miles every couple of weeks.

  5. #5
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    Vehicle : 1.9CDTi(120)SRi


    Engine : 1.9DT

    Year : 05

    Mileage : 100k

    Default

    Have you checked to see if a voltage is getting to the glow plugs? It does sound like they are not working.

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    What do I need (tool) to check the voltage? And how would I go about checking it? Sould like a good place to start.. If it is low voltage to the plugs what would I need to replace? Battery?

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    Any info on replacing leak off pipes on the injectors? Are they a special part or can I buy silicone pipe to replace them with?

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    Engine : Z18XER


    Default

    Unplug coolant temperature sensor and see how it starts

  9. #9
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    Vehicle : SIGNUM 1.9 CDTI ELITE

    Trim : ALL OPTIONS ELITE

    Engine : 1.9 CDTI 150

    Year : 2005

    Mileage : 140,000

    Default

    ....colour of smoke when its cold and you start it?

    Ours does pretty much the same dance when starting from cold and the smoke from ours is kind of black with some blue in it.....look for the blue! I am thinking with ours it is the valve stem seals leaking during the night as thru out the day after the first start it is fine.
    Other things to check are.....inlet manifold operation and the glow plug ECU/controller, I have tackled the inlet manifold with excellent results for the power issues but still have the similar problem to yours so next on list is to test the glow pre glow plug module.

  10. #10
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    Vehicle : SIGNUM 1.9 CDTI ELITE

    Trim : ALL OPTIONS ELITE

    Engine : 1.9 CDTI 150

    Year : 2005

    Mileage : 140,000

    Default

    Quote Originally Posted by troutybrown View Post
    Unplug coolant temperature sensor and see how it starts
    Hi,
    where is this sensor please?

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