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Thread: Car felt like it didn't want to slow and loads of black smoke

  1. #1
    Regular Member Morephun's Avatar
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    Vehicle : vec c

    Trim : sri

    Engine : 150 cdti

    Year : 55

    Mileage : 108000

    Default Car felt like it didn't want to slow and loads of black smoke

    As above guys just on the way back from work doing 70 ISH and the car wouldn't slow down and was blowing loads of black smoke...the car went back to normal and the smoke stopped? Any ideas...thanks

    derv 150 55plate....thanks guys

    Sent from my GT-I9100 using westcrips Ics rom and Tapatalk

  2. #2
    Regular Member Morephun's Avatar
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    Vehicle : vec c

    Trim : sri

    Engine : 150 cdti

    Year : 55

    Mileage : 108000

    Default

    Sorry using tapatalk and can't find the right section...can a mod move plz....thanks

    Sent from my GT-I9100 using Tapatalk

  3. #3
    Regular Member stevie16v's Avatar
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    Vehicle : Vectra

    Trim : SRI XP1



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    Possibly turbo on the way out mate. Sounds like oil is getting into it some how. Unusual for it to come then go though

  4. #4
    VIP-Member Damo77's Avatar
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    Vehicle : Vectra

    Trim : SRi

    Engine : 1.9 CDTi 8v

    Year : 55

    Mileage : 92,000

    Default

    Thinking along the same lines as you stevie. Think they call it "run away"

    Example of it here:-

    [ame="http://www.youtube.com/watch?v=3NRaqgab0_w"]RUN AWAY Detroit Diesel! 453-T - YouTube[/ame]

    [ame="http://www.youtube.com/watch?v=58SoI7YKr4o&feature=related"]BMW X5 Engine Problems - YouTube[/ame]

    Might be worth getting your turbo looked at to be on the safe side mate.

    Good luck
    Already replaced:-
    Alternator,
    Drilled/Grooved Discs & Pads, Eibach Springs, EGR Valve, 50W HID's 6000k, K&N Panel Filter, LED footwell & boot lights

  5. #5
    Regular Member hoochydady's Avatar
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    Default

    yip it could well be runaway or run on and if it is i would get it looked at asap or next time it may go bang ,now here is the thing i dont know if your 55 has a dpf if so it may just have been a re gen

  6. #6
    VIP-Member Damo77's Avatar
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    Vehicle : Vectra

    Trim : SRi

    Engine : 1.9 CDTi 8v

    Year : 55

    Mileage : 92,000

    Default

    Some info I found on the net a while back

    __________________________________________________ __________________

    Run away diesel, why does it happen?


    Run away diesel:
    This is a known problem with diesels, and any diesel engine can have it happen.

    What causes it?
    The answer is unregulated fuel entering the combustion chamber.

    Why is it dangerous?
    Because; the normal way you shut down a diesel engine is by stopping the fuel from getting to the combustion chamber.


    How can you stop a run away diesel?

    There are three ways I know of to shut down a run away diesel:
    #1. Seal the air intake and starve it, this can be impossible if the duct work is on the intake.
    #2. Shove a 20 pound HALON or CO2 fire extinguisher in the intake and empty it.
    #3. Run for your life and come back when it has stopped naturally.
    Danger:
    Never use water, it is none compressible and will break pistons and rods; this can puncture the block and throw pieces hard enough to kill you.


    Diesel engine cycle theory:

    To understand the problem you must understand diesel engine cycle theory; intake stroke, regulated fuel is injected, compression stroke, power stroke, and exhaust stroke vents the cylinder.

    A diesel engine will burn a very wide variety of fuel, especially when at operating temperature, fuel is fuel, if it burns the engine will run, crank case oil will burn as fuel.
    Diesels are called oil squeezers because the friction heat of compression causes combustion.
    There is no throttle; engine acceleration is controlled by the volume of fuel injected.
    A diesel will keep accelerating for as long as increasing volumes of fuel and air enter the combustion chamber, the end result is that it will reach destructive engine speeds that will break things or explosively disassemble your engine.
    Even professional diesel mechanics have had diesels run away.


    General causes of a run away diesel:
    If the turbo seal leaks on the intake side, it feeds unregulated fuel into the combustion chamber.
    If the piston rings leak on the compression stroke, the crank case oil mist gets blown through the CCV (crank case vent) and into the intake, this feeds unregulated fuel into the combustion chamber, add a restricted or dirty air filter and you have a run away diesel.
    An over full crankcase oil level can cause massive unregulated fuel into the combustion chamber leading to a run away diesel.
    If the intake valve guides leak and the head oil drains are clogged with sludge, it feeds increasing amounts of unregulated fuel into the combustion chamber, which can cause or contribute to a run away.
    If the piston rings leak on the intake stroke, it feeds unregulated fuel into the combustion chamber.
    The larger the volume of unregulated fuel going into the combustion chamber, the greater the risk of a run away diesel.

    Your best defense against a runaway is:
    #1. A clean intake system and air filter.
    #2. Regular oil changes.
    #3. Keeping a log of oil consumption.
    #4. Watching for excess smoke in the exhaust.

    Hope that helps
    Already replaced:-
    Alternator,
    Drilled/Grooved Discs & Pads, Eibach Springs, EGR Valve, 50W HID's 6000k, K&N Panel Filter, LED footwell & boot lights

  7. #7
    Regular Member Morephun's Avatar
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    Vehicle : vec c

    Trim : sri

    Engine : 150 cdti

    Year : 55

    Mileage : 108000

    Default

    Balls the car is now making a whining noise on turbo....is the turbo shot ,not getting any more smoke tho?
    Knew I should've stayed away from the veccy derv grrrrrr

    Sent from my GT-I9100 using Tapatalk
    Last edited by Morephun; 9th April 2012 at 17:41.

  8. #8
    New Member erni3wi5e's Avatar
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    A gd way to check is to take off the pipe from ur turbo to the intercooler n look for oil inside.

  9. #9
    Regular Member Morephun's Avatar
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    Vehicle : vec c

    Trim : sri

    Engine : 150 cdti

    Year : 55

    Mileage : 108000

    Default

    Thanks m8 will check tomorrow it's just started raining heavy, oh how lucky am I at the min lol

    Now where's them 2.0t facelift Vecs on autotrader :-)

    Sent from my GT-I9100 using Tapatalk

  10. #10
    North West Regional Organiser paulvectrac's Avatar
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    Vehicle : vectra

    Trim : vxr

    Engine : 2.8 v6 turbo

    Year : 2007

    Default

    as above mate it oil is gettin in somwhere a derv can keep running on oil if it does come to the point when u carnt stop it stall it in 4th
    Vectra vxr custome remaps egr deletes dpf and diagnostic work all remaps are custome bench tuning avalible all genuine equipment PM for info

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