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Thread: EGR Valve and very smokey at start up

  1. #1
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    Vehicle : 1.9 TDi SRi

    Trim : SRi

    Engine : 150bhp diesel

    Year : 2008

    Mileage : 65000

    Default EGR Valve and very smokey at start up

    I know this has been asked a few times but dont know if these two probs are linked in some way on my vectra 150 cdti

    Occassionally the emisions light comes on but it usually comes on if cruising on motorway at a constant speed, say around 80 ish in 6th. Causes a small loss of power and then back to normal. Seems normal acceleration and fuel consumption (going by computer). Then light will tend to stay on about a day max but might go off sooner if done a few small runs soon after it came on.
    1st thing on a morning car smokes ALOT on start up for around 5-10 secs and the smoke isfuely smelling grey smoke, doesnt look as though it is water and definately not an oily smell.
    I have had a couple of redex type supliments through as car wasnt doing too good on mph, seems a little better now though but just running on diesel now with no addative and still the bad smoke and occassional emmisions light.
    It is annoying me to the point of doing something about it but with the weather being so cold I didnt want to start stripping off too many sensors/egr valves etc etc and would rather go for the most likely cause. If the car is warm there is no smoke
    Any help would be greatly apreciated, I have a tin of EGR Valve cleaner ready and waiting if that is the most likely suspect.

    Thanks in advance

    Shaun

  2. #2
    Regular Member justin32's Avatar
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    give it a go mate and give it a clean,it wont do any harm.Just make sure u do a propper clean and strip the egr down

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    Quote Originally Posted by justin32 View Post
    give it a go mate and give it a clean,it wont do any harm.Just make sure u do a propper clean and strip the egr down
    I presume it is fairly straight forward to strip down, the question is though could it be the cause of my symptoms as it is going to bleeding freezing tomorrow lol

  4. #4
    Regular Member justin32's Avatar
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    what engine do you have mate?

    Mine used to smoke bad and i brought a new egr valve and it helped a little bit but what did get rid of the smoke was cleaning out the throttle body and cleaning the manafold where the TB sits

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    Its a 150 cdti on a 08 plate.
    What do you mean by TB

  6. #6
    Regular Member justin32's Avatar
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  7. #7
    Regular Member justin32's Avatar
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    have a look at these,they are the most common problems

  8. #8
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    Thanks matey

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