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Thread: rough start up blue smoke only in morning or after sitting a while.

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  1. Unhappy rough start up blue smoke only in morning or after sitting a while. 
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    hi all, recently my car is difficult to start when the engines cold ie mornings.
    once warmed up its fine and starts no problem.
    heres a video
    TDI Audi a4 blue/Grey smoke start up? - YouTube
    many thanks!
     
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  2. Re: rough start up blue smoke only in morning or after sitting a while. 
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    That says glow plugs, a fault code read will tell you if they are faulty or if it is something else like the coolant temperature sender.
    Anthropogenic climate change, the biggest con inflicted on mankind since religion...

    Slava Ukraini
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  3. Re: rough start up blue smoke only in morning or after sitting a while. 
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    Hi, thanks for the reply, would there not be a light on the dash if there was a fault? I have a obd2 scanner but no fault codes appear. Thanks.
     
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  4. Re: rough start up blue smoke only in morning or after sitting a while. 
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    the fault is probably not in obd, and only some faults put the light on . get it scanned with a proper computer like vcds.
    Audi 80 tdi avant with 360,000 miles...
     
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  5. Re: rough start up blue smoke only in morning or after sitting a while. 
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    Quote Originally Posted by zollaf View Post
    the fault is probably not in obd, and only some faults put the light on . get it scanned with a proper computer like vcds.
    ok thanks for the reply zollaf
     
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