volvo black and gray smoke problem....????

Discussion in 'Trucks [ Eighteen Wheelers ]' started by 2004volvo, Aug 23, 2014.

  1. 2004volvo

    2004volvo Bobtail Member

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    Aug 23, 2014
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    I have a 2004 volvo 670 cummins isx ..recently changed turbo and black/gray smoke started extremely... Also getting power on gas and codes came on for valve too high mid 128....fuel filter pressure drop electrical fault ...egr is off...what could it be everything started once I changed the turbo and its so bad the whole inside of my truck is black from smoke
     
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  3. Alberta-Mechanic

    Alberta-Mechanic Light Load Member

    Well if the inside is black is there possibly a leak around turbo is it smoking under hood. Also check turbo actuator the valve on. Turbo is somthing wrong there
     
  4. 2004volvo

    2004volvo Bobtail Member

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    Aug 23, 2014
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    I think the smoke getting inside is due to manifold issue and the actuator seems to be fine
     
  5. Alberta-Mechanic

    Alberta-Mechanic Light Load Member

    Hmm it sounds like turbo is screwed. I'm kinda stumped. Lol what I would do is unclamp pipe from rear of turbo and look Inside turbo and down pipe to see if there's any thing coming threw Turbo. If it's all wet I'd say that actuator is leaking in but it could also be pushing from mainafold. Black smoke mean Unburnt fuel white means water in engine and blue means oil. I'd Also check fuel sensors and wires. Maybe when you put turbo on you knocked a sensor or sashed a pair of wires together I have done this makes for a chalangeing problem get back to me let me know if that helped. I also suggest you go to cummins quick serve and start account it's free and you can put your engine serial number in and go threw a trouble shooting trees get wireing diagrams ect it will even teach a guy how to test sensors or even that actuator. That's how all the online mechanics do it lol
     
  6. 2004volvo

    2004volvo Bobtail Member

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    Aug 23, 2014
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    Thank you I will definitely try it... never hurts to learn something lol
     
  7. Alberta-Mechanic

    Alberta-Mechanic Light Load Member

    What did you change turbo for was it broke or close or causing performance issue?
     
    2004volvo Thanks this.
  8. Mattnatti

    Mattnatti Light Load Member

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    Jul 10, 2014
    Cincinnati, Ohio
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  9. 2004volvo

    2004volvo Bobtail Member

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    Aug 23, 2014
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    Just performance issues but when I took it off I found waste gauge was broken. .. it was time to invest in a new one but now I have bigger issues I think the turbo caused
     
  10. Alberta-Mechanic

    Alberta-Mechanic Light Load Member

    I will any time no warranty lol
     
  11. 2004volvo

    2004volvo Bobtail Member

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    Aug 23, 2014
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    I couldn't log back in to that account for some reason so I had to make a new one. ..I don't use this that often ...is it an issue or are you just bored????
     
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