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2009 cummins isx issue

Discussion in 'Trucks [ Eighteen Wheelers ]' started by thejackal, Jan 25, 2016.

  1. Jan 25, 2016 #1
    thejackal

    thejackal Road Train Member

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    Mar 1, 2014
    detroit mi
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    I hope this is the right forum to post this I have a question about a Cummins ISX performance I recently had all 6 injectors replaced and now it's falling on its face going up the hill it acts like my EgT sensor is bad. It's not the turbo because its not consistent and it only does it going up a hill pulling a heavy load. Any thoughts r appreciated.
     
    thejackal, Jan 25, 2016
    thejackal, Jan 25, 2016
    #1
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  3. Jan 26, 2016 #2
    Snailexpress

    Snailexpress Road Train Member

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    Rocky
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    What Cummins ISX do you have? CM 871?
    Go to Rawze.com
     
    Snailexpress, Jan 26, 2016
    Snailexpress, Jan 26, 2016
    #2
  4. Jan 26, 2016 #3
    thejackal

    thejackal Road Train Member

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    detroit mi
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    Ya I'm searching rawze but wondered if anyone else had this issue. I'm hoping it's just a sensor on it's way out.
     
    thejackal, Jan 26, 2016
    thejackal, Jan 26, 2016
    #3
  5. Jan 26, 2016 #4
    Hardlyevr

    Hardlyevr Road Train Member

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    A bad turbo actuator can be intermittent and give you those symptoms.
     
    Hardlyevr, Jan 26, 2016
    Hardlyevr, Jan 26, 2016
    #4
    thejackal Thanks this.
  7. Jan 27, 2016 #5
    texasdante

    texasdante Bobtail Member

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    Jan 25, 2016
    El Paso, Texas
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    Dirty DPF filter feels like turbo isn't working. Might be that.
    It's also cheapest so might as well start by taking it to a local dealer to clean it.
     
    texasdante, Jan 27, 2016
    texasdante, Jan 27, 2016
    #5
    thejackal Thanks this.
  8. Jun 21, 2016 #6
    cumminskid123

    cumminskid123 Light Load Member

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    Jun 21, 2016
    Manitoba, Canada
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    Do you have any engine codes? do you have dpf?
     
    cumminskid123, Jun 21, 2016
    cumminskid123, Jun 21, 2016
    #6
  9. Jun 24, 2016 #7
    dustinbrock

    dustinbrock Road Train Member

    1,308
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    Apr 19, 2012
    North Battleford, SK
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    A coworker just had a similar issue but he describes his as seeming like his turbo would just stall out and his truck would lose power.... it was his turbo actuator.
     
    dustinbrock, Jun 24, 2016
    dustinbrock, Jun 24, 2016
    #7
  10. Jun 24, 2016 #8
    Sipesh

    Sipesh Medium Load Member

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    Apr 3, 2014
    Colorado
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    Easiest first step is to clean or replace your intake manifold pressure sensor. Takes about 5 minutes to pull it, see if it's all crapped up, brush it off, and put it back in. Only costs about 20 bucks for a new one. If it's choked up with carbon, it could be tripping you into a silent derate. The exhaust back pressure sensor can do the same thing, but it's a little more expensive to replace, about 100 bucks, and it can't really be cleaned. It will trip your engine out and tell you your EGTs are all screwed up when they're not.
     
    Sipesh, Jun 24, 2016
    Sipesh, Jun 24, 2016
    #8
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