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Mx 13 egr valve

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by insanityeight, Oct 4, 2018.

  1. Oct 4, 2018 #1
    insanityeight

    insanityeight Light Load Member

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    Jul 26, 2013
    birmingham al
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    can you unplug or trick egr valve to stay closed on mx 13? They guys that programmed mine obviously didnt and my oil is getting black 1000 miles after oil change.
     
    insanityeight, Oct 4, 2018
    insanityeight, Oct 4, 2018
    #1
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  3. Oct 4, 2018 #2
    spsauerland

    spsauerland Road Train Member

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    West Harrison, In
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    Weld Venturi tube shut?
     
    spsauerland, Oct 4, 2018
    spsauerland, Oct 4, 2018
    #2
  4. Oct 12, 2018 #3
    JohnC123

    JohnC123 Light Load Member

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    Jan 25, 2018
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    1000 miles? this is normal, if you "increase" and maintain your service frequency, you can bring it back to more of an iridescent black as opposed to a sooty black. This is the color of engine oil. This can only be good for any motor.
     
    JohnC123, Oct 12, 2018
    JohnC123, Oct 12, 2018
    #3
    insanityeight Thanks this.
  5. Oct 12, 2018 #4
    insanityeight

    insanityeight Light Load Member

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    Jul 26, 2013
    birmingham al
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    No its not normal. My last delete would run close to 8000 miles before oil started turning from gold to black
     
    insanityeight, Oct 12, 2018
    insanityeight, Oct 12, 2018
    #4
  7. Oct 13, 2018 #5
    JohnC123

    JohnC123 Light Load Member

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    Jan 25, 2018
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    Wow, clean engine! sorry I responded.
     
    JohnC123, Oct 13, 2018
    JohnC123, Oct 13, 2018
    #5
  8. Oct 13, 2018 #6
    Oldironfan

    Oldironfan Road Train Member

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    What was last engine?

    Here is what I know. If you unhook the rod connecting the valve to the controller the ecm will derate you 20%. And they will not recalibrate the egr. Only replace the whole thing.

    And it's all the same turbo, and egr as an isx.

    You need a good mechanic to also go into and tune the ecm. If they cant or won't they are a hack job.
     
    Oldironfan, Oct 13, 2018
    Oldironfan, Oct 13, 2018
    #6
    insanityeight Thanks this.
  9. Oct 13, 2018 #7
    Goodysnap

    Goodysnap Road Train Member

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    Well your half right. Turbo is Holset on both. EGR is nothing alike.
     
    Goodysnap, Oct 13, 2018
    Goodysnap, Oct 13, 2018
    #7
    pushbroom, Oldironfan and spsauerland Thank this.
  10. Oct 13, 2018 #8
    uncleal13

    uncleal13 Road Train Member

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    Humboldt, Sk
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    I’ve never owned a Diesel engine that didn’t turn the oil black in short order.
     
    uncleal13, Oct 13, 2018
    uncleal13, Oct 13, 2018
    #8
    insanityeight Thanks this.
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