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DDEC 6 to DDEC 5 ECM and Harness

Discussion in 'Experienced Truckers' Advice' started by LoneRanger, Aug 11, 2018.

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  1. Aug 11, 2018 #1
    LoneRanger

    LoneRanger Road Train Member

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    I have a 08 Columbia with a DD S60 14L DDEC 6. I want to know if I can switch the ECM to DDEC 5 if I use a DDEC 5 engine harness.
     
    LoneRanger, Aug 11, 2018
    LoneRanger, Aug 11, 2018
    #1
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  3. Aug 11, 2018 #2
    mhyn

    mhyn Road Train Member

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    if you want to go back to ddec 5 you will need new turbo , injectors and maybe some sensors..
     
    mhyn, Aug 11, 2018
    mhyn, Aug 11, 2018
    #2
  4. Aug 11, 2018 #3
    LoneRanger

    LoneRanger Road Train Member

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    Ddec5 is not a VGT? Not sure if I’m using the correct term.
     
    LoneRanger, Aug 11, 2018
    LoneRanger, Aug 11, 2018
    #3
  5. Aug 11, 2018 #4
    thaistick

    thaistick Road Train Member

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    DDEC V has a VGT
     
    thaistick, Aug 11, 2018
    thaistick, Aug 11, 2018
    #4
  7. Aug 11, 2018 #5
    Samuelh

    Samuelh Bobtail Member

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    May need a new cam depending on injectors too.
     
    Samuelh, Aug 11, 2018
    Samuelh, Aug 11, 2018
    #5
  8. Aug 12, 2018 #6
    mhyn

    mhyn Road Train Member

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    DDEC 6 and DDEC 5 have different VGT turbos. DDEC 5 has N3 injectors, DDEC 6 has E3 injectors. I am not sure about camshaft...
     
    mhyn, Aug 12, 2018
    mhyn, Aug 12, 2018
    #6
  9. Aug 12, 2018 #7
    Oldironfan

    Oldironfan Road Train Member

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    I think you could revert ddec 6 to ddec 4, no EGR.
     
    Oldironfan, Aug 12, 2018
    Oldironfan, Aug 12, 2018
    #7
  10. Aug 12, 2018 #8
    Dave_in_AZ

    Dave_in_AZ Road Train Member

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    I saw an add for @tucker dream truck today.

    1995 Freightliner condo cab COE. DDec3.

    Said runs perfect, just needs a little TLC.
     
    Dave_in_AZ, Aug 12, 2018
    Dave_in_AZ, Aug 12, 2018
    #8
  11. Aug 12, 2018 #9
    Oldironfan

    Oldironfan Road Train Member

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    I like COEs. Was it an argosy?
     
    Oldironfan, Aug 12, 2018
    Oldironfan, Aug 12, 2018
    #9
  12. Aug 12, 2018 #10
    Dave_in_AZ

    Dave_in_AZ Road Train Member

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    I don't know. I'm thinking it was an old JBHUNT truck once upon a time, which also interests tucker.
     
    Dave_in_AZ, Aug 12, 2018
    Dave_in_AZ, Aug 12, 2018
    #10
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