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2006 - 14L Detroit Series 60 Questions

Discussion in 'Trucks [ Eighteen Wheelers ]' started by US MARINE, Aug 10, 2013.

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  1. Aug 10, 2013 #21
    MNdriver

    MNdriver Road Train Member

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    That would put you right around 1400 RPM then.
     
    MNdriver, Aug 10, 2013
    MNdriver, Aug 10, 2013
    #21
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  3. Aug 11, 2013 #22
    US MARINE

    US MARINE Heavy Load Member

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    No - at 58 im hovering just a smidge above 1300
     
    US MARINE, Aug 11, 2013
    US MARINE, Aug 11, 2013
    #22
  4. Aug 11, 2013 #23
    MNdriver

    MNdriver Road Train Member

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    Cruise at 1425 rpm
     
    MNdriver, Aug 11, 2013
    MNdriver, Aug 11, 2013
    #23
  5. Aug 11, 2013 #24
    US MARINE

    US MARINE Heavy Load Member

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    1425 is right at 65 just under
     
    US MARINE, Aug 11, 2013
    US MARINE, Aug 11, 2013
    #24
  7. Aug 11, 2013 #25
    MNdriver

    MNdriver Road Train Member

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    the DD 14L S60 seems to like that 1400-1450 range. I set it at 1425 and let it run on the cruise. Lopes along all day until I decide to shut down.
     
    MNdriver, Aug 11, 2013
    MNdriver, Aug 11, 2013
    #25
  8. Aug 12, 2013 #26
    Boardhauler

    Boardhauler Road Train Member

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    FWIW my tach is about 200 rpm off. It drove me crazy til I figured it out. When it reads 1400, I'm actually about 1600. I had it in a dealers shop & they said there was nothing they could do. The first thing I would do with a Scanguage is compare the guage to the tach. If the Scanguage matches the tach, then I would believe I have a glitch in my ecm.
     
    Boardhauler, Aug 12, 2013
    Boardhauler, Aug 12, 2013
    #26
  9. Aug 12, 2013 #27
    US MARINE

    US MARINE Heavy Load Member

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    My tach matches the scan G - matches the dealers computer ..
    No way tach is off
     
    US MARINE, Aug 12, 2013
    US MARINE, Aug 12, 2013
    #27
  10. Aug 12, 2013 #28
    US MARINE

    US MARINE Heavy Load Member

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    But I understand what your saying , on the RPMS could be off due to a bad tach or ECM sensor etc
     
    US MARINE, Aug 12, 2013
    US MARINE, Aug 12, 2013
    #28
  11. Aug 12, 2013 #29
    US MARINE

    US MARINE Heavy Load Member

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    The only thing that don't jive with the Scan G is my MPG
    today ...
    Scan G = 7.9
    Trip computer = 8.1

    this is pulling 42k loaded and been around 1375 rpm kept boost under 20 for most part today , I've noticed if you down shift sooner you can keep your boost lower and Turbo Rpm lower - hence better economy also .

    tomorrow I test MN's theory on 1425 and see where I end up for the day . I will post results . Same load everything . I got 557 miles today's results tomorrow I should get 575 or so .
     
    US MARINE, Aug 12, 2013
    US MARINE, Aug 12, 2013
    #29
  12. Sep 8, 2013 #30
    burgess2580

    burgess2580 Bobtail Member

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    Aug 26, 2013
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    I need to figure out how to get rid of the vent and go mechanical any body no how
     
    burgess2580, Sep 8, 2013
    burgess2580, Sep 8, 2013
    #30
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