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Maxxforce 11 going into unwanted regen?

Discussion in 'International Forum' started by joejffrs, Dec 6, 2018.

  1. Dec 6, 2018 #1
    joejffrs

    joejffrs Light Load Member

    54
    14
    Jul 24, 2018
    San Diego
    0
    My 2013 Maxxforce 11, after starting up cold and idling for 4-5 minutes, the RPM will rise to 1400. Had both EGR coolers replaced recently with a successful parked regen after. Cruise is off and regen switch is off. Tap the clutch and goes back to normal idle. Once warm, no advanced idle. Truck runs very well, lots of power. Something to be concerned about?
     
    joejffrs, Dec 6, 2018
    joejffrs, Dec 6, 2018
    #1
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  3. Dec 7, 2018 #2
    Heavyd

    Heavyd Road Train Member

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    Feb 4, 2009
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    Normal. Cold weather warm up.
     
    Heavyd, Dec 7, 2018
    Heavyd, Dec 7, 2018
    #2
    bryan21384 and joejffrs Thank this.
  4. Dec 7, 2018 #3
    joejffrs

    joejffrs Light Load Member

    54
    14
    Jul 24, 2018
    San Diego
    0
    Thanks Heavyd-great relief!
     
    joejffrs, Dec 7, 2018
    joejffrs, Dec 7, 2018
    #3
  5. Dec 7, 2018 #4
    Heavyd

    Heavyd Road Train Member

    7,625
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    Feb 4, 2009
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    Yes, they do scream when cold. It can be scary if you don't know. They want them warmed up asap to reduce emissions, but I really don't like the idea of screaming a cold engine like that.
     
    Heavyd, Dec 7, 2018
    Heavyd, Dec 7, 2018
    #4
    joejffrs Thanks this.
  7. Dec 7, 2018 #5
    bryan21384

    bryan21384 Road Train Member

    12,616
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    Sep 18, 2009
    Memphis, TN
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    That used to bother me like crazy when I drove them. Then you will see all the exhaust coming out in clouds. I never understood why manufacturers thought it made sense to have the engine work that hard from cold start. I will add this, if after about 30 min or so it don't return to normal idle, that may be a problem
     
    bryan21384, Dec 7, 2018
    bryan21384, Dec 7, 2018
    #5
    Heavyd and joejffrs Thank this.
  8. Dec 7, 2018 #6
    joejffrs

    joejffrs Light Load Member

    54
    14
    Jul 24, 2018
    San Diego
    0
     
    joejffrs, Dec 7, 2018
    joejffrs, Dec 7, 2018
    #6
  9. Dec 7, 2018 #7
    joejffrs

    joejffrs Light Load Member

    54
    14
    Jul 24, 2018
    San Diego
    0
    I’ve been tapping the clutch to bring it back down to idle and letting it warm up that way. Engine seems to struggle getting to 1400 RPM and the white cloud of exhaust you mentioned. Just doesn’t seem right!
     
    joejffrs, Dec 7, 2018
    joejffrs, Dec 7, 2018
    #7
    Heavyd Thanks this.
  10. Jan 22, 2020 #8
    joejffrs

    joejffrs Light Load Member

    54
    14
    Jul 24, 2018
    San Diego
    0
    An update on something I discovered today-after cold start, if I turn on the cruise control, the engine stays at normal idle. A lot less annoying!
     
    joejffrs, Jan 22, 2020
    joejffrs, Jan 22, 2020
    #8
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