Question regarding idling

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Thetrashnoob, Jul 4, 2020.

  1. Thetrashnoob

    Thetrashnoob Light Load Member

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    I know you don’t want to idle the new emessions trucks, but how bad would it be to idle the truck a few nights a month?
     
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  3. truckdriver31

    truckdriver31 Road Train Member

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    your truck or company truck
     
  4. Heavyd

    Heavyd Road Train Member

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    It is bad. You can run them, but you need to increase the rpm to about 900-1100. Regular idle is just too low and combustion temps are too cold which leads to carbon packing and cylinder wall washing out.
     
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  5. Thetrashnoob

    Thetrashnoob Light Load Member

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    Mine
     
  6. MACK E-6

    MACK E-6 Moderator Staff Member

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    Anybody know how to this on a 579 Pete with an X-15?
     
  7. Opus

    Opus Road Train Member

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    Dunno about an X-15, but on a Detroit you turn on the cruse and advance the RPMs by pushing the 'resume' button. On the older ones, you advanced the RPMs with the 'accelerate' toggle switch.
     
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  8. Roberts450

    Roberts450 Road Train Member

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    Its like @Opus said if its enabled in the ECM also most likely it will cancel the auto regen feature so I don’t recommend it with the cummins motor’s. Just let it idle and let the ECM do its thing.
     
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  9. Brandt

    Brandt Road Train Member

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    I would not even worry about a couple nights a month. The newest emissions trucks will do automatic Regen when needed. That what Freightliner with Detroit engine do. Every 6 hours of parked idle time. It will do a 20 minute Regen automatically. It's nice how the new engines are doing that automatically.
     
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  10. pushbroom

    pushbroom Road Train Member

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    No higher then 1000 on an x15. Above 1000 the turbo cant clamp down to make the heat required to regen.
     
    Last edited: Jul 5, 2020
  11. Roberts450

    Roberts450 Road Train Member

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    The other thing the cummins can do if enabled in the ECM is very the base idle from 600-800. On my 388 my idle was set at 700 but if I turned the cruise switch off using the set/resume you could very the base idle from 6-800 rpm but once you cycled the key switch it would go back to the normal set rpm. I would often bump to 800rpm and lock the fan on for better A/C and when using my 12v lunchbox to cook dinner and the truck would still do a regen if required in the middle of my 10.
     
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