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2015 Cummins isx lope at idle while cold

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Petegraintrain, Dec 7, 2021.

Page 2 of 2
  1. Dec 12, 2021 #11
    God prefers Diesels

    God prefers Diesels Road Train Member

    4,198
    22,262
    Jun 26, 2020
    South Texas
    0
    Unless I'm going deaf, it just sounds like a cold diesel to me. Sounds really good. Much better than my ISX, that's for #### sure. Mine literally lopes cold for about 30 seconds like it's a small block with a wicked cam.
     
    God prefers Diesels, Dec 12, 2021
    God prefers Diesels, Dec 12, 2021
    #11
    bzinger Thanks this.
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  3. Dec 12, 2021 #12
    Petegraintrain

    Petegraintrain Bobtail Member

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    Sep 29, 2018
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    Engine is at running temperature
     
    Petegraintrain, Dec 12, 2021
    Petegraintrain, Dec 12, 2021
    #12
  4. Mar 26, 2022 #14
    2016petedump

    2016petedump Bobtail Member

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    Mar 26, 2022
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    Did you get the rough idle figured out? I’ve got a 2016 that does the same thing until it gets to around 45F or 50F degrees outside.
     
    2016petedump, Mar 26, 2022
    2016petedump, Mar 26, 2022
    #14
  6. Mar 26, 2022 #15
    Petegraintrain

    Petegraintrain Bobtail Member

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    Sep 29, 2018
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    Sure did! Swapped that piece of #### out for a Signature 600
     
    Petegraintrain, Mar 26, 2022
    Petegraintrain, Mar 26, 2022
    #15
    lwlevens Thanks this.
  8. Mar 26, 2022 #15
    Petegraintrain

    Petegraintrain Bobtail Member

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    Sep 29, 2018
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    But no i did actually fix that lope. Had to get a different tune in it
     
    Petegraintrain, Mar 26, 2022
    Petegraintrain, Mar 26, 2022
    #15
  9. Mar 27, 2022 #17
    2016petedump

    2016petedump Bobtail Member

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    Mar 26, 2022
    0
    Did the tuner say why the tune was making the truck run choppy when cold? Thanks for the info cus mine has been driving me nuts!
     
    2016petedump, Mar 27, 2022
    2016petedump, Mar 27, 2022
    #17
  10. Mar 27, 2022 #17
    Petegraintrain

    Petegraintrain Bobtail Member

    30
    4
    Sep 29, 2018
    0
    Mine was deleted. I'm assuming yours is too? Because my truck was trying to heat up the SCR can even tho it wasn't on the truck anymore. So it wasn't properly deleted
     
    Petegraintrain, Mar 27, 2022
    Petegraintrain, Mar 27, 2022
    #17
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