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New to me Cascadia 126 questions

Discussion in 'Freightliner Forum' started by golfnut34, Dec 15, 2025 at 6:56 PM.

  1. Dec 15, 2025 at 6:56 PM #1
    golfnut34

    golfnut34 Bobtail Member

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    I bought a 2020 Cascadia 126 today with a DD15/DT12 combination. Drove it home 6 hours and everything went fine with the exception of the coolant level sensor being bad so I had to unplug it. Coolant tank is full but sensor says its empty. I'll take to the the local dealership later this week but before I do I have a few questions.
    1. It is currently set at 450 hp. No idea what torque setting is. Can all DD15 engines be turned to the 505 or 515 setting?
    2. The transmission shifts smooth and says "Economy" under the gear number. Is there a "Performance" option they can change it to?
    3. It has an idle shut down timer on it that wants to shut it down after about a minute of idling. This is unacceptable for me as it will be a pulling a hopper bottom and sitting under augers for 5-8 minutes at a time. Will they be able to disable this or lengthen it to 10-15 minutes?
    4. It is currently governed at 70 mph. Plenty fast for 95% of what we will do but it needs to go away.
     
    golfnut34, Dec 15, 2025 at 6:56 PM
    golfnut34, Dec 15, 2025 at 6:56 PM
    #1
    Trucker61016 Thanks this.
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  3. Dec 15, 2025 at 7:54 PM #2
    North Pole Nightmare

    North Pole Nightmare Heavy Load Member

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    #3 You can change that time limit on the dash,go through the settings and you will see the idle timer limit.
    #2 It also has a performance setting in the transmission,have to hook it up to a computer to change that.The performance set up runs a little better if in the mountains.
     
    North Pole Nightmare, Dec 15, 2025 at 7:54 PM
    North Pole Nightmare, Dec 15, 2025 at 7:54 PM
    #2
    OldeSkool and Trucker61016 Thank this.
  4. Dec 15, 2025 at 10:34 PM #3
    OldeSkool

    OldeSkool Road Train Member

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    #2 mine had three options when pushing the button in on the end of the shifter. Economy, Performance, and Manual which allowed you to manually upshift it.

    I do know some are programmed to only run on Economy, but yes definitely you should be able to have all three options. Just for the record, I never noticed much difference between economy and performance.

    #3 mine idled thirty minutes before shutting off so it should be able to go at least that long.

    As far as the rest idk. Mine was governed at 70 which was fine, and never tried to tune the engine.
     
    OldeSkool, Dec 15, 2025 at 10:34 PM
    OldeSkool, Dec 15, 2025 at 10:34 PM
    #3
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