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Thread: 2018 RAM 4500 Cummins 6.7L Throttle Response?

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    Basic Member easttxram's Avatar

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    2018 RAM 4500 Cummins 6.7L Throttle Response?

    It’s hard for me to find anything to gripe about on these trucks once they’re deleted, but the throttle response downright sucks on my 2018 4500.

    It’sentirelyy deleted with the MM3 from DRD, and everything is just right.

    The tunes have a nice hard pull without endangering the hard parts-good power without destruction.

    My 2014 2500 has the RaceME Ultra setup and has no problem with the throttle response.

    I’m just wondering if there’s something different between 2014 and 2018 or 2500 and 4500.

    And is that a fix?

    It’s only from dead idle, like when you need to jump across a street or get out in traffic fast.

    It’s bad enough that it’s a little dangerous on a truck as heavy as a 4500.

    Could Ray fix it with programming, or do I need another fix?

    I know there are differences between the regular trucks and the C&C’s, but I’d be willing to bet they use the same throttle setup.

    Any ideas?


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    WE WILL STAND! IGOTACUMMINS's Avatar

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    2018 RAM 4500 Cummins 6.7L Throttle Response?

    What trans is in your 2014?


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    "The grass is greener where you water it"


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    No Vacancy Power247's Avatar

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    2018 RAM 4500 Cummins 6.7L Throttle Response?

    That sounds like the factory de-rate they program in the C&C trucks.

    Tuning can help significantly.

    If you're not ready to pull the trigger on full tuning, many guys seem happy with Pedal Commander or similar throttle sensitivity boosters.

    Greg
    2012 | RAM 2500 | CCSB | MM3 tuned by Double R Diesel
    2016 | Heartland Pioneer | DS310

    Greg
    2019 | RAM 2500 | CCSB | 6.4 HEMI

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    WE WILL STAND! IGOTACUMMINS's Avatar

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    2018 RAM 4500 Cummins 6.7L Throttle Response?

    Quote Originally Posted by Power247 View Post
    That sounds like the factory de-rate they program in the C&C trucks.

    Tuning can help significantly.

    If you're not ready to pull the trigger on full tuning, many guys seem happy with Pedal Commander or similar throttle sensitivity boosters.

    Greg
    2012 | RAM 2500 | CCSB | MM3 tuned by Double R Diesel
    2016 | Heartland Pioneer | DS310
    He's already tuned by DRD, but the Aisin trans is the issue.

    We bet his 14 has the 68RFE.


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    Basic Member easttxram's Avatar

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    2018 RAM 4500 Cummins 6.7L Throttle Response?

    Quote Originally Posted by IGOTACUMMINS View Post
    What trans is in your 2014?


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    68RFE.

    The C&C is the Aisin.


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    Basic Member easttxram's Avatar

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    2018 RAM 4500 Cummins 6.7L Throttle Response?

    What’s funny is that the Aisin has weird low-speed shifts, and the 68RFE is weird on the high-speed shifts.

    The Aisin is the 1-2, 2-3, and the 68RFE is the 4-5, 5-6.

    If they could combine the best of both-they’d have a bulletproof transmission.

    That’d be too easy, though.


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  13. Top Of Page | #7
    WE WILL STAND! IGOTACUMMINS's Avatar

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    2018 RAM 4500 Cummins 6.7L Throttle Response?

    Quote Originally Posted by easttxram View Post
    68RFE.

    The C&C is the Aisin.

    Sent from my iPad using Tapatalk
    The issue is the Aisin hasn't been tuned yet.


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    No Vacancy Power247's Avatar

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    2018 RAM 4500 Cummins 6.7L Throttle Response?

    Quote Originally Posted by IGOTACUMMINS View Post
    He's already tuned by DRD, but the Aisin trans is the issue.

    We bet his 14 has the 68RFE.


    *Ask about becoming a Lifetime Platinum Member Today*
    Ahh, my bad.

    Greg
    2012 | RAM 2500 | CCSB | MM3 tuned by Double R Diesel
    2016 | Heartland Pioneer | DS310

    Greg
    2019 | RAM 2500 | CCSB | 6.4 HEMI

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  17. Top Of Page | #9
    Basic Member JustinJames's Avatar

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    2018 RAM 4500 Cummins 6.7L Throttle Response?

    I have a 3500 C&C truck.

    Granted, it's all stock, but the Aisin trans does that.

    Mine is terrible on an uphill stop-and-go situation; very clunky shifting, but get it on the highway, and its perfect also; although no one has cracked the TCM tuning, there's a trans shop out west that I have been following for a few years now.

    His R&D truck that has the Aisin trans seems to have solved the shifting issues by modifying the valve body and some internals.

    Look for Randy.

    Good luck!


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  19. Top Of Page | #10

    2018 RAM 4500 Cummins 6.7L Throttle Response?

    What tune are you running on the 4500?


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