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  1. J

    2018 Ram 6.4l Hemi Towing Issues

    Other than the issue on steeper hills the truck pulls fine with plenty of power. I am not certain why Ram designed a transmission to go into a safety mode that falls between 1st and 2nd gear basically reducing the power of the motor on a truck that is designed for towing. Well either way I...
  2. J

    2018 Ram 6.4l Hemi Towing Issues

    I appreciate everyone’s replies and your helpful notes. As for the reason the mechanic told me, I am not certain if it was a Can’t Figure it out or Don’t Care answer. I guess I will either just have to live with it or get a newer one with the 8 speed.
  3. J

    2018 Ram 6.4l Hemi Towing Issues

    The loaded weight of the trailer was around 9800 lbs which is still under the rated amount. The mechanic also said the weight of the trailer is not an issue. As for the Cummins, he said because it makes it torque at a lower rpm range the transmission does not have to shift down to 2nd or 1st...
  4. J

    2018 Ram 6.4l Hemi Towing Issues

    Yes he said the transmission is incompatible as not designed to handle the top end power of gas motor. Why would you not recommend a custom transmission tune? Do you think it could do damage?
  5. J

    2018 Ram 6.4l Hemi Towing Issues

    Well I took my truck to the dealer yesterday to be checked out and was told there was nothing wrong. After further discussing what I was experiencing with the service manager and a head mechanic. The mechanic, who had over 30 years experience basically told me the 6 speed transmission is the...
  6. J

    2018 Ram 6.4l Hemi Towing Issues

    Thanks and hopefully they will find an issue
  7. J

    2018 Ram 6.4l Hemi Towing Issues

    Thank you very much and will do. Hopefully they can figure out what is wrong.
  8. J

    2018 Ram 6.4l Hemi Towing Issues

    I have an appointment scheduled for next Friday. I am hoping it is something with the programming on the transmission when it was replaced. I will give an update after the appointment.
  9. J

    2018 Ram 6.4l Hemi Towing Issues

    Not yet as I have an appointment scheduled. Will let you know.
  10. J

    2018 Ram 6.4l Hemi Towing Issues

    I am actually starting out over 4,000 rpms when it drops into 1st gear and then the RPMs drop way down between 2 to 3000 rpms and power goes way down.
  11. J

    2018 Ram 6.4l Hemi Towing Issues

    I appreciate the advise. As I mentioned in one of my earlier posts, my driveway is pretty steep and when I approach I manually shift to 1st gear but still have a problem with power. It seems to start off fine with higher RPM’s then just seems to die out to appoint where the RPM’s drop way down
  12. J

    2018 Ram 6.4l Hemi Towing Issues

    I appreciate that but I live just outside Rochester NY
  13. J

    2018 Ram 6.4l Hemi Towing Issues

    The hill was maybe 3 to 4 miles at the most. Plus I have the same issue coming up my driveway with the trailer which is a pretty steep grade but only about a 1000 ft.
  14. J

    2018 Ram 6.4l Hemi Towing Issues

    I have only had the truck for a few months. The engine oil was changed and a new transmission was put in the truck. I never thought of checking either as again I have only had for a few months.
  15. J

    2018 Ram 6.4l Hemi Towing Issues

    So it appears it must be something with the truck as there should be no issue pulling hills?
  16. J

    2018 Ram 6.4l Hemi Towing Issues

    I really don’t believe I was maxed out in trailer weight. The 5th wheel is just a little over 9000 lbs dry weight and the day I was towing my tanks and water were empty. So even with my normal stuff loaded in the storage bins I was no where near full capacity. I realize this is not a diesel...
  17. J

    2018 Ram 6.4l Hemi Towing Issues

    Basically this is what I experienced but I seemed to have more power and speed loss. As I mentioned my RPM’s dropped way down and even with my foot to the floor would not increase. This is very puzzling as I am not certain if it is a programming issue with the transmission or something else...
  18. J

    2018 Ram 6.4l Hemi Towing Issues

    To clarify, I never said I was at or near 6000 rpms. When I approached the grade, maybe 6% or so, I was in 4th gear. As I started up the hill, the truck shifted down to 3rd, then 2nd and about half way up shifted down 1st. As I originally stated once it shifted to 1st the rpms were up around...
  19. J

    2018 Ram 6.4l Hemi Towing Issues

    The transmission was replaced under warranty prior to me purchasing a few months ago. I am going to make an appointment with the dealer to have them check it out. Overall I am very happy with the truck other than the issues towing on steep grades. Do you think if everything checks out with...
  20. J

    2018 Ram 6.4l Hemi Towing Issues

    The truck is used, it only has 33k miles on it. Could the Catalytic Converter go bad this fast?
  21. J

    2018 Ram 6.4l Hemi Towing Issues

    Will do.
  22. J

    2018 Ram 6.4l Hemi Towing Issues

    So maybe it is just the way the truck is programmed from the factory as you seem to experience the same issue. I am wondering if this is something the dealer could reprogram or if a custom tune could change it?
  23. J

    2018 Ram 6.4l Hemi Towing Issues

    My vehicle has the integrated break controller. I have it set at 6.5. I am not certain if there is an issue as I don’t feel any drag from the trailer when driving flat roads or down hills. The issue seems to be happening only when towing, driving under normal conditions I have no problem with...
  24. J

    2018 Ram 6.4l Hemi Towing Issues

    I never had a CEL come on. Temps always seemed fine. I am just concerned as again mine will not rev in 1st gear but fine in 2nd. There has to be be some sort programming issue or transmission issue.
  25. J

    2018 Ram 6.4l Hemi Towing Issues

    Thanks again for everyone’s input. I am definitely going to make an appointment with the Dealer to have them see if they could diagnose the 1st gear issue and run the higher octane fuel. As for gearing I think I am going to hold off for now. I first noticed this issue shortly after I...

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