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Attention: TDR Forum Junkies
To the point: Click this link and check out the Front Page News story(ies) where we are tracking the introduction of the 2025 Ram HD trucks.

Thanks, TDR Staff
  1. J

    48RE Transmission slipping 1st gear and 2nd gear

    When hook up manual gauges do I need to drive on road and get truck to slip while watching gauges? Or is there a test procedure like psi at idle in P, in R , manual 1 etc etc etc? I will perform test both cold and hot and get readings. Just need to know the procedure.
  2. J

    48RE Transmission slipping 1st gear and 2nd gear

    Should my next step be changing the transducer again? (Already replaced last week attempting to remedy problem) Is there any grounds related to the transducer that I should check and clean? Anything else that can affect the transducer? Is the valve body ruled out at this point because...
  3. J

    48RE Transmission slipping 1st gear and 2nd gear

    I tested again in manual 2nd and truck holds fine under even very heavy acceleration. So I guess servo is ok. I changed ttva motor with one off of friends truck and went for a 45 minute test drive. I thought the problem may have been solved. Truck shifted normal under light and heavy...
  4. J

    48RE Transmission slipping 1st gear and 2nd gear

    It has held in manual 2nd during all of my testing including yesterday. But I will test drive again tomorrow to verify. I will try swapping the TTVA motor and see if that changes anything. As far as gauges go do I have to use manual gauges? I think I can monitor gov pressure actual and desired...
  5. J

    48RE Transmission slipping 1st gear and 2nd gear

    Thanks for the reply Cerberusiam. I forgot to mention in my original post that I also installed a new output shaft speed sensor in an attempt to fix this problem with no luck. Under moderate throttle the 1-2 shift issue is less noticable, the best I can describe it is that you cant feel the...
  6. J

    48RE Transmission slipping 1st gear and 2nd gear

    Hi, I have a transmission issue with my 2005 ram 2500 5.9 diesel automatic 48re 2x4 truck with 200k. Got the truck used and don't know if trans is original or not. I have done a lot of reading on this forum and have not found an issue exactly like mine. I have noticed Cerberusiam seems to be...
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