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  1. 48RE TTVA issues | Cummins Diesel Forum

    Jul 18, 2023 · Hey y’all, I am having some issues with my transmission shifting. I was towing on the highway the other day, goin about 70, 5 hours into my trip, and my check engine light …

  2. 48re throttle valve actuator | Cummins Diesel Forum

    Aug 22, 2014 · My tranny has been shifting erratic and slips from 2-3 and 3-4 lately I noticed today with the key on but not started the trucks transmission throttle valve actuator (TTVA) is …

  3. Simple Guide to Upgrading your Transmission!!! | Cummins Diesel …

    May 10, 2011 · Simple Guide to Upgrading your 48re Transmission!!! This post is to help Anyone new to Upgrading their transmission, 48RE. Any Questions About Specifics on a company, …

  4. 05 48RE governor psi low? | Cummins Diesel Forum

    May 15, 2015 · TVA was replaced about a year ago seems to work. but If I remember before I replaced this, trans was fine other then a code for the tva so I replaced It. did the 30 sec …

  5. P1749 code | Cummins Diesel Forum

    Jun 1, 2010 · Checked the DTC list and its not listed...shows up on Smarty as "Transmission Throttle valve position sensor curcuit low"....and ideas??? I recently installed a Shift Enhanser, …

  6. Need New OBD2 Port with Pigtail, where to buy?

    Oct 23, 2018 · My OBD2 port is coming apart, so I need a new one. I have looked all over the internet, find many of them for sale, especially on Ebay, but none specifies it is for the Dodge …

  7. Truck won't go over 70mph | Cummins Diesel Forum

    Feb 15, 2019 · I have an 06 with EFI live. I just had the TTVA motor changed now the truck won't go over 70mph. When I lay into the throttle it'll build boost and right before it launches it just …