While launching my boat backing down the ramp in reverse the truck started to like bounce. I shifted to neutral and it stopped. Wow that was weird. Ok next weekend the same thing happened. Also leaving stop lights there is a light clunk like U Joints but only have 23000 miles and U Joints are good. Seems like the torque converter is unlocking at a stop. Don't know whats going on the boat ramp. These things never happened since new. Anyone heard of issues on these transmissions?
Thanks
Hi Tinsey,
Do you know if your TCM software is up-to-date? I found a TSB that involves reprogramming of the Transmission Control Module (TCM) with new software.
TSB NUMBER: 21-011-14
GROUP: Transmission and Transfer Case
DATE: April 04, 2014
SUBJECT: Flash: Improved Medium to Heavy Throttle Downshift Response
OVERVIEW: This bulletin involves flash reprogramming of the Transmission Control Module (TCM) with new software.
MODELS:
2014 DS Ram 1500
NOTE: This bulletin applies to vehicles built before January 27, 2014 (MDH 0127XX) equipped with a 5.7L engine (Sales Codes EZH) equipped with the 8HP70 8-Speed automatic transmission (Sales Code DFD).
SYMPTOM/CONDITION: Customers may indicate that the vehicle does not downshift quick enough under medium to heavy throttle.
