Re: Have the 2014+ 5.7's shifting improved with latest flash?
I had issues, but under rare circumstances. First was when driving at 35 and enter a school zone at 25 the transmission didn't want to downshift and caused a slight fluttering/shuttering in eco mode. Once it decided to downshift, it was fine. Had the first tsb flash back in may or june and it seemed to fix it.
The second occurrence was worse, this was after the first update was done. Driving at about 65mph on a slight uphill in traffic I was feathering the throttle to maintain speed it shuttered and a hard downshift happened which resulted in a thump in the transmission. It reacted fine for the next month and when I went in for an oil change, I mentioned it so they flashed it with the most recent update. Don't know if it changed anything yet. Still feels fine, so whatever, I guess.