I have a 2014 6.7 and after installing a H&S DPF Delete Tune and 35's, I noticed that the transmission has some "touchy" spots. It's mostly in 1st and 2nd when going slow thru a parking lot or turning on a street. When I let off the pedal and then back on, it seems "jumpy". It feels like I'm giving it more pedal than I really am. I have played with the different tunes loaded in my XRT Pro and also turned the trans tune on and off, and it feels the same. I had a 2010 6.4 with a H&S tune and it drove perfect. Has anybody experienced this? Will a custom tune smooth this out?
2014 H&S Tune Drivability ?
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zporta
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Give it time, it will learn your driving style over time and smooth out
dsmracing1
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That seems to be a trait with the H&S tuning though as I discovered with my 14. I noticed there isn't a very smooth transition at low speeds through parking lots etc and it tends to go from a dead idle to about 1200 rpm and wanting to take off. My Gearhead tuning eliminated that problem for me..
Biggpigg4x4
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×2 for gearhead eliminating the issue for my 14
I have a '14 also and had been wondering if it was just my truck. It's annoying as hell "romping" through a parking lot. Unfortunately mine does it on H&S and gearhead tunes as well.
Sterling6.7
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Same story. Go Gearhead and that solves most all the issues. I still have a some minor shifting issues on my '13, but only when cold. Night and day difference with Gearhead.
