i have a 08 2500 6.0 with the 6speed tap shift.thr truck is dead from 1to4000 rpm then it takes off.does any one have this issue and will atune fix it.i live in houston if there is a tuner by me i will like to get it tuned so pm me.i dont get on here alot.

 

i've been catching hell with tuning the 6l80e, one of my customers has the same truck and it doesn't seem to respond at all to changing the tune. what kinda fuel mileage you getting? his is a ext. cab 4x4, all stock except for 285/75-16's and tuning, and its only getting 13-14mpg.

 

mine is a regcab 2wd allstock when i first bought it it would blow my 08 5.3 tuned crewcab away now this thing drives like i am always towiing something lost a ton of power and speed i am getting about 15-16mpg on the hiway in town i only watch the gauge likes it the speedo cause all it does is drop lol.but its ok on the hwy..i wanna make this thing a sleeper i have a n20 kit waiting to go on it but what to get it figured out first.

 

A tune can work wonders on the newer trucks. The deal where it is dead until 4000 rpm is totally in the computer. A good tune will make the truck TOTALLY different!