I drive a 2010 with 80,000 mile on it. i don't drive it fast. I where i work the parking lot is off a main road and sometimes it a drag race to leave. when i leave it takes off ok but then it act like it doesn't want to shift or the turbo doesn't want to fully kick in. The truck act confused on what to do. if i let off the pedal then ease back in it it dose fine. I have let the truck warm up before going and still the same results. This is my first super duty and I'm the original owner of the truck. thanks for the help.

 

Just for the heck of it, turn off the stability control/advancetrac and see if that changes anything (have to turn it off each time you start the engine).

 

My truck doesn't have stability control. but thanks I'm trying to figure it without buying a programmer

 

Have you had it checked for codes you can have codes even with no check engine light you need you diag the truck properly not throw a tuner on it putting a tuner on a truck that's not behaving it's self to begin with is just going to cause you more problems. You don't say wether it's always done this since new since your the orginal owner or it just started. There is also a 6.4 forum here in the diesel section and I'm sure some guys over there are very fimliar with the in and outs of the 6.4 and can help you diag it right.

 

ok thanks for the help i will ask in that section.

 

hows the air filter

 

that was my first thought. i changes it and it is still doing it.