10 spd reflash

[Turbo_lander]

So I know some have harsh shifting issues with the 10spd and I am as well however my harsh shifting comes on after using 4wd modes. In order for the harsh shifting to go away I have to have the truck reflashed and the shifting becomes smooth again. For awhile I was having to take it to Ford for the reflash but I have swithced over to a tune. Truck shifts amazing but as soon as I use 4H or 4L (not 4A) it starts shifting like crap until I reflash it.

Is this mechanical issue or a problem with adaptive learning?

 

[FordTechOne]

Are you using 4H or 4L on a smooth surface such as pavement or packed dirt?

 

[buyfire]

Weird. I had mine reflashed over a year ago (I think). No recurrence of harsh shifts at all.

 

[Turbo_lander]

Are you using 4H or 4L on a smooth surface such as pavement or packed dirt?

Beach Sand and Mud 4H. Rarely using 4L

 

[FordTechOne]

Beach Sand and Mud 4H. Rarely using 4L

Strange. Using 4WD should have no affect on how the transmission shifts; they’re even controlled by two separate modules. The only thing I can think of is something binding in the T-case when it’s locked in 4WD, causing the transmission to increase line pressure.

 

[Turbo_lander]

Strange. Using 4WD should have no affect on how the transmission shifts; they’re even controlled by two separate modules. The only thing I can think of is something binding in the T-case when it’s locked in 4WD, causing the transmission to increase line pressure.

I was unaware that they use two seperate modules. The Ford Dealer says that anytime you use a 4wd that is has to re-learn "adaptive" driving habits so it will be rough for few days. But for me it stay rough. I've gone as long as 3 weeks to give it time to re-learn.

I will probably bring it in and have Ford look at it and tell them about the T case and see if they can figure it out.