Unplug the ABS and your truck won't know what your tires are doing

 

Others here are correct, Sport Mode in the SuperDuty only affects traction control - it lets you spin the tires a bit. To me, it seems to only interfere above a certain speed threshold or if a large steering angle input is detected with a small difference between front and rear tire speed. That is - if you want to slip the tires from a stop sign, it will let you. If you start slipping while at speed, or while trying to steer moderately at speed, it will still interfere to keep you out of a tree or light pole. It has some limited off road use in very specific situations where tire speed is preferable to traction, but in most of these cases you'd be better served by low range anyways. It can be very useful in situations where you are moving between higher speeds and more challenging traction areas such as you might see around a ranch without having to stop and shift all the time.

In the F150, however, it also affects throttle input and shift points. It takes the modern transmission from nervous, skittish, insufferable fuel nanny to properly functioning automobile. I test drove an F150 with the 10 speed and I absolutely hated everything about the way it responded, shifted, and drove. I commented to the sales guy how terrible and crippling the normal setting was, and put it into sport mode to see if the experience could be salvaged. It was a totally different vehicle. It did what I told it, when I told it, and did it FAST. It was almost perfect. If you are ever killing time at a Ford dealer, take a 2.7 out and put on sport mode. If they just made that the standard setting, or allowed it to be persistently enabled, I would be they would sell 30% more trucks. It was like driving your old TH400 with a mild shift kit again, a truly rewarding experience.

Thankfully, the SuperDuty transmissions don't suffer nearly as badly from the horribleness of poor transmission programming, so Sport Mode doesn't seem to affect shift points at all like tow/haul does. The only annoying spot I've found there is the hesitance to downshift to 3rd at about the 35-45 mph range when applying throttle. There is a large dead pedal spot there, that is gone in tow/haul. Other than that, I have very few complaints about the transmission mapping in the SD.

 

I have the same problem, what settings did you revert back to factory?

 

Did you write down the original settings before you changed it? If so, just change it back...that's all I did.

I have since put the ABS fuse under the hood on an upfitter switch. I can 100% fully disable traction control and ABS with the flip of a switch now.

 

By shutting off the abs fuse with uplifter switch does it hurt the transmission? Because isn’t the transmission sensing the speed for traction control and is what kicks it back in at 35 mph?