Tow haul flashing on 6.0

[justa spoolin]

turned up my juice today up to level 5,got on her pretty good and tranny did something werid and came out of 5th and the tow haul indicator was flashing and would not shift back into 5th untill i stopped and shut off truck.did not log any codes.just wondering what happen thanks

[2005F250]

Welcome to my world. My truck does the same thing and the problem hasn't been fixed. I got some video's on youtube. The case is the torque conveter won't fully lock when it flashes. But my truck does this stock. And you need a Ford scanner to get TCM code's. Programmers only read ECM codes.

[DoubleDpsd]

think that means it goes into limp mode. that's edge for ya.

[justa spoolin]

good to know i was not the only one it acts like it goes into a limp mode.does your correct itself after you shut it off?

[2005F250]

Originally Posted by justa spoolin

good to know i was not the only one it acts like it goes into a limp mode.does your correct itself after you shut it off?

It does correct itself after shut off. Does your tranny surge at all like mine. Go here for video's.
Tranny problem on video

[justa spoolin]

no it doesnot surge i did hit some bumps think it might have to be in the speed sensor dept.

[2005F250]

Originally Posted by justa spoolin

no it doesnot surge i did hit some bumps think it might have to be in the speed sensor dept.

Good luck with that.

[justa spoolin]

thanks let u know how i make out