Towed my 13k lb fiver for the first time after the cpm recall from the Sarnia On to Florida
After starting truck and climbing the first grade when the truck downshifts it hesitates and stutters and has no power.
After the hesitation and stutter on the first grade after starting the truck it then behaves fine on subsequent grades.
This pattern occurs every time I shut the truck off and restart.
I am hoping a ford tech may comment on this. This behavior did not happen before the reflash, the truck pulled hard every time with no stuttering. No CEL on dash readout.

 

Any loss of coolant and or white smoke?