Had a great convo with a Ford tech last week.
He said these 10 spd trans learn and sometimes learn wrong or learn to a day of spirited driving. Next time you drive it normally, it wants to shift hard as if it is being driven hard. In the older trans, like 6 speed, you could unhook battery and it would relearn. The 10 spd requires them to clear via odbc port for reset.
Additionally, he said Ford had a service procedure, not yet a service bulletin, in which they have found the actuators in the 10 spd are too tight causing unusual shifts sometimes ( mine bounced off rev limiter once and wouldn't shift). He said they put it on the lift, hook up computer, and the procedure runs the trans through the gears for about 30 mins to adjust to the actuators. They have done two 2020 and one 2021. Mine will be the second 2021 they have done, tomorrow. They see this a lot of the F150. He said to drive it normally, no wot or spirited driving for about 500-1000 miles afterwards.
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