20Expy
Active Member
@manuelb There is a TSB (Technical Service Bulletin) from Ford for this issue which affected many Expeditions. Since you have a 2020 like mine with 1 year of powertrain warranty left, I think you should bring it in to the dealer before warranty expires. According to the TSB, they have to do a software reprogram first. If the problem is not resolved, they will have to replace the valve body. If the bad shifts are still not gone, they have to drop the transmission to replace the CDF drum (big job). All these service steps should be free, because you still have the powertrain warranty from Ford. Make sure to print out the TSB below and show it to the dealer as well. Good luck.