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10 Speed Automatic Issues
2021 Ford F-150
This problem may be covered under warranty. Ask your Ford dealer.
7.3
pretty bad- Typical Repair Cost:
- No data
- Average Mileage:
- 14,900 miles
- Total Complaints:
- 3 complaints
transmission problem
Helpful websites
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A D V E R T I S E M E N T S
Bought the truck used in June of 2023 with 17k miles on it, transmission shifted rough sometimes but not all the time, and it wasn’t terribly severe when it did. Resetting the adaptive learning tables whenever it started to misbehave would help smooth it out for a few thousand miles. I think I reset it a total of 3 times.
A couple months ago, around 32k miles, things quickly got worse. It started to shift much more rough between gears 1-5, and when downshifting from 10th gear after giving it a quick boost of throttle on the highway. It got so rough that it felt like I had just got rear-ended. In addition to that, a few times the truck would not go into 10th gear no matter what I tried (speeding up and slowing down, going heavy on the throttle and going light on the throttle, switching drive modes, trying to shift it manually). And a couple other times, the gear indicator would hunt between 4-1-4 and the truck felt bogged down and had no power.
Took it to the dealer and they condemned the transmission after trying to reset the adaptive learning tables and applying some TSB’s, it actually behaved worse afterwards. Dealer is replacing it under warranty at 34k miles. They admitted that they see a lot of 10-speeds with issues and repair a lot of them, but they usually stay fixed after they’ve been repaired. We shall see. I’m lucky that this happened under warranty, I’ve heard this is a $11,000 ordeal if outside of warranty.
Update from Oct 1, 2024: After having the truck back for about a month, the new transmission seems to be working very well. It will still occasionally have a funky/rough shift here and there, but even those aren't as harsh as the rough shifts from before. I think the occasional rough shift is actually normal based on the amount of adaptability and electronic components that go into making this transmission shift.
The specific failure of my old transmission according to the dealer was a defective CDF drum (very well-known design flaw) that inhibited proper fluid flow to all clutch packs, which allowed for an eventual failure of the B and E clutch pack control circuits. The new transmission assemblies have improved CDF drums with an updated design.
- Jack S., Allen, TX, US