I have a 2021 and the transmission was replaced with a new transmission this year under warranty. The new transmission is much better and I got rid of the CDF drum issue.
I have had issues with my 2021 transmission where if I put it in reverse in the winter, the truck would start moving back and then stop moving. I either needed to rev it up and it would slam into gear at about 2100 rpm, or I would shift from reverse to neutral and back to reverse again and all...
Thanks for the suggestion to turn off the wifi. Like you, no updates since 9/23. I turned off my wifi in the truck yesterday and had a software update today.
34,300 Miles on my 2021 Truck
3.5L Liter Engine
Transmission Fluid changed?
No.
Issues Encountered:
Had reverse issues with transmission binding and stopped moving. Needed to rev engine high to move or switch from reverse to neutral and back to reverse to move.
Ford put in a new transmission...
There are two versions of the owners manual. I happened to look in the first version which did not have the same break-in info. I downloaded version 2 which has this info.
I did a log of tempurature, idle time, how many cycles I needed to shift from reverse to neutral to get the truck to move. Detailed logs definately helped.
It is in at the dealers today for the 3rd time. Auto hold is disabled and the parking brake is not on when this happens. Ford corporate has also been giving advice to the dealer on this so I suspect they would know if anything needed to be disabled in the settings.
There is nothing in the hitch receiver and no audible warnings or warning lights when this happens. The dealer has also been able to replicate this problem. If I step on the gas hard enough it seems to slam into gear. Seems to me that it is not fully engaging in reverse.
I have a 2021 F150 with a 3.5L engine which has strange transmission problems. The truck is parked in the driveway with a slight incline, front higher than rear. When I back up I am going downhill and the truck will easily roll downhill in if I put it in neutral. Parking brake and hill assist...