My 2019 f150 transmission is shifting all messed up. I already had the solenoid pack replaced. I am experiencing lag shifts, hard shifts, and random weird things. Traveling at 55+ it will shift into 10 gear then the indicator will drop to 1 , no power then back to 10 or 9. A few times while in 10th I would come to a stop and the indicator never left 10 gear, when I started back up it took 30+ seconds for it to realize it should be in 1st gear. I have used forscan to clear the adaptive learning table, and it transmission functions better but then gets worse again. I get codes popping up when I am on the highway then which clear when i restart. I am thinking it is the TCM going bad I was thinking about replacing but it seems to be one of the few problems out there that no one has done a video on. Can anyone advise if TCM could be the problem, where it is located, and if replaced does a new one need any special programming?

 

I've had my fair share of tranny problems in my 19 and I've been back to the dealer several times for warranty work. They have done a reprogram, new valve body, new transmission, another valve body then some internal work. I would have to check the last work order from about a year ago to see what all they did. But it's starting to get clunky again and bump between gears. I just bought a Goose Tuned ECU and TCM tune and am currently working through the process for data logging and fine tuning. More to come.

 

thanks...it appears to me its a computet issue....i think tcm is messed up

 

This tranny is s***t !!!
I just got a 2020 F150 and also having some issues,. I did the basic clearing tables and turning OFF the adaptive learining. still testing but it's shifting much better now, I'd recommend turning the learning off completely. See if it helps, still once in a while you get some weird shifting. Not sure if'll keep this truck for long, I like everything else but this tranny issues were not a great way to start.

 

I turned off adaptive learning. Transmission seems to be better not great...but better, this leads me to believe the tcm is crapping out or connection some where is faulty...anyone know how to replace tcu

 

ok strike that transmission was worse...sat there in reading 5th gear at dead stop it was in neutral...pit itin nuetral manuel reverse... nothing... in middle of traffic. Shut of engine and restarted...all good again...wtf...has to be a computer issue....anyone have any thoughts

 

i've seen lots of videos about these 10 speeds being rebuilt and the issues they have. I've never seen one w/a TCM issue. the drum(aka trash can), o-ring issue, valve bodies etc. Id get it looked at. The guy in the video below is very knowledgeable and has lots of videos on these 10 speeds.