2019 F150 Powerstroke Transmission issues

[rrenneka]

Any help would be greatly appreciated. I bought a 2019 F150 Diesel and on my way home from the dealer( Gilbert Ford in Okeechobee FL), the truck threw a wrench code after driving less than 10 miles. I live about 80 miles from the dealership and I drove up there because they had the truck on the lot that I wanted. I called the salesman and told him the issue and he told me to go ahead and drive it that it may have a few little glitches early on as it learns my driving style. I accepted that and drove home. By the time I got home, the check engine light was also on. I parked it for the night and left it sit in the driveway. The next day, I started it up and drove around the block. All the lights were out and everything seemed fine. I though this was great. Maybe it went through an update or something and now its all good. A few days later I took off to my sons house about 2 hours from me. The truck threw the wrench code after I drove about 10 miles. I continued driving. By the time I got to my sons house, it had the wrench, a wrench with a couple gears, and the check engine light all illuminated. It ran fine the whole way with the exception of the hard shift when it goes into reduced power mode. I called the dealership and of course, the service department was closed because it was Saturday. My son has a scanner and we hooked it up to the truck to read the code and the only code it had was P0960 Solenoid A malfunction. I called the dealer on Monday and ended up taking it there for them to work on it. It has been there now for 7 days. I spoke to the shop foreman today and he told me they have a transmission control module on order for the truck but it is currently on back-order. I told him the code it was showing was for a solenoid inside the transmission. I dont think the TCM will fix the problem especially because it doesn't throw codes until you have driven it for about 10 miles and it is up to temperature. He told me they had issues with my truck before I purchased it. It threw the same code and they replaced the "A" solenoid and even the wiring harness in the transmission. The ohmed everything and it all showed ok. They drove it and thought it was fixed. But, of coarse, its not.  Does anyone have any ideas on this thing? It appears the dealership is kind of struggling and Im loosing faith. I haven't heard any bad things about the 10 speed with the diesel.

I need to clarify that I dont think the dealership is incompetent. I think they are doing a fantastic job trying to fix my issues. I really like all the people at Gilbert Ford. I am just hoping that maybe someone else experienced the same thing and I can give them a heads up with a possible fix. 

Edited December 2, 2019 by rrenneka

[rrenneka]

Update, 

After waiting another week, the TCM finally arrived at the dealership. Mechanic installed and......................it did NOT fix the problem. Is anyone surprised?  Not me. 

Now, please comment on what may be the problem. The dealership told me to call back on Monday. That will be day 14. 

[YT90SC]

Intermittent electrical gremlins suck. P0960 is an electrical failure in the LPC solenoid circuit. There are two harnesses to the LPC inside the 10R80. You said they replaced one. Did they replace them both? Did they check pin fitment and LOAD test the wiring between the solenoid and the TCM. A DVOM won't cut it here. Also, check power and ground to the TCM as an issue with power or ground can cause oddball issues.  

 

I wouldn't be too upset with them being wrong with the TCM though. They've definitely not been trouble free with the 10 speed.    

Edited December 7, 2019 by YT90SC

[rrenneka]

Thank you very much. Im trying real hard to keep from getting too upset. I bought the truck and had it for 1 week and its been in the dealership service department for 2 weeks. I will definitly pass this information on. I know a lot of you guys are in the plants where these things are built. I spent 20 years in the Indianapolis plant before they decided to make it a Visteon plant and then close it.

[rrenneka]

Update:

My truck was in the dealership service department for 26 days straight. The final resolution was as follows: replaced valve body in transmission, both internal wiring harnesses, and the PCM module. I drove it home today and it ran very well. Been a bit frustrating to say the least after buying a new truck and waiting that long until it got fixed. Hopefully, that is the last I see of the dealership service department for a long time. 

During this time, 2 cases were opened with Ford Service concerning this truck. The first was opened because the dealership got the PCM and had to wait almost a week for Ford to provide a up to date program for it. The second one was opened a few days after the PCM module was installed and didn't fix the problem. That case resulted in the valve body and wiring harnesses being replaced. We will see how things go from here. So shotgun troubleshooting prevailed again.  Replace enough parts and you will eventually fix the problem. You just never really figure out what the original problem actually was cause by.