Good morning everyone! I glanced through most of the comments on here.. my experience the past month with my 2019 Ford Expedition Limited with a HDTTP @ 38000 miles (powertrain warranty was in effect) during repair was a COMPLETE TRANSMISSION REPLACEMENT!!!
My experience prior to repair was that temp was getting to 228 F at normal driving even at 45 degree ambient temperatures. The defective transmission would do the nose dive sensation when going from gear 3 to gear 5 (switching to a different clutch packs). And it basically would grind from 1st gear to 3rd. No DTC codes were thrown. My local dealer, Paul Miller Ford in Lexington, KY, drove it and decided that "it is bad" and also noticed that the transfer case was also whining (pitted gears). They scheduled me for a drop off two days later; they gave me a 2022 F150 XLT (which I was pretty happy about) and they told me to expect at least two weeks for repairs... Well, 6 days went by and they slapped on a brand spanking new transmission.
Overall, I was pretty happy with my experience and that that was the ultimate repair that I wouldve expected. SA said that it was close to $13,000 in repairs that was covered under warranty. If they hadn't done it correctly, I was ready to go back to a Mazda 6speed automatic vehicle which is the most reliable transmission out there.
So far so good with the new transmission. It is smooth like the 2022 F150 I drove. I did notice though the new gen f150s do not skip gears. It goes through each gear sequentially. Most like to preserve the clutches and to lessen the software indecisiveness. Livernois Motorsports offer a transmission tuner that would reprogram the transmission to go through all gears sequentially.