NHTSA Complaint #11519559 — 2018 FORD F-150

Engine rattle on deceleration is a known issue on 5.0 V8. Vehicle was brought in to a dealer in May of 2022 who was able to replicate the issue. Ford has a "remedy" in form of TSB 18-2354 which was performed by a dealer. Rattle noise was still present immediately afterwards and noted by tech performing the work but was deemed normal operation. A year later now in April 2023 I brought the truck back to Ford dealer with same loud rattle on deceleration noise and once again it was looked at and once again it was deemed normal operation. How can a loud rattle noise from engine once deemed worthy of TSB fix and not fixed by the TSB now be deemed normal operation? I do not believe and refuse to accept that rattling engine on deceleration is a normal operation, especially since not all 5.0 V8 engines do it. If it's normal all engines would exhibit same operation characteristics. Another issue is the 10R80 transmission. It's starting to surge from 2nd and then slam into 4th gear under very little acceleration throttle input. And just recently it surprised me when it started to occasionally slam down into 1st when stopping at a stop sign or traffic light. It moves the truck forward increasing it's stopping distance. It feels like someone hit the back of the vehicle. Brakes are good.The problem to me is that issues are happening with transmission but it is not with every shift or every time you drive the vehicle so it is not easy for me or for dealers to replicate when they drive the vehicle so things are deemed normal operation when in fact for us that drive day to day we know what it feels like when it runs like it should and when it isn't. The concern for me is that these issues will continue and will cause an even bigger issue or catastrophic failure down the road once off course vehicle is out of it's warranty period and then it may most likely be deemed a failure of component where symptoms leading to that failure today are supposedly being deemed as normal operation.