Mine does the bang when you give it part throttle and completely let off around 20-30 mph. It does the shift and BANG! I do have the latest 10-speed TSB applied. I'm sure if Ford thought it was an issue that could've been fixed with the PCM flash, it would've been addressed. This has me a little worried that it's a hardware issue- historically Ford makes us live with it until the issue is no longer on their dime.

 

I was under the impression there is a TSB on this now - and a software patch for this.

curious question is this the only time you experience it during your day? If so roughly what is the outside air temp?

 

Huh, my 2011 6 speed did this bad. Same symptoms. It was one of the things that bothered me most about the truck, My 2018 10 speed hasn't yet and almost at 12,000 miles.

Mike

 

Mine did that at first for maybe the first 8 or 9 thousand miles. Seems to have gone away now. Although I get a late shift into 2nd or 3rd sometimes when cold and coasting to a stop from slow speed. Basically I'm pulling out of the parking lot from work, get out of first and am coming to a stop sign, coasting or decelerating, and it goes into either 2nd or 3rd late. It shouldn't be shifting up at that point. Doesn't do it when the truck is warmed up.

 

Mine doesn't on upshifts, but I do notice some harsh downshifts. It's not really a bang, but it is certainly not smooth.

 

I have an '18 with 5.0 and it doesn't do it at all but I'm out of town for work right now and renting an '18 5.0 and it does it from time to time. It caught me off guard the first time. As soon as I shift it into drive, there's a pretty significant 'clunk' in the tranny.

 

My '18 usually/normally shifts from 1st to 3rd but today it went 1-2-3 and was somewhat on the hard side compared to what is normal for this truck. Only 1900 miles on it so far.

 

2018 Owner here, smooth as butter. No issues so far.

 

Mine hasn't done that. I did notice that I've never actually seen the truck go into second gear from first. I always goes 1,3,4,5... Everything is smooth and fast though.