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dmac
Well-known member
Mine was built 4/22 and it was terrible until I reset my trans at 4k. Having this done this week for a permanent fix, while it's in for a powertrain rattle.
PBXL
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I have been one of those complaining about the shifting and my blend date was 4/8/2021... thanks for posting this!
F-150 Prius
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Thank you! I think this is what they did to my truck – not perfect, but an immediate and obvious improvement.Hi there. New to the boards. The harsh 1-3 upshifts/ poor gas electric transition has been bugging me. Ran across this recent TSB to fix the problem. Wanted to get this out there for those that are effected by this.
psambrose
Well-known member
Hopefully they will come up with a fix for 5.0's built in June. The 1-3 shift is driving me nuts. Passengers keep thinking we were rear-ended.
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Sentinel1201
Well-known member
I have noticed my shifting get noticeably clunkier - now at 12 k miles. Thank you for sharing this, hope this is the ticket.
Question - why cannot this be an over the air update? Second, the TSB is very ambiguous about the software upgrade, it doesn't list any software versions and talks more about resetting PCM. Anyone had this done and can attest it is a real software upgrade and not just a PCM reset?
Question - why cannot this be an over the air update? Second, the TSB is very ambiguous about the software upgrade, it doesn't list any software versions and talks more about resetting PCM. Anyone had this done and can attest it is a real software upgrade and not just a PCM reset?
150ish
Well-known member
Where did you get that information from? I need something to send to my dealer. I just got my truck back from them for these exact issues.
xtraman122
Well-known member
It specifically says “reprogram the PCM to the latest software”, so it doesn’t sound like just a reset to me. Wouldn’t make sense that there would be a certain cutoff date either if it was just a reset. They likely began shipping them with newer software by the date specified.
Good morning! Could you please send over a private message with your VIN? I would like to see what I can do to assist with these shifting issues your truck is experiencing.
Sentinel1201
Well-known member
I appreciate the offer, I PM'd you the VIN.
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dantheman
Well-known member
This is great news. The area dealerships wanted a minimum of 3 days to diagnose my hard shifting issue w/o a loaner to get to work. I will get them to try this and see if we can get it fixed.
dmac
Well-known member
I'm picking mine up from the shop tomorrow after having this done. It was shifting ok since I reset the trans tables a month ago, but before the reset, it was horrible to drive. This will hopefully make for a permanent fix.
Will let you guys know if it's any better than when I brought it in.
Will let you guys know if it's any better than when I brought it in.
Littlefield82
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How did you reset it?
Snakebitten
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He probably means he erased his adaptive tables, effectively "resetting" it to brand new with no adaptive values. It's like starting over from day 1.
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