Oddly I am having the same issue with my 2001 Excursion. I don't recall the box code at the moment, but I recall the software running a quick update, then I cleared and reloaded the files on the chip. I went from 10 down to 5 of my favorites.
The tune I ran daily, the 140 Extreme, no longer shifts properly, it flares going into 4th gear, as if unlocking in 3rd, causing a flare while shifting to 4th, and then relocking. I've noticed the relock or shift into 4th, whichever it actually is, is very slow. Almost like slowing letting the clutch out in a manual transmission.
I could picture the clutch material just cooking under immense temps, so I removed that tune and only run the 80hp DD now, which seems to shift better, but still not as confidently as I'd like.
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Mon, September 13th, 2021, 05:45 PM
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