Have you had shift TSB done?
Yes I have. It went in for this problem and rough downshifts. The truck was returned with the new flash that allegedly took care of both of these problems. Also had some trans sensor replaced.
The rough downshifts it did fix for sure. I thought initially the shift into Drive was better but it certainly either got bad again over time or wasn’t fixed in the first place and I imagined it being better.
I’m thinking it’s getting worse though. If it was like it is currently from the time I picked it back up, it would have been immediately noticeable, but I never thought twice about it back then...
I’d say 10% if the time it’s *maybe* passable, 80% of the time a passenger will say aloud “wtf was that,” and the final 10% worst of the days it literally lurches my truck forward a few inches (overcoming the braking force).
Obviously it needs to be taken in... just was hoping to get a feel if this was common or not. Or if anyone with a deeper mechanical knowledge than myself could help narrow what specific part of the drivetrain could be causing this.
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