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6T70 Transmission Shift

6K views 4 replies 5 participants last post by  kan 
#1 ·
Does anyone else have a noticeable transmission shift delay when accelerating?. I believe it's 2-3

Thanks
 
#2 ·
Yes, and there are existing threads about it.
I think it's a combination of possibly 6/4 cylinder switching, but more so shifting 2-4 for fuel economy. I find it only happens under light throttle and/or low RPM shift.
My manual tranny Z06, in stock form, would force a 1-4 shift under certain conditions (low throttle, low RPM shift...).
Makes sense to me.
 
#5 ·
I had started a Thread few years back for similar issue with my 2017 Acadia with 3.6 V6 and it has 6 speed tranny.
I had thought that when gears shift from 2-3 gears it holds RPMs too long which feels weird. This usually happen when starting from a stop and slowly accelerating.
But now I feel issue is (like few mentioned above) its shifting directly from 2 to 4th gear causing RPMs to rapidly drop, giving that freewheeling feeling.
I never got any concrete answers from anyone. Also I never took it up with dealership and now my vehicle is out of warranty , so not worth the hassle.

When in Sport mode, I believe this issue is not seen. Probably it doesn’t skip any gears.
 
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