2016 C7 Z06 with a 2019 transmission HELP
Hi all, i have a 2016 z06 A8. Transmission was having some loss of acceleration, slipping etc. so we decided to install a brand new 2019 GM Z06 transmission part #19433321. filled with correct fluids, etc
Had the techs do the fast relearn and reset adapts-passed successfully, but when we test drove it
- 1st to 2nd - ok
2nd to 3rd - a little sloppy
3rd to 4th is aggressive, and once in 4th- the rpms just flare like I'm in neutral, it'll bang into gear like i got rear-ended.
It will then downshift back to 3rd. I cant even get to 5th,6th,7th,8th
Does having a 2016 z06 with that year T87 TCM(2016), need to be updated to a 2019 T87A TCM? Any help would be appreciated!