Car won't start and dies periodically

[PlymouthBarracuda]

Sos, maybe somebody could help.

I left my camaro ss (2011, 6L80, L99) at transmission repair station to install TransGo zip kits (all of them) because transmission is kicking and shows hard shifts. Also by the way torque converter was disassembled and revised for a worn out spares.
After installation car is totally "dead". Accumulator voltage is OK, green light is lit on the indicator on inself.
After 30 minutes car started up normally and specialists drived it for checking transmission, reported that everything is OK.
When I came to take my car out, during normal driving I found extremely long delays from 2 shift to 3 shift. I returned back to the repair station and car won't alive again. When turning the key, nothing happens, dash board and gauges are not lit. In 30 minutes it alived again but when specialist inserted OBD2 device, dashboard died again and he could not connect with OBD2.

Could it be that long delays from 2 to 3 shifts is the consequence of the issue described above ?

Maybe you have any suggestions where to look for ?

[gtstorey]

So you have a dead battery?

Not sure why you think you needed a shift kit (zip?). Not sure that I remember anyone on here ever using one. Unless you have major horsepower adder, the the stock trans should have been able to handle it with a good tune unless it is just broke or wore out.

Have the transmission adepts be reset after the shift kit was installed?

[PlymouthBarracuda]

Originally Posted by gtstorey

So you have a dead battery?

Not sure why you think you needed a shift kit (zip?). Not sure that I remember anyone on here ever using one. Unless you have major horsepower adder, the the stock trans should have been able to handle it with a good tune unless it is just broke or wore out.

Have the transmission adepts be reset after the shift kit was installed?

Battery is good, it is not dead, I checked with another battery and electronics was dead in same way. I bought all transgo zip kits because transmission was kicking and randomly delays were observed. Also replaced separator plate to a revised one with +1 additional check ball. Oil pump and bushings were in fine condition so no works performed on them.
After installation they replaced all frictions and changed oil. They did adaptation reset and now I can feel extremely delays at 3, 4, 5 and 6 shifts. Also on agressive acceleration it does not shift to the 6 gear increasing rpm to 5500.

Is it normal condition after adaptation reset ? Service center suggests to update firmware if delays are not disappear in one week of driving.

They also found that one of the engine radiator cooling fans is inop, replaced motor and now car starts normally, but I dont believe that electronics was dead beacause of overheating... no ideas so far