I have a 95 Z28 with a 4L60E. Just put a 3000 TCI stall in it. At wide open throttle it will go to about 5200rpm and then free rev until it hits the rev limiter a few times then shift. If i let out just before 5000rpm it will shift ok. What happened? And how can i fix it? Have a trans cooler and fluid is fine!!!

 

I'm having a simliar issue with a brand new rebuild. Hope someone can shed light on it.

Regards,
G

 

it sounds as if the detent cable is too tight or your throttle valve is sticking. you may want to try popping the governer out and cleaning it. The last time i had one that wouldn't shift untill i let out of it, it was the govener...

 

The 1995's were OBD1's, and to resolve this, talk to Ed Wright about this problem.