I have an 1994 camaro Z28 with an automatic transmission. When you drive normal it shifts fine and doesnt have any problems. But when you have your foot all the way in it, it won't shift up. It acts like it hits the rev limiter and it won't shift. I was told to replace the throttle position sensor and i did, but it did not work. What should I have done next?

 

tranny is on its way out. thats the earliest sign, mine did that for a month.. threw in a shift kit and killed it on the first pass lol. 6 months later i had a newly rebuilt trans.. ';..;' 8 months later im having a 6 spd put in... if u get urs rebuilt have it done right by a pro shop not locals.. =/