Trans am Trasmission trouble

I have a 95 LT1 trans am with an automatic transmission and tonight when i was driving home leaving a stop sign it shifted into second no problem and then wouldn't shift out of second into third, i tryed shifting it manualy but it just stays in second. Has anyone had this problem befor or dose anyone know what it could be?

Could be any number of things. Ranging from low tranny fluid levels to a dead solenoid. Your best bet on diagnosing tranny problems is taking it to a professional

Yeah my father is a master tech at Carrol south shore GM so ive got plenty of help, just thought id see if anyone had herd or this problem.