i will i know if have a bad torque converter.i 93 z28 camaro with an auto tranny. now it will shift to first gear an then hold in that gear. the rpm go up an then it jumps or buck like. also when im completely stop an try to take of it act as if the rear tires are stuck and would released with the half amount of throttle. when the car is in neutral or park it has a high pitch sound and rpm are a little higher. is it time for another rebuild. i just had a rebuild on the tranny. a few month ago.