The job of the acumulator is to damped shifts. So you dont get a really harsh shift. Thats it's fuction. Did you need more information than that? what are you trying to do?
It wouldn't shift into 3rd, I finally got it to shift briefly but was grinding, almost like it was in 2 gears. Just wondering if it could be the 2-3 accumultaor piston, or the 2-3 backout valve in the VB or the 2-3 accumulator in the VB....grrrrrrrr