Job of the 2-3 Accumulator?

  • Sponsors (?)

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