2ND Gear Slips or Shifts From 1ST to 3RD Gear (Double-Shift)

CAUSE /REMEDY:
1. Remove B1 piston, check lip seal and replace if necessary.
2. Check O-ring of B1 reaction valve Rv1.
3. Check freedom of movement of valve body command valve 1-2 (17) and control valve B1 (38) (for illustration, see Location of Components). Location of Components