Trans. Slips When Start In 1ST or 2ND, or Will Not Move Forward

1. Shift valve B2 inoperable, replace shift valve housing if necessary.
2. Check brake band B2.
3. Check thrust pin of brake band B2.
4. If vehicle moves forward in position ``2'' but will not move in position ``3'' or ``D,'' one-way clutch may be slipping.