Harsh and/or Delayed 2-3 Upshift

HARSH AND/OR DELAYED 2-3 UPSHIFT
1. Incorrect engine performance.
2. Incorrectly adjusted, sticking, or damaged throttle linkage.
3. Plugged or missing 2-3 accumulator apply passage.
4. Cut or worn 2-3 accumulator piston seals.
5. Damaged 2-3 accumulator.
6. Valve body bolts improperly torqued.
7. Valve body dirty.
8. Sticking 2-3 capacity modulator valve.
9. Bent sticking or leaking vacuum diaphragm or TV control rod.