Harsh or Delayed 2-3 Upshift

HARSH OR DELAYED 2-3 UPSHIFT
1. Poor engine performance.
2. Engine vacuum leak.
3. Kickdown system damaged.
4. Damaged or worn intermediate servo release and reverse/high clutch piston check ball.
5. Valve body bolts loose or too tight.
6. Sticking or dirty valve body.
7. Vacuum diaphragm bent, sticking, or leaking.
8. Throttle valve sticking.