Excessive Shift Shock When Changing Range

1. Fluid level too low or fluid contaminated.
2. Incorrectly adjusted selector lever.
3. Incorrectly adjusted throttle cable.
4. Malfunctioning control valve(s).
5. Defective accumulator(s).
6. Defective forward clutch.
7. Defective coasting clutch.
8. Defective 3-4 clutch.
9. Defective 2-4 brake and/or servo.
10. Defective low and reverse brake.
11. Defective one way clutch 1.