Failure to Change Gear From ``D4'' to ``D3''

1. Incorrect fluid level.
2. Faulty or misadjusted throttle sensor.
3. Faulty overrun clutch solenoid.
4. Faulty shift solenoid ``A.''
5. Faulty line pressure solenoid.
6. Faulty control valve assembly.
7. Faulty low and reverse brake.
8. Faulty overrun clutch.