Automatic Transmission/Transaxle: Testing and Inspection

Engine Won't Start In N & P Range

1. Ignition switch and starter motor.
2. Manual linkage.
3. Neutral switch and wiring.

Engine Starts In Other Ranges Than N & P Ranges

1. Manual linkage.
2. Neutral switch and wiring.

Excessive Shock On N To D Range Shift

1. Engine idling speed.
2. Vacuum diaphragm and piping.
3. Oil pressure.
4. Manual control valve.
5. Rear clutch.

Drive In 2, 1, And R Ranges But Not In D

1. Manual linkage.
2. Oil pressure.
3. Manual control valve.
4. One-way clutch in power train.

No Drive, Excessive Slip, Or Very Poor Acceleration In D, 2, Or 1 Range

1. Oil level.
2. Manual linkage.
3. Oil condition.
4. Oil pressure.
5. Manual control valve.
6. Transmission air check.
7. Engine tune up and brake inspection.
8. Rear clutch.
9. Leak from hydraulic passages.
10. Front clutch.

No Drive, Excessive Slip, Or Very Poor Acceleration In R Range

1. Oil level.
2. Manual linkage.
3. Oil pressure.
4. Oil condition.
5. Manual control valve.
6. Transmission air check.
7. Low and reverse brake.
8. Front clutch.
9. Rear clutch.
10. Leak from hydraulic passages.
11. Front clutch check ball.

No Drive

1. Oil level.
2. Manual linkage.
3. Oil pressure.
4. Oil condition.
5. Manual control valve.
6. Transmission air check.
7. Oil pump.
8. Leak from hydraulic passages.
9. Parking pawl.

Slipping

1. Oil level.
2. Manual linkage.
3. Oil pressure.
4. Oil condition.
5. Manual control valve.
6. Vacuum diaphragm and piping.
7. Transmission air check.
8. Oil pump.
9. Leak from hydraulic passages.

Drive In Neutral Position

1. Manual linkage.
2. Oil condition.
3. Manual control valve.
4. Rear clutch.

Shift Speed Too Low

1. Oil level.
2. Manual linkage.
3. Oil condition.
4. Oil pressure.
5. Engine stall speed.
6. Band servo.
7. Manual control valve.
8. Engine tune up and brake inspection.
9. Band brake.
10. Low and reverse brake.
11. Rear clutch.
12. Front clutch.
13. Oil pump.

Car Drags In R Range

1. Oil condition.
2. Transmission air check.
3. Band servo.
4. Rear clutch.
5. Band brake.
6. Parking pawl.

Excessive Creep

1. Engine idling speed.

No Creep

1. Oil level.
2. Manual linkage.
3. Engine idling speed.
4. Oil condition.
5. Manual control valve.
6. Oil pump.
7. Leak from hydraulic passages.
8. Rear clutch.
9. Front clutch.

No 1-2 Shift

1. Manual linkage.
2. Vacuum diaphragm and piping.
3. Downshift solenoid, kickdown switch and wiring.
4. Oil condition.
5. Manual control valve.
6. Governor valve.
7. Transmission air check.
8. Band servo.
9. Band brake.
10. Leak from hydraulic passages.

No 2-3 Shift

1. Manual linkage.
2. Vacuum diaphragm and piping.
3. Downshift solenoid, kickdown switch and wiring.
4. Oil condition.
5. Manual control valve.
6. Governor valve.
7. Transmission air check.
8. Band servo.
9. Front clutch.
10. Leak from hydraulic passages.
11. Front clutch check ball.

1-2 & 2-3 Shift Points Too High

1. Vacuum diaphragm and piping.
2. Downshift solenoid, kickdown switch and wiring.
3. Oil pressure.
4. Oil condition.
5. Manual control valve.
6. Governor valve.
7. Leak from hydraulic passages.

1-3 Shift, Skips 2

1. Oil condition.
2. Manual control valve.
3. Transmission air check.
4. Governor valve.
5. Front clutch.
6. Leak from hydraulic passages.

Harsh 1-2 Shift

1. Vacuum diaphragm and piping.
2. Engine stall speed.
3. Oil condition.
4. Manual control valve.
5. Band servo.
6. Band brake.

Harsh 2-3 Shift

1. Vacuum diaphragm and piping.
2. Oil pressure.
3. Manual control valve.
4. Transmission air check.
5. Band servo.
6. Front clutch.

Slipping 1-2 Shift

1. Oil level.
2. Manual linkage.
3. Vacuum diaphragm and piping.
4. Oil pressure.
5. Oil condition.
6. Manual control valve.
7. Transmission air check.
8. Band servo.
9. Band brake.
10. Leak from hydraulic passages.

Slipping 2-3 Shift

1. Oil level.
2. Manual linkage.
3. Vacuum diaphragm and piping.
4. Oil pressure.
5. Oil condition.
6. Manual control valve.
7. Transmission air check.
8. Band servo.
9. Front clutch.
10. Leak from hydraulic passages.
11. Front clutch check ball.

Car Drags On 1-2 Shift

1. Oil condition.
2. Manual control valve.
3. Low and reverse brake.
4. Front clutch.
5. One-way clutch in power train.

Car Drags On 2-3 Shift

1. Oil condition.
2. Band servo.
3. Manual control valve.
4. Band brake.

No 3-2 Downshift

1. Vacuum diaphragm and piping.
2. Oil condition.
3. Manual control valve.
4. Governor valve.
5. Transmission air check.
6. Band servo.
7. Front clutch.
8. Band brake.
9. Leak from hydraulic passages.

No 2-1 Or 3-1 Downshift

1. Vacuum diaphragm and piping.
2. Oil condition.
3. Manual control valve.
4. Governor valve.
5. Transmission air check.
6. Band servo.
7. Band brake.
8. One-way clutch in power train.

Shift Shock Felt When Accelerator Pedal Is Released

1. Manual linkage.
2. Vacuum diaphragm or piping.
3. Downshift solenoid, kickdown switch and wiring.
4. Oil pressure.
5. Manual control valve.
6. Governor valve.
7. Leak from hydraulic passages.

3-2 Or 2-1 Shift Speed Too High

1. Manual linkage.
2. Vacuum diaphragm and piping.
3. Downshift solenoid, kickdown switch and wiring.
4. Oil pressure.
5. Manual control valve.
6. Governor valve.
7. Leak from hydraulic passages.

No 3-2 Downshift Within Kickdown Limits

1. Downshift solenoid kickdown switch and wiring.
2. Vacuum diaphragm and piping.
3. Oil condition.
4. Manual control valve.
5. Governor valve.
6. Band brake.
7. Leak from hydraulic passages.

Downshift At Speed Above Kickdown Limit

1. Manual linkage.
2. Vacuum diaphragm and piping.
3. Oil pressure.
4. Oil condition.
5. Manual control valve.
6. Governor valve.
7. Transmission air check.
8. Front clutch.
9. Leak from hydraulic passages.

Slipping 3-2 Downshift

1. Vacuum diaphragm and piping.
2. Oil pressure.
3. Oil condition.
4. Manual control valve.
5. Transmission air check.
6. Band servo.
7. Front clutch.
8. Band brake.
9. Leak from hydraulic passages.
10. Front clutch check ball.

No 3-2 Forced Downshift

1. Manual linkage.
2. Oil pressure.
3. Oil condition.
4. Manual control valve.
5. Band servo.
6. Band brake.
7. Leak from hydraulic passages.

Downshifting 2-1 Or Upshifting 2-3 When Selector Lever Is Placed In 2

1. Manual linkage.
2. Oil pressure.
3. Manual control valve.

No 3-2 Downshift When Selector Lever Is Placed In 1

1. Manual linkage.
2. Oil pressure.
3. Oil condition.
4. Manual control valve.
5. Governor valve.
6. Transmission air check.
7. Band servo.
8. Front clutch.
9. Band brake.
10. Leak from hydraulic passages.

No Engine Braking In 1

1. Manual linkage.
2. Oil pressure.
3. Oil condition.
4. Manual control valve.
5. Transmission air check.
6. Low and reverse brake.
7. Leak from hydraulic passages.

Upshifting From 1-2 Or 2-3 When Selector Lever Is Placed In 1

1. Manual linkage.
2. Manual control valve.
3. Leak from hydraulic passages.

No 2-1 Shift When Selector Lever Is Placed In 1

1. Oil level.
2. Manual linkage.
3. Oil condition.
4. Manual control valve.
5. Governor valve.
6. Band servo.
7. Transmission air check.
8. Low and reverse brake.
9. Leak from hydraulic passages.

Harsh 2-1 Downshift When Selector Is Placed In 1

1. Vacuum diaphragm and piping.
2. Engine stall speed.
3. Oil condition.
4. Manual control valve.
5. Low and reverse brake.

Transmission Overheats

1. Oil level.
2. Rear lubrication.
3. Oil pressure.
4. Engine stall speed.
5. Oil condition.
6. Manual control valve.
7. Transmission air check.
8. Band servo.
9. Front clutch.
10. Band brake.
11. Low and reverse brake.
12. Oil pump.
13. Leak from hydraulic passages.
14. One-way clutch in torque converter.
15. Planetary gear.

Excessive Chatter In N Or P

1. Oil level.
2. Oil pressure.
3. Oil pump.

Excessive Chatter In D, 2, 1 And R

1. Oil level.
2. Oil pressure.
3. Rear clutch.
4. Oil pump.
5. One-way clutch in power train.
6. Planetary gear.