Automatic Transmission/Transaxle: Testing and Inspection

HARSH ENGAGEMENT IN DRIVE, 1, 2 & REVERSE
1. High idle speed.
2. Improperly adjusted downshift cable.
3. Incorrect line pressure or pressure rise.

DRIVE IN 1 BUT NOT IN DRIVE OR 2
1. Improperly adjusted manual linkage.
2. Incorrect fluid level.
3. Improperly adjusted downshift cable.
4. Dirty valve body passages.
5. Worn front clutch and seals.
6. Worn forward sun gear sealing rings.
7. Leaking or missing driven shaft cup plug.
8. Worn or damaged front pump and drive tangs.
9. Leaking pump inlet pipe.
10. Defective one-way clutch.

NO DRIVE IN DRIVE, 2, 1 & REVERSE
1. Improperly adjusted manual linkage.
2. Incorrect fluid level.
3. Incorrect downshift cable adjustment.
4. Dirty valve body passages.
5. Worn front clutch and seals.
6. Worn forward sun gear sealing rings.
7. Leaking or missing driven shaft cup plug.
8. Worn or damaged front pump and drive tangs.
9. Defective one-way clutch.
10. Leak at pump inlet pipe.

DELAYED OR NO 1-2 SHIFT
1. Incorrect downshift cable adjustment.
2. Dirty governor passages.
3. Dirty valve body passages.
4. Incorrect front band adjustment.
5. Leaking front servo seals or tubes.

SLIPS ON 1-2 SHIFT
1. Improper fluid level.
2. Incorrect downshift cable adjustment.
3. Incorrect front band adjustment.
4. Leaking front servo seals or tubes.
5. Worn front band.
6. Dirty valve body or sticking valves.

DELAYED OR NO 2-3 SHIFT
1. Incorrect downshift cable adjustment.
2. Dirty governor passages.
3. Dirty valve body passages.
4. Incorrect front band adjustment.
5. Leaking front servo seals or tubes.
6. Leaking or damaged rear clutch valve, seals or tubes.

SLIPS ON 2-3 SHIFT
1. Improper fluid level.
2. Incorrect downshift cable adjustment.
3. Incorrect front band adjustment.
4. Dirty valve body passages.
5. Leaking or damaged rear clutch valve, seal or tubes.

HARSH GEAR SHIFTS
1. Incorrect downshift cable adjustment.
2. Incorrect fluid pressure.

DRAG OR BINDING ON 2-3 SHIFT
1. Incorrect front band adjustment.
2. Leaking front servo seals or tubes.

SLIP, BREAKAWAY NOISE OR SHUDDER ON FULL THROTTLE ACCELERATION IN DRIVE OR 2
1. Incorrect manual linkage adjustment.
2. Improper fluid level.
3. Incorrect downshift cable adjustment.
4. Dirty valve body passages.
5. Worn front clutch and seals.
6. Worn forward sun gear sealing rings.
7. Leaking or missing driven shaft cup plug.

LOSS OF PERFORMANCE & OVERHEATING IN DRIVE
1. Defective torque converter.

TRANSMISSION DOWNSHIFTS TOO EASILY
1. Incorrect downshift cable adjustment.

TRANSMISSION WILL NOT DOWNSHIFT
1. Incorrect downshift cable adjustment.
2. Dirty valve body passages.
3. Dirty governor valve passages.

NO 3-2 DOWNSHIFT
1. Incorrect manual linkage adjustment.
2. Incorrect front band adjustment.
3. Leaking front servo seals or tubes.
4. Worn front band.
5. Leaking or damaged rear clutch valve, seals or tubes.

NO 2-1 DOWNSHIFT
1. Improperly adjuster manual linkage.
2. Improper fluid level.
3. Improperly adjuster downshift cable.
4. Incorrect fluid pressures.
5. Incorrect rear band adjustment.
6. Leaking rear servo seals or tubes.
7. Worn rear band.

SLIP, BREAKAWAY NOISE OR SHUDDER ON ACCELERATION IN 1
1. Incorrect manual linkage adjustment.
2. Incorrect downshift cable adjustment.
3. Dirty valve body passages.
4. Worn front clutch and seals.
5. Worn forward sun gear sealing rings.
6. Leaking or missing driven shaft cup plug.

SLIP, BREAKAWAY NOISE OR SHUDDER ON ACCELERATION IN REVERSE
1. Incorrect manual linkage adjustment.
2. Improper fluid level.
3. Incorrect downshift cable adjustment.
4. Dirty valve body passages.
5. Leaking or damaged rear clutch valve, seals or tubes.

SLIPS IN REVERSE
1. Incorrect manual linkage adjustment.
2. Improper fluid level.
3. Incorrect downshift cable adjustment.
4. Incorrect rear band adjustment.
5. Leaking rear servo seals or tubes.
6. Worn rear band.

DRAGS IN REVERSE
1. Incorrect front band adjustment.

NO DRIVE IN REVERSE
1. Incorrect manual linkage adjustment.
2. Improper fluid level.
3. Incorrect downshift cable adjustment.
4. Incorrect rear band adjustment.
5. Dirty valve body passages.
6. Leaking rear servo seal or tubes.
7. Worn rear band.
8. Leaking or damaged rear clutch valve, seal or tubes.

NO PARK
1. Incorrect manual linkage adjustment.
2. Damaged or missing parking pawl, gear or internal linkage.