Possible Points of Fluid Leaks
Transmission Oil Pan
- Incorrectly tightened oil pan bolts
- Improperly installed or damaged oil pan gasket
- Damaged oil pan or mounting face
- Incorrect oil pan gasket
Case Leak
- Damaged or missing fill tube seal
- Mislocated fill tube bracket
- Damaged vehicle speed sensor seal
- Damaged manual shaft seal
- Loose or damaged oil cooler connector fittings
- Worn or damaged propeller shaft oil seal
- Loose line pressure pipe plug
- Warped
- Distorted torque converter housing
- Porous casting
Leak at the Torque Converter End
- Converter leak in the weld area
- Converter seal lip cut. Check the converter hub for damage
- Converter seal bushing moved forward and damaged
- Converter seal garter spring missing from the seal
- Porous casting of the transmission case or the oil pump
Leak at the Vent Pipe or the Fluid Fill Tube
- Overfilled system
- Water or coolant in the fluid-the fluid will appear milky.
- Transmission case porous
- Incorrect fluid level indicator
- Plugged vent
- Drain-back holes plugged
- Mispositioned oil pump to case gasket, if equipped
| Callout | Component Name |
|---|---|
| 1 | Manual Shift Shaft Seal Assembly |
| 2 | Oil Pressure Test Hole Plug |
| 3 | Vent Assembly |
| 4 | Reverse Band Servo Cover Seal |
| 5 | Oil Fill Tube Seal |
| 6 | Vehicle Speed Sensor Seal |
| 7 | Drive Shaft Oil Seal Assembly (Right) |
| 8 | Forward Band Servo Cover Seal |
| 9 | Park Pawl Actuator Guide Seal |
| 10 | Torque Converter Oil Seal Assembly |
| 11 | Torque Converter Assembly (Welds/Cracks) |
| 12 | Oil Cooler Pipe Fittings |
| 13 | Case Assembly (Porosity/Cracks) |
| 14 | Case Side Cover Gasket |
| 15 | Electrical Connector Seal |
| 16 | Drive Shaft Oil Seal Assembly (Left) |
| 17 | Case Side Cover Inner Gasket |
| 18 | Oil Pan Gasket |