Automatic Transmission Fluid Leaks
Checks
| Cause
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DEFINITION: Automatic transmission fluid leaks that occur on the transmission.
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Automatic Transmission Fluid Level
| High fluid level -- causing an oil leak at the vent cap (52).
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Automatic Transmission Fluid Condition
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| • | Contaminated with engine coolant, engine oil, brake fluid, etc. |
| • | Oxidized and degraded -- causing oil foaming and an oil leak at the vent cap |
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Vent Cap Assembly
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| • | The vent cap assembly (52) is plugged or damaged -- causing high internal pressure inside the transmission and causing oil leakage at another component. |
| • | Channel plate gasket (28) improperly torqued. |
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Bottom Pan Assembly
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| • | The bottom pan bolts and screws are loose, cross-threaded, or missing. |
| • | The bottom pan (88) is damaged. |
| • | The bottom pan gasket (87) is out of position or damaged. |
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Oil Filter and Seal Assembly
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| • | The oil filter assembly (85) is damaged. |
| • | The oil filter seal assembly (84) is missing or damaged -- causing oil foaming and an oil leak at the vent assembly. |
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Side Cover Assembly
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| • | The side cover bolts and screws (3, 4, 126) are loose, cross-threaded, or missing. |
| • | The side cover (1) is porous or damaged. |
| • | The side cover gasket (5) are out of position or damaged. |
| • | The wiring harness assembly (11) is damaged or is leaking at the electrical connector terminals. |
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Front Wheel Drive Shaft Oil Seal Assemblies
| The front wheel drive shaft oil seal assemblies (2, 5) are loose or damaged.
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Oil Cooler Pipe Seal
| The oil cooler pipe seal (49) are loose, damaged, or are missing.
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Vehicle Speed Sensor Assembly
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| • | The vehicle speed sensor bolt or screw (61) is loose, cross-threaded, or missing. |
| • | The vehicle speed sensor O-ring seal (63) is out of position or is damaged. |
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Line Pressure Tap Plug
| The line pressure tap plug (48) is loose, cross-threaded, damaged, or is missing a sealer.
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Manual Shaft and Detent Lever Assembly
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| • | The manual shaft and detent lever seal assembly (809) is out of position or is damaged. |
| • | The manual shift shaft (807) sealing surface is damaged. |
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Actuator Guide Assembly
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| • | The actuator guide pin (810) is loose or missing. |
| • | The actuator guide (812) is damaged. |
| • | The actuator guide O-ring seal (811) is out of position, missing, or damaged. |
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Torque Converter Seal Assembly
| The torque converter seal assembly (54) is loose or damaged.
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Drive Sprocket Support Assembly
| The drive sprocket support (43) oil drain back holes are plugged or missing -- causing repeat leaks at the torque converter oil seal assembly (54).
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Case Assembly
| The case assembly (51) is porous or damaged.
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