Leakage Inspection
Leakage InspectionNOTE: An ultra violet light (164-R0756 or equivalent) must be used to detect the fluorescent dye solution.
1. Add UV Fluorescent Tracer dye (164-R3706 or equivalent specifically formulated for ATF) for automatic transmission fluid. Use 1 ounce of dye solution for every 4 quarts of ATF capacity. Add any transmission fluid, designated for the transaxle/transmission, to bring the unit to its correct fluid level.
2. Start and run the engine. Shift the transmission through all the gears several times to make sure the fluorescent dye has had enough time to circulate. Observe the back of the engine cylinder block and the top of the converter housing part of the case for evidence of leakage. Turn off the engine.
3. Position the vehicle on a hoist.
4. NOTE: The leak source will probably be above and or forward of the actual leak indications due to airflow and/or gravity.
Using an ultraviolet light, observe the transmission. Follow the leak back to its source point. Repair as required.
External Fluid Leaks
External Sealing
CAUTION: Do not try to stop a fluid leak by increasing the torque beyond specifications. This may cause damage to the transmission case threads.
The transmission has the following parts to prevent external fluid leakage:
^ Gaskets
^ Lip-type seals
^ O-ring seals
^ Seal rings
^ Seal grommets
^ Thread sealant
External sealing
Fluid Leakage in Torque Converter Area
Part 1:
Part 2:
In diagnosing and correcting fluid leaks in the front pump support and gear and torque converter area, use the above procedures to locate the exact cause of the leakage. Leakage at the front of the transmission, as evidenced by fluid around the torque converter housing, may have several sources. By careful observation it is possible, in many instances, to pinpoint the source of leak before removing the transmission from the vehicle. The paths which the fluid takes to reach the bottom of the torque converter housing are shown in the illustration.