Hydraulic Pressure Test
The content of this article/image reflects the changes called out by TSB 03-23-001HYDRAULIC PRESSURE TESTS
1. Check the A/T fluid level and temperature. Check engine coolant temperature.
^ A/T fluid level: "HOT" mark on the dipstick
^ A/T fluid temperature: 70 - 80°C (158 - 176°F)
^ Engine coolant temperature: 80 - 100°C (176 - 212°F)
CAUTION: The fluid temperature should be within 70 - 80°C (158 - 176°F) during the test.
2. Raise the vehicle so that the wheels are free to turn.
3. Connect the special tools (3.0 MPa (427 psi) oil pressure gauge [MD998330] and adapters [MD998332, MD998900]) to each pressure discharge port.
NOTE:
^ 2ND: Second brake pressure port
^ UD: Underdrive clutch pressure port
^ LO: Low-reverse brake pressure port
^ DR: Torque converter release pressure port
^ DA: Torque converter apply pressure port ("DA "pressure is approximately the same as the "OR" pressure, so measurements are not needed)
^ RV: Reverse clutch pressure port
^ OD: Overdrive clutch pressure port
4. Restart the engine.
5. Check that there are no leaks around the special tool port adapters.
6. Measure the hydraulic pressure at each port under the conditions given in the standard hydraulic pressure table, and check that the measured values are within the standard value ranges.
7. If not within the standard value, stop the engine and refer to the Hydraulic pressure test diagnosis table.
8. Recover the O-ring from the port plug and replace it.
9. Remove the special tool, and install the plugs to the hydraulic pressure ports.
10. 0n completion, start the engine and check that there are no leaks around the plugs.
STANDARD HYDRAULIC PRESSURE TEST
NOTE: If the torque converter pressure Is the assured, the engine speed should be 1,500 r/min or less.
HYDRAULIC PRESSURE TEST DIAGNOSIS TABLE
OIL SEAL LAYOUT