Pressure Tests
PRESSURE TESTINGWARNING:
- While testing, be careful of the rotating front wheels.
- Make sure lifts, jacks and safety stands are placed properly.
CAUTION:
- Before testing, be sure the transmission fluid is filled to the proper level.
- Warm up the engine before testing.
1. Raise the front of the vehicle, and support it with safety stands.
2. Set the parking brake, and block both rear wheels securely.
3. Allow the front wheels to rotate freely.
4. Warm up the engine (the radiator fan comes on), then stop and connect a tachometer.
5. Connect the special tool to each inspection hole.
TORQUE: 18 Nm (1.8 kgfm, 13 ft. lbs.)
CAUTION: Connect the oil pressure gauge securely, be sure not to allow dust and other foreign particles to enter the inspection hole.
NOTE: The A/T Oil Pressure Gauge Set (07406 -0020003) or A/T Low Pressure Gauge (07406 -0070000) may also be used.
6. Measure the respective pressure as follows.
- Line Pressure
- Clutch Pressure
- Clutch Low/High Pressure
- Throttle B Pressure
7. Disconnect the special tool after testing.
8. Install the sealing bolt with a new sealing washer in the inspection hole, and tighten to the specified torque.
TORQUE: 18 Nm (1.8 kgfm, 13 ft. lbs.)
NOTE: Do not reuse old sealing washers; always replace washers.
Line Pressure Measurement
1. Start the engine, and run it at 2,000 rpm.
2. Shift to [N] or [P] position.
3. Measure line pressure.
NOTE: Higher pressure may be indicated if measurements are made in shift lever positions other than or [P] position.
Clutch Pressure Measurement
WARNING: While testing, be careful of the rotating front wheels.
1. Start the engine, and run it at 2,000 rpm.
2. Shift to each shift lever position indicated by the table below.
3. Measure each clutch pressure.
Clutch Low/High Pressure Measurement
WARNING: While testing, be careful of the rotating front wheels.
1. Start the engine, and let it idle.
2. Shift to 11341 position.
3. Slowly depress the accelerator pedal to increase engine rpm until pressure is indicated on the pressure gauge. Then release the accelerator pedal, allowing the engine return to an idle, and measure the pressure reading.
4. With the engine idling, depress the accelerator pedal approximately 1/2 of its possible travel, and increase the engine rpm until pressure is indicated on the gauge. Then measure the highest pressure reading obtained.
5. Repeat steps 3 and 4 for each clutch pressure being inspected.
Throttle B Pressure Measurement
WARNING: While testing, be careful of the rotating front wheels.
1. Disconnect the transmission sub-harness connector (14P).
2. Start the engine, and run it at 1,000 rpm.
3. Measure fully-opened throttle B pressure.
4. Connect battery voltage to the linear solenoid terminals of the transmission sub-harness connector as shown.
5. Measure fully-closed throttle B pressure.