Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Pressure Tests
1999 Acura NSX-T V6-3.2L DOHC (VTEC)SECTION Pressure Tests
PRESSURE TESTING
WARNING: While testing, be careful of the rotating rear wheels. Make sure lifts 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 vehicle.
2. Warm up the engine, then stop the engine and connect a tachometer.
3. Connect a pressure gauge to each inspection hole. 18 Nm (1.8 kg/m; 13 ft. lbs.)
CAUTION: Connect the pressure gauge securely; be sure not to allow dust and other foreign particles to enter the inspection hole.
4. Start the engine, and measure the respective pressure as follows.
- Line Pressure/Clutch Pressure
- Clutch Low/High Pressure
- Throttle B Pressure
5. Install a new washer and the sealing bolt in the inspection hole, and tighten to the specified torque.
Torque: 18 Nm (1.8 kgf-m, 13 ft. lbs.)
NOTE: Do not reuse old aluminum washers.
- Line Pressure/Clutch Pressure Measurement
1. Allow the rear wheels to rotate freely.
2. Run the engine at 2,000 rpm.
3. Shift the shift lever as shown on the chart.
4. Measure each clutch pressure.
WARNING: While testing, be careful of the rotating rear wheels.
- Clutch Low/High Pressure Measurement
WARNING: While testing, be careful of the rotating rear wheels.
1. Allow the rear wheels to rotate freely.
2. Start the engine and let it idle.
3. Shift to [D] position.
4. Slowly press down the accelerator pedal to increase engine rpm until pressure is indicated on the oil pressure gauge. Then release the accelerator pedal, allowing the engine return to an idle, and measure the pressure reading.
5. With the engine idling, press down the accelerator pedal approximately 1/2 of its possible travel and increase the engine rpm until pressure is indicated on the gauge. Note the highest pressure reading obtained.
6. Repeat steps 4 and 5 for each clutch pressure being inspected.
- Throttle B Pressure Measurement
WARNING: While testing, be careful of the rotating rear wheels.
1. Allow the rear wheels to rotate freely.
2. Disconnect the linear solenoid connector.
3. Shift to [D] position.
4. Run the engine at 2,000 rpm.
5. Measure fully opened throttle B pressure.
6. Connect battery voltage to the linear solenoid terminal of the connector.
7. Measure fully closed throttle B pressure.
WARNING: While testing, be careful of the rotating rear wheels. Make sure lifts 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 vehicle.
2. Warm up the engine, then stop the engine and connect a tachometer.
3. Connect a pressure gauge to each inspection hole. 18 Nm (1.8 kg/m; 13 ft. lbs.)
CAUTION: Connect the pressure gauge securely; be sure not to allow dust and other foreign particles to enter the inspection hole.
4. Start the engine, and measure the respective pressure as follows.
- Line Pressure/Clutch Pressure
- Clutch Low/High Pressure
- Throttle B Pressure
5. Install a new washer and the sealing bolt in the inspection hole, and tighten to the specified torque.
Torque: 18 Nm (1.8 kgf-m, 13 ft. lbs.)
NOTE: Do not reuse old aluminum washers.
- Line Pressure/Clutch Pressure Measurement
1. Allow the rear wheels to rotate freely.
2. Run the engine at 2,000 rpm.
3. Shift the shift lever as shown on the chart.
4. Measure each clutch pressure.
WARNING: While testing, be careful of the rotating rear wheels.
- Clutch Low/High Pressure Measurement
WARNING: While testing, be careful of the rotating rear wheels.
1. Allow the rear wheels to rotate freely.
2. Start the engine and let it idle.
3. Shift to [D] position.
4. Slowly press down the accelerator pedal to increase engine rpm until pressure is indicated on the oil pressure gauge. Then release the accelerator pedal, allowing the engine return to an idle, and measure the pressure reading.
5. With the engine idling, press down the accelerator pedal approximately 1/2 of its possible travel and increase the engine rpm until pressure is indicated on the gauge. Note the highest pressure reading obtained.
6. Repeat steps 4 and 5 for each clutch pressure being inspected.
- Throttle B Pressure Measurement
WARNING: While testing, be careful of the rotating rear wheels.
1. Allow the rear wheels to rotate freely.
2. Disconnect the linear solenoid connector.
3. Shift to [D] position.
4. Run the engine at 2,000 rpm.
5. Measure fully opened throttle B pressure.
6. Connect battery voltage to the linear solenoid terminal of the connector.
7. Measure fully closed throttle B pressure.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.