Engine Oil Pressure: Testing and Inspection

Engine Oil Pressure Test

Special Tools Required

- Pressure gauge adapter 07NAJ-P07010A
- Oil pressure hose 07ZAJ-S5AA200
- A/T pressure hose 07406-0020201
- A/T low pressure gauge w/panel 07406-0070301
- A/T pressure hose, 2,210 mm 07MAJ-PY4011A
- A/T pressure hose, adapter 07MAJ-PY40120
If the low oil pressure indicator stays on with the engine running, check the engine oil level. If the oil level is correct:

1. Remove the rocker arm oil pressure sensor (A), Service and Repair and install the oil pressure hose, the pressure gauge adapter, the A/T pressure hose, the A/T low pressure gauge w/panel, the A/T pressure hose, 2,210 mm, and the A/T pressure hose, adapter, then reinstall the rocker arm oil pressure sensor.

2. Start the engine. Shut it off immediately if the gauge registers no oil pressure. Repair the problem before continuing.

3. Allow the engine to reach operating temperature (fan comes on at least twice). The pressure should be:





4. If the oil pressure is not within specifications, inspect these items:
- Blocking of oil filter.

- Inspect the oil pressure relief valve. Service and Repair

- Blocking of oil screen.

- Inspect the oil pump. Service and Repair