Engine Oil Pressure: Testing and Inspection

Engine Oil Pressure Test

Special Tools Required
- 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
- Pressure gauge adapter 07NAJ-P07010A

If the low oil pressure indicator stays on with the engine running, check the engine oil level. If the oil level is correct:

1. J35Z2 engine: Remove the rocker arm oil pressure sensor. Service and Repair
J35Z3 engine: Remove the oil pressure switch. Testing and Inspection

2. Install the oil pressure hose, 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.

3. J35Z2 engine: Install the rocker arm oil pressure sensor to the pressure gauge adapter.
J35Z3 engine: Install the oil pressure switch to the pressure gauge adapter.

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

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





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

- Blocking of oil screen.

- Inspect the oil pressure relief valve. Service and Repair

- Inspect the oil pump. Service and Repair