Engine Oil Pressure: Testing and Inspection

Engine Oil Pressure Test

Special Tools Required

- Oil Pressure Hose 07ZAJ-S5AA200
- A/T Low Pressure Gauge w/Panel 07406-0070301
- A/T Pressure Test Hose 07AAJ-PY4A100
- A/T Pressure 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. Remove the rocker arm oil pressure sensor (A) Service and Repair, and install the oil pressure hose, the pressure gauge adapter, the A/T low pressure gauge w/panel, the A/T pressure test hose, and the A/T pressure 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.
- Blocking of oil strainer.
- Inspect the oil pressure relief valve Service and Repair.
- Inspect the oil pump Service and Repair.