Engine Oil Pressure: Testing and Inspection
Oil Pressure TestSpecial Tools Required
^ Pressure gauge adapter 07NAJ-PO7010A
^ 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. J35Z2 engine: Remove the rocker arm oil pressure sensor (A).
J35Z3 engine: Remove the oil pressure switch (A).
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 in the pressure gauge adapter (B).
J35Z3 engine: Install the oil pressure switch in the pressure gauge adapter (B).
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:
Engine Oil Temperature: 176°F (80°C)
Engine Oil Pressure:
At Idle: 70 kPa (0.7 kgf/cm2, 10 psi) min.
At 3,000 rpm: 490 kPa (5.0 kgf/cm2, 71 psi) min.
6. If oil pressure is not within specifications, inspect these items:
^ Inspect the oil pressure relief valve.
^ Check the oil screen for clogging.
^ Inspect the oil pump.