Engine Oil Pressure: Testing and Inspection
CHECKING ENGINE OIL PRESSURE
1. Remove oil pressure sensor Engine Oil Pressure Sensor/Switch - Removal.
2. Install oil pressure gauge.
3. Warm engine at high idle until thermostat opens.
CAUTION: If oil pressure is 0 at idle, Do Not Run engine.
4. Oil pressure should be 68.9 kPa (10 psi) at idle or 310 - 517 kPa (45 - 75 psi) at 3000 RPM.
5. If oil pressure is 0 at idle, shut off engine. Check for a clogged oil pick-up screen or a pressure relief valve stuck open.