Engine Oil Pressure: Testing and Inspection

Oil Pressure Test





1. Remove the oil pressure switch from the engine block (1).





2. Install a pressure gauge (1) instead of the oil pressure switch.
3. Start the engine, and run the engine at idle until normal operating temperature is reached.
4. Raise the engine speed to 4000 RPM, and measure the oil pressure.
Normal Oil Pressure 330 - 430 kPa (47 - 61 psi) at 4000 RPM
5. If the oil pressure is below specification, refer to the following table.
6. Stop the engine.
7. Remove the pressure gauge.
8. Install the oil pressure switch.
Tighten the oil pressure switch to 14 Nm (11 ft. lbs.).
9. Run the engine, and inspect the engine for oil leaks from the oil pressure switch. Oil Leak Diagnosis Use one of the following methods in order to locate a fluid oil leak.