Engine Oil Pressure: Testing and Inspection

OIL PRESSURE INSPECTION [SKYACTIV-G 2.0]

WARNING:
- Hot engines and engine oil can cause severe burns. Turn off the engine and wait until it and the engine oil have cooled.
- A vehicle that is lifted but not securely supported on safety stands is dangerous. It can slip or fall, causing death or serious injury. Never work around or under a lifted vehicle if it is not securely supported on safety stands.
- Continuous exposure to USED engine oil has caused skin cancer in laboratory mice. Protect your skin by washing with soap and water immediately after working with engine oil.

1. Remove the battery cover. Removal and Replacement

2. Disconnect the negative battery cable.

3. Remove the aerodynamic under cover No.2. Aerodynamic Under Cover No. 2 Removal/Installation

4. Remove the oil pressure switch.

NOTE:
- This inspection can be performed using a combination of SSTs 49 0187 280A (oil pressure gauge), or using the following combination of the SSTs.






- 49 D019 908 (gauge), 49 D019 909 (hose), 49 D019 910 (adapter), and 49 D019 911 (adapter).






5. Install the SSTs to the oil pressure switch installation hole using the following procedure.

Using SSTs 49 0187 280A
- Install SST 49 0187 280A to the oil pressure switch installation hole.

Using SSTs 49 D019 908, 49 D019 909, 49 D019 910, and 49 D019 911
- Assemble SSTs 49 D019 908, 49 D019 909, and 49 D019 911 outside of the engine compartment beforehand.
- Install SST 49 D019 910 to the oil pressure switch installation hole.
- Install SST 49 D019 911 to the SST 49 D019 910.

6. Connect the negative battery cable. Removal and Replacement

7. Warm up the engine to normal operating temperature.

8. Run the engine at the specified speed, and note the gauge readings.

- If not within the specification, inspect for the cause and repair or replace if necessary.

NOTE:
- The oil pressure can vary with oil viscosity, temperature and engine speed.

Oil pressure (reference value) [oil temperature: 90 °C {194 °F}, coolant temperature: 90 °C {194 °F}]
- Lo : 110-175 kPa {1.13-1.78 kgf/cm2, 16.0-25.3 psi} [1,500 rpm]
- Hi : 300-430 kPa {3.06-4.38 kgf/cm2, 43.6-62.3 psi} [4,500 rpm]

9. Stop the engine and wait until it is cools.

10. Disconnect the negative battery cable.

11. Remove the SSTs.

12. Install the oil pressure switch. Service and Repair

13. Connect the negative battery cable. Removal and Replacement

14. Start the engine and confirm that there is no oil leakage.

- If there is oil leakage, repair or replace the applicable part.

15. Install the aerodynamic under cover No.2. Aerodynamic Under Cover No. 2 Removal/Installation

16. Install the battery cover. Removal and Replacement