Oil Pressure Test
WARNING: This page is about a different car, the 2009 Mercury Sable, 2009 Ford Taurus X, and 2009 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect and remove the oil pressure switch from the engine.
- Connect the engine Oil Pressure Gauge to the oil pressure switch oil galley port.
- Run the engine until normal operating temperature is reached.
- Run the engine at the specified RPM and record the gauge reading.
- The oil pressure should be within specifications; refer to the specification chart in the appropriate engine article.
- If the pressure is not within specification, check the following possible sources:
- Insufficient oil
- Oil leakage
- Worn or damaged oil pump
- Oil pump screen cover and tube
- Excessive main bearing clearance
- Excessive connecting rod bearing clearance
- Chain tensioner leak