LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2011 >> Expedition RWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine System - General Information >> Description And Testing >> Engine >> Oil Pressure Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Oil Pressure Test

NOTE: Inspect the engine for installation of an aftermarket oil filter. Review oil and filter maintenance history to make sure that the vehicle has not gone beyond the standard Ford recommended oil change intervals. Check the engine oil level and check the oil for contamination. If the oil is contaminated, engine damage can occur, the source of the contamination must be identified and repaired as necessary.
  1. Disconnect and remove the Engine Oil Pressure (EOP) switch from the engine. Refer to the appropriate information in the ENGINE MECHANICAL - 5.4L (3V) article or the procedure.
  2. Connect the Oil Pressure Gauge to the oil pressure port.
  3. Run the engine until normal operating temperature is reached.
  4. With the engine at idle record the gauge reading.
  5. Run the engine at 2,000 RPM and record the gauge reading.
  6. The oil pressure should be within specifications; refer to the SPECIFICATIONS  in the appropriate engine information.
  7. If the pressure is not within specification, go to PINPOINT TEST B .