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Oil Pressure Test

WARNING: This page is about a different car, the 2019 Ford F-550 Super Duty, 2019 Ford F-450 Super Duty, 2019 Ford F-350 Super Duty, and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect and remove the oil pressure switch. REFER to: Oil Pressure Switch . or REFER to: Oil Pressure Switch .
  2. Connect a commercially available oil pressure gauge to the oil pressure sender oil galley port.
  3. Run the engine until normal operating temperature is reached.
  4. Run the engine at the specified rpm and record the gauge reading.
  5. The oil pressure should be within specifications, REFER to: Specifications . or REFER to: Specifications .
  6. 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

  7. Remove the commercially available oil pressure gauge.
  8. Install and connect the oil pressure switch. REFER to: Oil Pressure Switch . or REFER to: Oil Pressure Switch .
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