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OBD II Fault Code

  • OBD II P051F

    OBD-II Code Oil leaking from the engine is defined as a Positive Crankcase Ventilation Filter Restriction

    The Crankcase Pressure Sensor tells the engine control module (PCM) how much pressure is building up inside the engine. If the pressure inside the engine gets too high, it can be an indication of the Positive Crankcase Ventilation (PCV) filter being clogged. If the PCM detects excessive pressure from the Crankcase Pressure Sensor, the PCM will set code P051F.

    Oil leaking from the engine Symptoms

    • Oil leaking from the engine

    Common Problems That Trigger the P051F Code

    • Internal engine failure
    • Positive crankcase ventilation (PCV) valve failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue

    Common Repairs Needed for the P051F Code

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