Lincoln Aviator 2020-2022 Service Manual / Powertrain / Engine / Engine Emission Control - 3.0L EcoBoost / Removal and Installation - Positive Crankcase Ventilation (PCV) Valve

Lincoln Aviator: Engine Emission Control - 3.0L EcoBoost / Removal and Installation - Positive Crankcase Ventilation (PCV) Valve


NOTE: Removal steps in this procedure may contain installation details.

  1. Disconnect the PCV valve quick release coupling.
    Refer to: Quick Release Coupling (310-00A Fuel System - General Information - 3.0L EcoBoost, General Procedures).
  1. NOTICE: A new PCV valve must be installed if removed from the valve cover. Damage will occur to the locking mechanism on the PCV valve.

    Rotate the PCV valve counterclockwise, then remove and discard the PCV valve.


  1. Lubricate the new PCV valve O-ring seal with clean engine oil.
  1. To install, reverse the removal procedure.

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    Remote Control

    Passive Key

    Lincoln Aviator. Remote Control

    The passive key operates the power locks and the remote start system. The passive key must be in your vehicle to use the push button start.

    Note: You may not be able to shift out of park (P) unless the passive key is inside your vehicle.

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