Positive Crankcase Ventilation Valve: Service and Repair

Positive Crankcase Ventilation (PCV) Valve



3.7L Engine











5.0L Engine











5.4L 4V Engine









Removal

1. If equipped, disconnect the PCV valve electrical connector.

2. Disconnect the crankcase ventilation tube-to-PCV valve quick connect coupling. For additional information, refer to Fuel System - General Information Quick Connect Coupling.

3. NOTICE: A new Positive Crankcase Ventilation (PCV) valve must be installed if removed. Upon removal, the plastic retaining ears of the PCV valve are sheared.

Rotate the PCV valve counterclockwise to remove from the valve cover.

- Discard the PCV valve and O-ring seal.

Installation

1. NOTE: If equipped, make sure the PCV valve electrical connector is pointing in the correct position to allow the wiring harness to be connected. Incorrect installation would require removal and replacement of the valve.

Install a new PCV valve and O-ring seal.

2. Connect the crankcase ventilation tube-to-PCV valve quick connect coupling. For additional information, refer to Fuel System - General Information Quick Connect Coupling.

3. If equipped, connect the PCV valve electrical connector.