mercury Workshop Repair Guides

Mercury Workshop Service and Repair Manuals

Sensors and Switches - Emission Control Systems > < Positive Crankcase Ventilation Valve|Diagrams
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Positive Crankcase Ventilation Valve: Service and Repair

Positive Crankcase Ventilation (PCV) Valve

Removal and Installation

1. Disconnect the PCV valve electrical connector.

2. Release the clamp and disconnect the crankcase ventilation tube from the PCV valve.

3. NOTICE: A new positive crankcase ventilation (PCV) valve must be installed if removed from the valve cover. Damage will occur to the

locking mechanism on the PCV valve.

NOTE: To install, apply clean engine oil to the O-ring seal.

NOTE: When installing, 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.

Rotate the PCV valve counterclockwise and remove it from the valve cover.

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Discard the PCV valve.

4. To install, reverse the removal procedure.

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Install a new PCV valve.

Sensors and Switches - Emission Control Systems > < Positive Crankcase Ventilation Valve|Diagrams