SECTION 303-08: Engine Emission Control
2014 Mustang Workshop Manual
REMOVAL AND INSTALLATION
Procedure revision date: 01/07/2013

Positive Crankcase Ventilation (PCV) Valve

 
3.7L Engine

Item Part Number Description
1 — Crankcase ventilation tube-to- PCV valve quick connect coupling (part of 6K817)
2 6A666 PCV valve
3 — PCV valve O-ring seal (part of 6A666)


 
5.0L Engine

Item Part Number Description
1 9E499 Crankcase ventilation tube-to- PCV valve quick connect coupling
2 6A666 PCV valve
3 — PCV valve O-ring seal (part of 6A666)


 
5.8L (4V) Engine

Item Part Number Description
1 14A464 PCV valve electrical connector
2 — Crankcase ventilation tube-to- PCV valve quick connect coupling (part of 6K817)
3 6A666 PCV valve
4 — PCV valve O-ring seal (part of 6A666)

Removal

  1. If equipped, disconnect the PCV valve electrical connector.
  1. Disconnect the crankcase ventilation tube-to- PCV valve quick connect coupling, refer to Section 310-00 .

  1. NOTICE: A new 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.

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.
  1. Connect the crankcase ventilation tube-to- PCV valve quick connect coupling, refer to Section 310-00 .
  1. If equipped, connect the PCV valve electrical connector.