Positive Crankcase Ventilation System: Hardware

WARNING: This page does not describe the selected car, but rather 30 other vehicles, including the 2004 Mercury Sable, 2004 Mercury Mountaineer, 2004 Mercury Monterey, 2004 Mercury Marauder, and 2004 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: PCV Internal Drawing

Courtesy of FORD MOTOR CO.

Fig 2: Identifying Water Heated PCV

Courtesy of FORD MOTOR CO.

Fig 3: Identifying Quarter-Turn Cam-Lock Design PCV

Courtesy of FORD MOTOR CO.

Fig 4: Identifying Electrically Heated PCV (With Thermal Harness)

Courtesy of FORD MOTOR CO.

NOTE: On vehicle applications that are equipped with a thermal harness to the PCV valve. The thermal harness only provides electrical continuity when temperatures is less than 40° F (5° C) +/- 7° F (+/ - 4°C).