Positive Crankcase Ventilation: 4.7L

WARNING: This page is about a different car, the 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.

The engine is equipped with a closed crankcase ventilation system and a Positive Crankcase Ventilation (PCV) valve. This system consists of, a PCV valve mounted to the oil filler housing. See Fig 2 . The PCV valve is sealed to the oil filler housing with an o-ring, the air cleaner housing, two interconnected breathers threaded into the rear of each cylinder head, tubes and hose to connect the System components. See Fig 3 .

Fig 1: Locating PCV Valve/Hose (3.9L & 5.9L)

Courtesy of CHRYSLER CORP.

Fig 2: Identifying PCV Valve/Oil Filler Tube (4.7L)

Courtesy of CHRYSLER CORP.

Fig 3: Locating PCV System Hoses/Tubes (4.7L)

Courtesy of CHRYSLER CORP.