PCV System
The PCV system consists of the following:
- PCV valve
- Hoses
The PCV system uses intake manifold vacuum to ventilate the crankcase and return the fumes to the intake manifold for combustion.
The PCV valve:
- controls the amount of ventilating air and blow-by gases going to the intake manifold.
- is integral to the LH valve cover on the 4.6L (3V) engine. If a new PCV valve must be installed, a new valve cover must be installed on a 4.6L (3V) engine. Refer to ENGINE - 4.6L (3V) .