PCV Valve: Description

The PCV valve contains a spring loaded plunger. The plunger meters the amount of crankcase vapors routed into the combustion chamber based on intake manifold vacuum (Fig 1 ) or (Fig 2 ).

Fig 1: PCV Valve -2.7L

Courtesy of DAIMLERCHRYSLER CORP.

Fig 2: PCV Valve-3.2/3.5L

Courtesy of DAIMLERCHRYSLER CORP.