Operation CHARM: Car repair manuals for everyone.

Crankcase Ventilation System Description

Crankcase Ventilation System Description
The crankcase ventilation system has no serviceable components so routine maintenance of the system is not required.

A closed crankcase ventilation system is used in order to provide a more complete scavenging of crankcase vapors.

The air cleaner supplies the fresh air through a filter to the crankcase.

The crankcase mixes the fresh air blow-by gases.

This mixture then passes through a pipe/passage located in the intake manifold.