Silverado 3500 2WD V8-8.1L VIN G (2005)
Positive Crankcase Ventilation: Description and Operation
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.
