Cressida L6-3.0L DOHC (7M-GE) (1989)
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Positive Crankcase Ventilation: Description and Operation
Positive Crankcase Ventilation System
A Positive Crankcase Ventilation (PCV) system is used to provide more complete scavenging of crankcase vapors. Fresh air from the air cleaner is
supplied to the crankcase, mixed with blow-by gases and then passed through a metered orifice into the intake system. Once in the intake system the
mixture is then added to the intake fuel/air charge and burned in the combustion process.
