VENTILATION CONTROL SYSTEM
OPERATION
A Positive Crankcase Ventilation (PCV) system is used to
provide complete use of the crankcase vapors. Fresh air
from the air cleaner is supplied to the crankcase. The fresh
air is mixed with blowby gases which are then passed
through a vacuum hose into the intake manifold.
Periodically inspect the hoses and the clamps. Replace
any crankcase ventilation components as required.
A restricted or plugged PCV hose may cause the following
conditions:
Rough idle
Stalling or low idle speed
Oil leaks
Oil in the air cleaner
Sludge in the engine A leaking PCV hose may cause the following conditions:
Rough idle
Stalling
High idle speed
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