Positive Crankcase Ventilation 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:
| • | Stalling or low idle speed |
A leaking PCV hose may cause the following conditions:
