EC/Emission Control Systems — Positive Crankcase Ventilation (PCV) System, page 4

POSITIVE CRANKCASE VENTILATION (PCV) SYSTEM

Air Cleaner

Throttle Valve
Orifice

Blow-by Gas
Fresh Air

EC7038

To reduce HC emission, crankcase blow-by gas (HC) is routed through two metering orifices to the intake manifold for combustion in the cylinders

INSPECTION OF PCV HOSES AND CONNECTIONS

1. VISUALLY INSPECT HOSES, CONNECTIONS AND GASKETS
Check for cracks, leaks or damage.

EC1636

2. CLEAN TWO ORIFICES
Clean off any gum deposits in the orifices with solvent and blow out with compressed air.

Orifice

Orifice

EC1040