Positive Crankcase Ventilation (Pcv) System - Honda CR-V 1997 Service Manual

Positive Crankcase Ventilation (PCV) System
Description
The Positive Crankcase Ventilation (PCV) system is
designed to prevent blow-by gas from escaping to the
atmosphere. The PCV valve contains a spring·loaded
plunger. When the engine starts, the plunger in the PCV
valve is lifted in proportion to intake manifold vacuum and
the blow-by gas is drawn directly into the intake manifold.
BREAntER
HOSE
/
PCV VALVE
_: BLOW·BV VAPOR
~ : FRESHAlR
Inspection
1. Check the PCV hoses and connections for leaks and
clogging.
'97 - 98 models:
PCV VALVE
'99 - 00 models:
BREATHER
HOSE
PCVHOSE
BREATHER
HOSE
PCV HOSE
(cont'd)
11-201