Service manual

G424F(FE) Service Manual Chapter 3. Engine Mechanical System 54
Service Procedure
REMOVAL
1. After disconnecting the vacuum hose (A), remove
the PCV valve (B).
INSPECTION
1. Remove the PCV valve.
2. Check the plunger for movement by inserting a
thin stick (A) toward the valve (B) nut.
3. If the plunger is not moved, it means that PCV
valve is clogging, so, clean or replace PCV valve.
TROUBLESHOOTING
1. Disconnect the vacuum hose from the PCV valve.
2. With the engine at idle, Check the intake manifold
for vacuum when clogging the opened end of PCV
valve.
NOTE: The plunger in PCV valve will move back
and forth.
3. If vacuum is not detected, clean or replace PCV
valve and vacuum hose.
INSTALLATION
Install the PCV valve and connect the vacuum hose.