Geely EC718 2009 Workshop Manual page 349

Engine
No
Replace the canister solenoid valve.
Step 8
Next
System normal.
Step 9
2.4.6.4 Crankcase Ventilation (PCV) System Check / Diagnostic
Check crankcase ventilation hose whether there is a vacuum. vacuum should be present in the Hose. If not,
Step 1
check whether the hose is blocked, leaking or ventilation tube connector blocked.
Next
With the engine running, plug the vacuum hose end. When the hose end plugged, check whether there is
Step 2
collapse in all parts of the hose. If hose collapses, the hose should be replaced.
Next
Step 3 If the engine oil gathered in the intake manifold, check whether there are following situations.
Next
Check other parts.
Step 4
Next
End.
Step 5
The consequences of not working correctly
1. If the crankcase ventilation hose is blocked, it will cause the following faults:
– idle instable.
Auxiliary Emission Control JL4G18-D
(a) Turn off the ignition switch.
(b) Replace the canister solenoid valve. Refer to
Solenoid Valve Replacement.
Confirm the repairs completed.
(a) Crankcase vacuum hole blocked.
(b) Crankcase ventilation hood blocked .
(c) Crankcase pressure or channeling gas beyond the
acceptable tolerance range. Refer to
Engine Oil Consumption
(a) Fresh air ventilation or vent hose assembly connector
blocked or leaking.
(b) Throttle body channel blocked.
(c) O-ring missing or damaged.
(d) Check cylinder head covers, oil pan gasket and other sealing
parts for leaking.
EC718/EC718RV EC715/EC715RV 10/2009
2.4.7.3 Canister
2.9.7.3 Abnormal
Diagnostic.
2-267