Geely EC718, EC718RV, EC715, EC715RV. Manual part — 88

No

Step 8

Replace the canister solenoid valve.

(a)

Turn off the ignition switch.

(b)

Replace the canister solenoid valve. Refer to

2.4.7.3

Canister

Solenoid Valve Replacement

.

Confirm the repairs completed.

Next

Step 9

System normal.

2.4.6.4 Crankcase Ventilation (PCV) System Check / Diagnostic

Step 1

Check crankcase ventilation hose whether there is a vacuum. vacuum should be present in the Hose. If not,
check whether the hose is blocked, leaking or ventilation tube connector blocked.

Next

Step 2

With the engine running, plug the vacuum hose end. When the hose end plugged, check whether there is
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.

(a)

Crankcase vacuum hole blocked.

(b)

Crankcase ventilation hood blocked .

(c)

Crankcase pressure or channeling gas beyond the
acceptable tolerance range. Refer to

2.9.7.3

Abnormal

Engine Oil Consumption Diagnostic

.

Next

Step 4

Check other parts.

(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.

Next

Step 5

End.

The consequences of not working correctly

1. If the crankcase ventilation hose is blocked, it will cause the following faults:

–

idle instable.

Engine

Auxiliary Emission Control JL4G18-D

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–

Engine stalls or idle speed is too low.

–

Engine oil leakd.

–

Engine oil enters the intake.

–

Engine sludges.

2. Ventilation hood or hose leak may lead to the following faults:

–

Poor idle.

–

Engine stall.

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2.4.7 Removal and Installation
2.4.7.1

Post-Catalytic

Oxygen

Sensor

Replacement

Removal Procedure:

Warning!

Refer to "Exhaust Service Warning", and "Vehicle Lifting
Warning" in "Warnings and Notices".

FE02-0308b

1.

Disconnect the battery negative cable. Refer to

2.11.8.1

Battery Disconnection

.

2.

Disconnect the post-catalytic oxygen sensor wiring
harness connector.

FE02-0436b

3.

Lift the vehicle.

4.

Remove the heated post-catalytic oxygen sensor.

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Installation Procedure:

FE02-0311b

1.

Install the heated post-catalytic oxygen sensor.

2.

Lower the vehicle.

3.

Connect the post-catalytic oxygen sensor wiring harness
connector.

4.

Connect the battery negative cable.

2.4.7.2

Pre-Catalytic

Oxygen

Sensor

Replacement

Removal Procedure:

Warning!

Refer to "Exhaust Service Warning" in "Warnings and
Notices".

FE02-0437b

1.

Disconnect the battery negative cable. Refer to

2.11.8.1

Battery Disconnection

.

2.

Remove the three-way catalytic converter. Refer to

2.7.6.2

Three-way Catalytic Converter Replacement

.

3.

Remove the heated Pre-Catalytic oxygen sensor.

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