16

HIGH OIL CONSUMPTION/LEAKAGE

DESCRIPTION

• Oil consumption is excessive.

POSSIBLE CAUSE

• Improper oil level gauge

• Improper engine oil viscosity

• Oil leakage

• PCV valve malfunction

• Engine internal parts malfunction

Step

Inspection

Results

Action

1

NOTE:

• Add engine oil to the Full position because the validity of the engine oil consumption is determined.

• Visually verify the engine oil level.

• Is the engine oil level at the Full position?

Yes

Go to the next step.

No

Add engine oil to the Full position, then go to the next step.

2

• Record the current traveled distance.

• Have the customer drive the vehicle 1,931 km {1,200 mile}.

• Is the engine oil level appropriate?

Yes

Complete the symptom troubleshooting.(Explain to the customer that it is normal for the engine oil level to decrease from Full to Low after driving the vehicle 1,931 km {1,200 mile}.)

No

Go to the next step.

3

• Inspect the engine oil viscosity.

• Is the engine oil viscosity appropriate?

Yes

Go to the next step.

No

Repair or replace the malfunctioning location, then go to Step 6.

4

• Inspect for engine oil leakage from the outside of the engine.

• Is there engine oil leakage?

Yes

Repair or replace the malfunctioning location, then go to Step 6.

No

Go to the next step.

5

• Inspect the PCV valve.

  (See POSITIVE CRANKCASE VENTILATION (PCV) VALVE INSPECTION [SKYACTIV-G 2.0].)

• Is the PCV valve normal?

Yes

Inspect for internal engine wear, damage.

• Cylinder

• Piston ring

• Intake/exhaust valve

• Cylinder head gasket

• If there is any malfunction:

• Repair or replace the malfunctioning location, then go to the next step.

No

Replace the PCV valve, then go to the next step.

(See POSITIVE CRANKCASE VENTILATION (PCV) VALVE REMOVAL/INSTALLATION [SKYACTIV-G 2.0].)

6

• Has the malfunction symptom been eliminated?

Yes

Complete the symptom troubleshooting.(Explain repair contents to customer)

No

Repeat the inspection from Step 1.