Diagnostic Test
WARNING: This page is about a different car, the 2016 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK ENGINE OIL LEVEL
- Turn ignition switch OFF.
- Check engine oil level. Refer to INSPECTION .
Is the inspection result normal?
YES
GO TO STEP 2 .
NO
GO TO STEP 4 .
- CHECK ENGINE OIL PRESSURE
With CONSULT
- Turn ignition switch ON.
- Select "DATA MONITOR" mode of "ENGINE" using CONSULT.
- Start the engine and check that "EOP SENSOR" changes, according to engine speeds.
Monitor item Condition Value
(Approx.)EOP SENSOR - Engine oil temperature: 80°C (176°F)
- Selector lever: P or N position
- Air conditioner switch: OFF
- No load
Engine speed:
Idle1, 450 mV or more Engine speed:
2, 000 RPM2, 850 mV or more
Without CONSULT
Check engine oil level. Refer to INSPECTION .
Is the inspection result normal?
YES
GO TO STEP 3 .
NO
Check oil pump. Refer to REMOVAL AND INSTALLATION .
- CHECK EOP SENSOR
Check EOP sensor. Refer to COMPONENT INSPECTION .
Is the inspection result normal?
YES
Check intermittent incident. Refer to INTERMITTENT INCIDENT .
NO
Repair or replace error-detected parts.
- CHECK ENGINE OIL LEAKAGE
Check engine oil leakage. Refer to LUBRICATION CIRCUIT .
Is the inspection result normal?
YES
GO TO STEP 5 .
NO
Repair or replace error-detected parts.
- CHECK CAUSE OF ENGINE OIL CONSUMPTION
Check the following item.
Step Inspection item Equipment Standard Reference 1 PCV valve WORK PROCEDURE 2 Exhaust front tube Visual - No blocking
- No abnormal sounds
- 3 Oil pump REMOVAL AND INSTALLATION 4 - Piston
- Piston pin
- Piston ring
- Piston to piston pin oil clearance
- Piston ring side clearance
- Piston ring end gap
INSPECTION 5 Cylinder block - Cylinder block top surface distortion
- Piston to cylinder bore clearance
DISASSEMBLY AND ASSEMBLY Repair or replace error-detected parts.