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Nissan Pathfinder (2009 year). Instruction - part 502

LUBRICATION SYSTEM

LU-7

< FUNCTION DIAGNOSIS >

[VQ40DE]

FUNCTION DIAGNOSIS

LUBRICATION SYSTEM

Lubrication Circuit

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System Chart

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PBIC2821E

PBIC2822E

2009 Pathfinder

LU-8

< ON-VEHICLE MAINTENANCE >

[VQ40DE]

ENGINE OIL

ON-VEHICLE MAINTENANCE

ENGINE OIL

Inspection

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OIL LEVEL

• Before starting the engine make sure the vehicle is parked on a flat

and level surface, then check the oil level. If the engine is already
running, turn it off and allow 10 minutes before checking.

• Pull out oil level gauge and wipe clean.
• Insert oil level gauge.
• Check that the oil level is within the low (L) and high (H) range as

indicated on the dipstick.

• If the engine oil level is out of range, add oil as necessary. Refer to

MA-12, "Fluids and Lubricants"

CAUTION:

Do not overfill the engine with oil.

OIL APPEARANCE

• Check the engine oil for a white milky appearance or excessive contamination.
• If the engine oil is milky, it is highly probable that it is contaminated with engine coolant. Repair or replace

damaged parts.

OIL LEAKAGE

Check for oil leakage around the following areas:
• Oil pans (lower and upper)
• Oil pan drain plug
• Oil pressure switch
• Oil filter
• Oil cooler
• Water pump cover
• Chain tensioner cover
• Intake valve timing control cover and intake valve timing control solenoid valve
• Mating surface between cylinder block and cylinder head
• Mating surface between lower cylinder block and cylinder block
• Mating surface between cylinder head and rocker cover
• Mating surface between front timing chain case and rear timing chain case
• Mating surface between rear timing chain case and cylinder head
• Mating surface between rear timing chain case and cylinder block
• Mating surface between rear timing chain case and lower cylinder block
• Mating surface between rear timing chain case and oil pan (upper)
• Crankshaft oil seals (front and rear)
• Oil level gauge guide
• Camshaft position sensor (PHASE)

OIL PRESSURE CHECK

WARNING:

• Be careful not to burn yourself, as the engine and engine oil may be hot.
• Put the selector lever in the Park "P" position.

Check engine oil level. Refer to

LU-8, "Inspection"

Remove engine undercover using power tool.

PBIC2823E

2009 Pathfinder

ENGINE OIL

LU-9

< ON-VEHICLE MAINTENANCE >

[VQ40DE]

Disconnect the oil pressure switch (B) harness connector.
• A: Oil pan (upper)
•

⇒

: Front

Remove the oil pressure switch (B).

CAUTION:

Do not drop or shock oil pressure switch.

Install Tools.

Start the engine and warm it up to normal operating temperature.

Check the engine oil pressure with engine running under no-load. Refer to

LU-17, "Standard and Limit"

CAUTION:

If the difference is extreme, check the oil passages and oil pump for leaks and blockages.

After the inspections, install oil pressure switch as follows:

Remove old liquid gasket adhering to oil pressure switch and engine.

Apply liquid gasket and tighten oil pressure switch to the specification.
Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-26, "Recommended Chemical Prod-

ucts and Sealants"

After warming up engine, make sure there is no leakage of engine oil with running engine.

Changing Engine Oil

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WARNING:

• Be careful not to burn yourself, as the engine and engine oil may be hot.
• Prolonged and repeated contact with used engine oil may cause skin cancer; try to avoid direct skin

contact with used oil. If skin contact is made, wash thoroughly with soap or hand cleaner as soon as
possible.

Warm up the engine, and check for any oil leaks.

Stop the engine and wait for at least 10 minutes.

Remove the oil drain plug and oil filler cap to drain the old oil.

Install a new washer on the oil drain plug, then install the oil drain plug in the oil pan.

CAUTION:

Clean the drain plug and install with a new washer.

Refill the engine with new specified engine oil.

WBIA0813E

Tool numbers

: ST25051001 (J-25695-1)

: ST25052000 (J-25695-2)

WBIA0571E

Oil pressure switch torque

: 14.7 N·m (1.5 kg-m, 11 ft-lb)

Oil drain plug

: Refer to

EM-35, "Removal and Installation"

Oil grade and viscosity

: Refer to

MA-12, "Fluids and Lubricants"

Oil capacity

: Refer to

MA-12, "Fluids and Lubricants"

2009 Pathfinder

LU-10

< ON-VEHICLE MAINTENANCE >

[VQ40DE]

ENGINE OIL

CAUTION:

The refill capacity depends on the oil temperature and drain time. Use the “Refill oil capacity” val-
ues as a reference and check the oil level using the dipstick when filling the engine with oil.

Warm up the engine and check the area around the drain plug and oil filter for any oil leaks.

Stop the engine and wait for more than 10 minutes.

Check the oil level using the dipstick as shown. Add oil as nec-
essary and install the oil filler cap. Refer to

LU-8, "Inspection"

CAUTION:

Do not overfill the engine with oil.

PBIC2823E

2009 Pathfinder

OIL FILTER

LU-11

< ON-VEHICLE MAINTENANCE >

[VQ40DE]

OIL FILTER

Removal and Installation

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REMOVAL

Remove the engine front undercover using power tool.

Remove the oil filter using Tool as shown.

WARNING:

Be careful not to burn yourself, as the engine and engine oil
may be hot.

CAUTION:

• Oil filter is equipped with a pressure relief valve.
• Use Genuine NISSAN Oil Filter or equivalent.
• When removing, prepare a shop cloth to absorb any

engine oil leaks or spills.

• Do not allow engine oil to adhere to drive belts.
• Completely wipe off any engine oil that adheres to the engine and the vehicle.

INSTALLATION

Remove foreign materials adhering to the oil filter seal mating surface.

Apply clean engine oil to the oil filter seal circumference of the
new oil filter as shown.

Screw on the oil filter instructionly until it touches the installation
surface, then tighten it by 2/3 turn as shown. Or tighten to speci-
fication.

Inspect the engine for oil leaks. Refer to

LU-11, "Removal and Installation"

Install the engine front undercover using power tool.

INSPECTION AFTER INSTALLATION

Check the engine oil level. Refer to

LU-8, "Inspection"

Start the engine and check for engine oil leaks.

Stop the engine and wait for 10 minutes.

Check the engine oil level and add engine oil as required.

Tool number

: KV10115801 (J-38956)

LBIA0425E

SMA010

Oil filter

: 17.7 N·m (1.8 kg-m, 13 ft-lb)

SMA702C

2009 Pathfinder

LU-12

< ON-VEHICLE REPAIR >

[VQ40DE]

OIL COOLER

ON-VEHICLE REPAIR

OIL COOLER

Exploded View

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Removal and Installation

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WARNING:

Be careful not to burn yourself, as the engine oil and engine coolant may be hot.

CAUTION:

• Do not spill engine coolant on the drive belt.
• Do not spill engine oil on rubber parts such as drive belts and engine mounting insulator.

REMOVAL

NOTE:
When removing oil cooler only, step 1 is unnecessary.
1.

Drain engine coolant from radiator and cylinder block. Refer to

CO-12, "Changing Engine Coolant"

and

EM-108, "Disassembly and Assembly"

NOTE:
Perform this step only when removing water pipes and hoses.

Remove engine front undercover using power tool.

Disconnect water hoses from oil cooler, pinching hoses near oil cooler to prevent engine coolant from
spilling.

WBIA0572E

Water connector

Water hose

Water pipe

Oil pan (upper) front side

O-ring

Relief valve

Oil cooler

Oil filter

Connector bolt

2009 Pathfinder

OIL COOLER

LU-13

< ON-VEHICLE REPAIR >

[VQ40DE]

CAUTION:

Perform this step when engine is cold.

Remove oil filter. Refer to

LU-11, "Removal and Installation"

Remove connector bolt, and remove oil cooler.

INSPECTION AFTER REMOVAL

Oil Cooler

Check oil cooler for cracks. Check oil cooler for clogging by blowing compressed air through engine coolant
inlet. If necessary, replace oil cooler assembly.

Relief Valve

Check relief valve for movement, cracks and breaks by pushing the ball. If replacement is necessary, remove
relief valve by prying it out using a suitable tool. Install a new relief valve in place by tapping it in.

INSTALLATION

Installation is in the reverse order of removal, paying attention to the following.
• Confirm that no foreign objects are adhering to the sealing sur-

faces of the oil cooler and oil pan (upper).

• Tighten connector bolt after aligning cutout on oil cooler with pro-

trusion on oil pan (upper) side.

INSPECTION AFTER INSTALLATION

Check engine oil and engine coolant levels and add engine oil and engine coolant. Refer to

LU-8,

"Inspection"

and

CO-11, "System Inspection"

Start the engine, and check for leaks of engine oil or engine coolant.

Stop engine and wait for 10 minutes.

Check the engine oil level and the engine coolant level again. Refer to

PBIC2825E

2009 Pathfinder

LU-14

< ON-VEHICLE REPAIR >

[VQ40DE]

OIL PUMP

OIL PUMP

Exploded View

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Removal and Installation

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REMOVAL

Remove oil pans (lower and upper). Refer to

EM-35, "Removal and Installation"

Remove front timing chain case and timing chain (primary). Refer to

EM-61, "Removal and Installation"

Remove the oil pump assembly.

INSTALLATION

Installation is in the reverse order of removal, paying attention to the following.
• When installing, align crankshaft flat faces with inner rotor flat faces.

INSPECTION AFTER INSTALLATION

Check the engine oil level. Refer to

LU-8, "Inspection"

Start the engine and check for engine oil leaks.

Stop engine and wait for 10 minutes.

Check the engine oil level and adjust engine oil level as required. Refer to

LU-8, "Inspection"

Oil pump body

Oil pump outer rotor

Oil pump inner rotor

Oil pump cover

Regulator valve plug

Regulator valve spring

Regulator valve

PBIC2826E

2009 Pathfinder

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