Nissan Pathfinder (2012 year). Manual - part 461

 

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Nissan Pathfinder (2012 year). Manual - part 461

 

 

LU-26

< PERIODIC MAINTENANCE >

[VK56DE]

ENGINE OIL

PERIODIC MAINTENANCE

ENGINE OIL

Inspection

INFOID:0000000007357890

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-18, "FOR USA AND CANADA : Fluids and Lubricants"

 (United

States and Canada) or  

MA-20, "FOR MEXICO : Fluids and Lubri-

cants"

 (Mexico).

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

• Intake valve timing control cover

• Intake valve timing control solenoid valve

• Front cover

• Mating surface between cylinder block and cylinder head

• Mating surface between cylinder head and rocker cover

• Crankshaft oil seal (front and rear)

OIL PRESSURE CHECK

WARNING:

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

• Put the A/T shift selector in the Park (P) position.

1. Check the engine oil level. Refer to 

LU-26, "Inspection"

.

2. Remove engine under cover using power tool. Refer to 

EXT-15, "Removal and Installation"

.

3. Disconnect the oil pressure switch (A) harness connector.
4. Remove the oil pressure switch (A) using suitable tool.

CAUTION:

Do not drop or shock oil pressure switch.

SMA954C

WBIA0791E

August 2012

2012 Pathfinder

ENGINE OIL

LU-27

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5. Install Tools.

6. Start the engine and warm it up to normal operating temperature.
7. Check the engine oil pressure with engine running under no-load. Refer to 

LU-36, "Standard and Limit"

.

CAUTION:

If the difference between the test results and the specification is extreme, check the oil passages

and oil pump for leaks and blockages.

8. After the inspections, install oil pressure switch as follows:
a. Remove old liquid gasket adhering to oil pressure switch and engine.
b. Apply liquid gasket and tighten oil pressure switch to the specification.

Use Genuine RTV Silicone Sealant or equivalent. Refer to 

GI-14, "Recommended Chemical Prod-

ucts and Sealants"

.

c. After warming up engine, ensure there are no engine oil leaks. 

Changing Engine Oil

INFOID:0000000007357891

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.

1. Warm up the engine, and check for oil leaks.
2. Stop the engine and wait for at least 10 minutes.
3. Remove the oil drain plug and oil filler cap to drain the old oil.
4. 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.

• Do not reuse copper sealing washer.

5. Refill the engine with new specified 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.

6. Warm up the engine and check the area around the drain plug and oil filter for oil leaks. Repair as neces-

sary.

Tool number

: 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-172, "Removal and Installation"

.

Oil grade and viscosity

: Refer to 

MA-18, "FOR USA AND CANADA : Flu-

ids and Lubricants"

 and  

MA-19, "FOR USA AND 

CANADA : SAE Viscosity Number"

 (United 

States and Canada) or 

MA-20, "FOR MEXICO : 

Fluids and Lubricants"

 and 

MA-20, "FOR MEXI-

CO : SAE Viscosity Number"

 (Mexico).

Oil capacity

: Refer to 

LU-36, "Standard and Limit"

.

August 2012

2012 Pathfinder

LU-28

< PERIODIC MAINTENANCE >

[VK56DE]

ENGINE OIL

7. Stop the engine and wait for more than 10 minutes.
8. Check the oil level using the dipstick as shown. Add oil as nec-

essary and install the oil filler cap. Refer to 

LU-26, "Inspection"

.

CAUTION:

Do not overfill the engine with oil.

9. Install engine under cover. Refer to 

EXT-15, "Removal and

Installation"

.

SMA954C

August 2012

2012 Pathfinder

OIL FILTER

LU-29

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OIL FILTER

Removal and Installation

INFOID:0000000007357892

REMOVAL

1. Remove the engine under cover access cover.
2. Drain engine oil. Refer to 

LU-27, "Changing Engine Oil"

.

3. 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:

• The oil filter is equipped with a pressure relief valve.

• Use Genuine NISSAN oil filter or equivalent.

• When removing, position a shop cloth to absorb any

engine oil leaks or spills.

• Do not allow engine oil to adhere to the drive belts.

• Completely wipe off any engine oil that adheres to the engine and the vehicle.

INSTALLATION

1. Remove foreign materials adhering to the oil filter seal mating surface.
2. Apply clean engine oil to the new oil filter as shown.

3. Screw on the oil filter manually until it touches the installation

surface, then tighten it by 2/3 turn as shown. Or tighten to speci-

fication.

4. Refill engine with new engine oil. Refer to 

LU-27, "Changing Engine Oil"

.

5. Inspect the engine for oil leaks. Repair as necessary.
6. Install the engine under cover access cover.

INSPECTION AFTER INSTALLATION

1. Check the engine oil level. Refer to 

LU-26, "Inspection"

.

2. Start the engine and check for engine oil leaks. Repair as necessary
3. Stop the engine and wait for 10 minutes.
4. Check the engine oil level and add engine oil as required.

Tool number

: KV10115801 (J-38956)

WBIA0388E

SMA010

Oil filter

: 17.7 N·m (1.8 kg-m, 13 ft-lb)

SMA229B

August 2012

2012 Pathfinder

LU-30

< REMOVAL AND INSTALLATION >

[VK56DE]

OIL COOLER

REMOVAL AND INSTALLATION

OIL COOLER

Exploded View

INFOID:0000000007357893

Removal and Installation

INFOID:0000000007357894

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.

NOTE:

When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-

ing.

REMOVAL

1. Drain engine coolant from radiator and cylinder block. Refer to 

CO-42, "Changing Engine Coolant"

 and

EM-228, "Disassembly and Assembly"

.

2. Remove engine front under cover using suitable tool. Refer to 

EXT-15, "Removal and Installation"

.

3. Disconnect water hoses from oil cooler.

CAUTION:

Perform this step when engine is cold.

4. Remove oil filter. Refer to 

LU-29, "Removal and Installation"

.

5. Remove connector bolt, oil cooler, and O-ring. 

CAUTION:

WBIA0790E

1.

Oil pan

2.

Water hose

3.

Water pipe

4.

Water hose

5.

Connector bolt

6.

Oil filter

7.

Oil cooler

8.

O-ring

9.

Relief valve

10. Water hose

11. Connector pipe

12. Gasket

A.

To thermostat housing

B.

Refer to 

LU-29

C.

To cylinder block

August 2012

2012 Pathfinder

OIL COOLER

LU-31

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Do not reuse O-ring.

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 necessary, replace relief valve.

INSTALLATION

Installation is in the reverse order of removal, paying attention to the following.

• If replacement of the relief valve is necessary, install the new relief valve in place by tapping it in using suit-

able tool.

CAUTION:

Do not reuse relief valve.

• 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.

CAUTION:

Do not reuse O-ring.

INSPECTION AFTER INSTALLATION

• Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required

quantity, fill to the specified level. Refer to 

MA-18, "FOR USA AND CANADA : Fluids and Lubricants"

 (United

States and Canada) or 

MA-20, "FOR MEXICO : Fluids and Lubricants"

 (Mexico).

• Use procedure below to check for fuel leakage.

• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-

age at connection points.

• Start engine. With engine speed increased, check again for fuel leakage at connection points.

• Run engine to check for unusual noise and vibration.

NOTE:

If hydraulic pressure inside timing chain tensioner drops after removal and installation, slack in the guide

may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop

after hydraulic pressure rises.

• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gas, or any oils/fluids including

engine oil and engine coolant.

• Bleed air from passages in lines and hoses, such as in cooling system.

• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec-

ified level, if necessary.

• Summary of the inspection items:

*Power steering fluid, brake fluid, etc.

KBIA2500E

Item

Before starting engine

Engine running

After engine stopped

Engine coolant

Level

Leakage

Level

Engine oil

Level

Leakage

Level

Transmission/
transaxle fluid 

A/T and CVT Models

Leakage

Level/Leakage

Leakage

M/T Models

Level/Leakage

Leakage

Level/Leakage

Other oils and fluids*

Level

Leakage

Level

Fuel

Leakage

Leakage

Leakage

Exhaust gas

Leakage

August 2012

2012 Pathfinder

LU-32

< REMOVAL AND INSTALLATION >

[VK56DE]

OIL PUMP

OIL PUMP

Exploded View

INFOID:0000000007357895

Removal and Installation

INFOID:0000000007357896

REMOVAL

1. Remove the timing chain cover. Refer to 

EM-188, "Removal and Installation"

.

2. Remove the front final drive assembly (Model M205). Refer to 

DLN-391, "Removal and Installation"

.

3. Remove the oil pump drive spacer.
4. 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

• Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required

quantity, fill to the specified level. Refer to 

MA-18, "FOR USA AND CANADA : Fluids and Lubricants"

 (United

States and Canada) or 

MA-20, "FOR MEXICO : Fluids and Lubricants"

 (Mexico).

• Use procedure below to check for fuel leakage.

• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-

age at connection points.

• Start engine. With engine speed increased, check again for fuel leakage at connection points.

• Run engine to check for unusual noise and vibration.

NOTE:

WBIA0415E

1.

Oil pump body

2.

Outer rotor

3.

Inner rotor

4.

Oil pump cover

5.

Oil pump drive spacer

6.

Regulator valve

7.

Regulator spring

8.

Regulator plug

KBIA2512E

August 2012

2012 Pathfinder

OIL PUMP

LU-33

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If hydraulic pressure inside timing chain tensioner drops after removal and installation, slack in the guide

may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop

after hydraulic pressure rises.

• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gas, or any oils/fluids including

engine oil and engine coolant.

• Bleed air from passages in lines and hoses, such as in cooling system.

• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec-

ified level, if necessary.

• Summary of the inspection items:

*Power steering fluid, brake fluid, etc.

Item

Before starting engine

Engine running

After engine stopped

Engine coolant

Level

Leakage

Level

Engine oil

Level

Leakage

Level

Transmission/
transaxle fluid 

A/T and CVT Models

Leakage

Level/Leakage

Leakage

M/T Models

Level/Leakage

Leakage

Level/Leakage

Other oils and fluids*

Level

Leakage

Level

Fuel

Leakage

Leakage

Leakage

Exhaust gas

Leakage

August 2012

2012 Pathfinder

 

 

 

 

 

 

 

Content      ..     459      460      461      462     ..