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Nissan Pathfinder (2012 year). Manual - part 465

MA-22

< PERIODIC MAINTENANCE >

RECOMMENDED FLUIDS AND LUBRICANTS

Coolant Mixture Ratio

CAUTION:

• When adding or replacing coolant, be sure to use only Genuine NISSAN Engine Coolant or equiva-

lent in quality with the proper mixture ratio.

• The use of other types of engine coolant may damage your cooling system.

When checking the engine coolant mixture ratio by the coolant hydrometer, use the chart below to correct your

hydrometer reading (specific gravity) according to coolant temperature.

Mixed coolant specific gravity

Unit: specific gravity

Outside temperature down to

Composition

Engine coolant

(concentrated)

Demineralized water

or distilled water

– 15

30%

70%

– 35

– 30

50%

Engine coolant mixture

ratio

Coolant temperature

C (

15 (59)

25 (77)

35 (95)

45 (113)

30%

1.046 - 1.050

1.042 - 1.046

1.038 - 1.042

1.033 - 1.038

50%

1.076 - 1.080

1.070 - 1.076

1.065 - 1.071

1.059 - 1.065

August 2012

2012 Pathfinder

ENGINE MAINTENANCE (VQ40DE)

MA-23

< PERIODIC MAINTENANCE >

ENGINE MAINTENANCE (VQ40DE)

DRIVE BELTS
DRIVE BELTS : Exploded View

INFOID:0000000007347355

DRIVE BELTS : Checking Drive Belts

INFOID:0000000007347356

WARNING:

Be sure to perform when the engine is stopped.

1. Remove air duct and resonator assembly when inspecting drive belt. Refer to

EM-26, "Removal and

Installation"

2. Make sure that the auto tensioner indicator is within the allow-

able working range (A) as shown.

3. Visually check entire belt for wear, damage or cracks.
4. If the indicator is out of the allowable range or drive belt is dam-

aged, replace the drive belt. Refer to

EM-14, "Removal and

Installation"

ENGINE COOLANT
ENGINE COOLANT : System Inspection

INFOID:0000000007347357

WARNING:

• Never remove the radiator/reservoir cap when the engine is hot. Serious burns could occur from

high pressure fluid escaping from the radiator or reservoir.

• Wrap a thick cloth around the cap. Slowly push down and turn it a quarter turn to allow built-up pres-

sure to escape. Carefully remove the cap by pushing down and turning it all the way.

CHECKING COOLING SYSTEM HOSES

Check hoses for the following:

• Improper attachment

• Leaks

LBIA0427E

Drive belt

Power steering oil pump pulley

Generator pulley

Crankshaft pulley

A/C compressor

Cooling fan pulley

Idler pulley

Drive belt tensioner

AWBIA0723ZZ

August 2012

2012 Pathfinder

MA-24

< PERIODIC MAINTENANCE >

ENGINE MAINTENANCE (VQ40DE)

• Cracks

• Damage

• Loose connections

• Chafing

• Deterioration

CHECKING RESERVOIR LEVEL

• Check if the engine coolant reservoir tank level is within MIN to

MAX when the engine is cool.

• Adjust engine coolant level as necessary.

ENGINE COOLANT : Changing Engine Coolant

INFOID:0000000007347358

WARNING:

• To avoid being scalded, never change the coolant when the engine is hot.

• Wrap a thick cloth around the cap to carefully remove the cap. First, turn the cap a quarter of a turn

to release any built-up pressure, then push down and turn the cap all the way to remove it.

DRAINING ENGINE COOLANT

1. Turn ignition switch ON and set temperature control lever all the way to HOT position or the highest tem-

perature position. Wait 10 seconds and turn ignition switch OFF.

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

EXT-15, "Removal and Installation"

3. Open the radiator drain plug at the bottom of the radiator, and

remove the reservoir cap. This is the only step required when

partially draining the cooling system (radiator only).

CAUTION:

Do not allow the coolant to contact the drive belts.

SMA412B

LLIA0070E

August 2012

2012 Pathfinder

ENGINE MAINTENANCE (VQ40DE)

MA-25

< PERIODIC MAINTENANCE >

4. When draining all of the coolant in the system for engine

removal or repair, it is necessary to drain the cylinder block.

Remove the cylinder block drain plugs (A), (B), (C), (D) and

block heater if equipped, to drain the cylinder block as shown.

NOTE:

For Canada, the (D) cylinder block drain plug as shown, is not a

cylinder block drain plug but a block heater.

5. Remove the reservoir tank to drain the engine coolant, then clean the reservoir tank before installing it.
6. Check the drained coolant for contaminants such as rust, corrosion or discoloration.

If the coolant is contaminated, flush the engine cooling system. Refer to

MA-24, "ENGINE COOLANT :

Changing Engine Coolant"

REFILLING ENGINE COOLANT

1. Close the radiator drain plug. Install the reservoir tank, cylinder

block drain plugs (A), (B), (C), (D) and block heater (if

equipped), if removed for a total system drain or for engine

removal or repair.

• The radiator must be completely empty of coolant and water.

• Apply sealant to the threads of the cylinder block drain plugs

(A), (B), (C), (D). Use Genuine High Performance Thread

Sealant or equivalent. Refer to

GI-14, "Recommended Chemi-

cal Products and Sealants"

Block Plug and Block Heater Installation

WLIA0020E

Part

Washer

Tightening Torque

Refer to

EM-105, "Disassembly and Assembly"

Reuse

Refer to

EM-105, "Disassembly and Assembly"

New

Refer to

EM-105, "Disassembly and Assembly"

August 2012

2012 Pathfinder

MA-26

< PERIODIC MAINTENANCE >

ENGINE MAINTENANCE (VQ40DE)

2. Set the vehicle heater controls to the full HOT and heater ON position. Turn the vehicle ignition ON with

the engine OFF as necessary to activate the heater mode.

3. Remove the vented reservoir cap and replace it with a non-vented reservoir cap before filling the cooling

system.

4. Install the Tool by installing the radiator cap adapter onto the

radiator neck opening. Then attach the gauge body assembly

with the refill tube and the venturi assembly to the radiator cap

adapter.

5. Insert the refill hose into the coolant mixture container that is

placed at floor level. Make sure the ball valve is in the closed

position.

• Use recommended coolant or equivalent.

Refer to

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

cants"

(United States and Canada),

MA-20, "FOR MEXICO :

Fluids and Lubricants"

(Mexico).

6. Install an air hose to the venturi assembly, the air pressure must

be within specification.

CAUTION:

The compressed air supply must be equipped with an air dryer.

7. The vacuum gauge will begin to rise and there will be an audible hissing noise. During this process open

the ball valve on the refill hose slightly. Rising coolant will be visible in the refill hose. After the refill hose is

full of coolant, close the ball valve. This will purge air trapped in the refill hose.

8. Continue to draw the vacuum until the gauge reaches 28 inches

of vacuum. The gauge may not reach 28 inches in high altitude

locations. Refer to the following table for expected vacuum read-

ings.

9. When the vacuum gauge has reached the specified amount, disconnect the air hose and wait 20 seconds

to see if the system loses vacuum. If the vacuum level drops, perform necessary repairs to the system

and repeat steps 6 - 8 to bring the vacuum to the specified amount. Recheck for leaks.

Yes

Refer to

EM-105, "Disassembly and Assembly"

Plug

Yes

Refer to

EM-105, "Disassembly and Assembly"

Block heater

Refer to

EM-105, "Disassembly and Assembly"

Part

Washer

Tightening Torque

Tool number

: KV991J0070 (J-45695)

Cooling system capacity
(with reservoir)

: Refer to

MA-18, "FOR

USA AND CANADA : Flu-
ids and Lubricants"

(Unit-

ed States and Canada),

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

(Mexico).

Compressed air
supply pressure

: 549 - 824 kPa (5.6 - 8.4 kg/cm

80 - 119 psi)

LLIA0058E

Altitude above sea level

Vacuum gauge reading

0 - 100 m (328 ft)

: 28 inches of vacuum

300 m (984 ft)

: 27 inches of vacuum

500 m (1,641 ft)

: 26 inches of vacuum

1,000 m (3,281 ft)

: 24 - 25 inches of vacuum

LLIA0057E

August 2012

2012 Pathfinder

ENGINE MAINTENANCE (VQ40DE)

MA-27

< PERIODIC MAINTENANCE >

10. Place the coolant container (with the refill hose inserted) at the same level as the top of the radiator. Then

open the ball valve on the refill hose so the coolant will be drawn up to fill the cooling system. The cooling

system is full when the vacuum gauge reads zero.

CAUTION:

Do not allow the coolant container to get too low when filling, to avoid air from being drawn into

the cooling system.

11. Remove the Tool from the radiator neck opening and install the radiator cap.
12. Remove the non-vented reservoir cap.
13. Fill the cooling system reservoir tank to the specified level. Run the engine to warm up the cooling system

and top up the system as necessary before installing the vented reservoir cap.

FLUSHING COOLING SYSTEM

1. Drain the water from the engine cooling system. Refer to

MA-24, "ENGINE COOLANT : Changing Engine

Coolant"

2. Fill the radiator and the reservoir tank (to the “MAX” line), with water. Reinstall the radiator cap and leave

the vented reservoir cap off.

3. Run the engine until it reaches normal operating temperature.
4. Press the engine accelerator two or three times under no-load.
5. Stop the engine and wait until it cools down.
6. Drain the water from the engine cooling system. Refer to

MA-24, "ENGINE COOLANT : Changing Engine

Coolant"

7. Repeat steps 2 through 6 until clear water begins to drain from the radiator.

FUEL LINES
FUEL LINES : Checking Fuel Line

INFOID:0000000007347359

Inspect fuel lines, fuel filler cap and fuel tank for improper attach-

ment, leaks, cracks, damage, loose connections, chafing or deterio-

ration.

If necessary, repair or replace damaged parts.

FUEL FILTER
FUEL FILTER : Changing Fuel Filter

INFOID:0000000007347360

The fuel filter is part of the fuel level sensor unit, fuel filter and fuel pump assembly. Refer to

FL-11, "Removal

and Installation"

WARNING:

Before replacing the fuel filter, release the fuel pressure from the fuel system. Refer to

EC-487, "Fuel

Pressure Check"

AIR CLEANER FILTER

SMA803A

August 2012

2012 Pathfinder

MA-28

< PERIODIC MAINTENANCE >

ENGINE MAINTENANCE (VQ40DE)

AIR CLEANER FILTER : Exploded View

INFOID:0000000007347361

AIR CLEANER FILTER : Removal and Installation

INFOID:0000000007347362

REMOVAL

1. Disconnect air duct and resonator from the air cleaner case (upper).
2. Disconnect MAF/IAT sensor.
3. Unhook clips, and lift air cleaner case (upper).
4. Remove air cleaner filter.

INSTALLATION

Installation is in the reverse order of removal.

ENGINE OIL
ENGINE OIL : Inspection

INFOID:0000000007347363

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),

MA-20, "FOR MEXICO : Fluids and

Lubricants"

(Mexico).

CAUTION:

Do not overfill the engine with oil.

ENGINE OIL : Changing Engine Oil

INFOID:0000000007347364

WARNING:

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

Air cleaner case (lower)

Air cleaner filter

Air cleaner case (upper)

Air duct and resonator

Front

AWBIA0133GB

PBIC2823E

August 2012

2012 Pathfinder

ENGINE MAINTENANCE (VQ40DE)

MA-29

< PERIODIC MAINTENANCE >

• 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 any 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.

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 any oil leaks.
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

MA-28, "ENGINE

OIL : Inspection"

CAUTION:

Do not overfill the engine with oil.

OIL FILTER
OIL FILTER : Removal and Installation

INFOID:0000000007347365

REMOVAL

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

MA-28, "ENGINE OIL : Changing Engine Oil"

3. Remove the oil filter using Tool as shown.

WARNING: