Nissan Pathfinder (2012 year). Instruction — 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
°
C
°
F
Engine coolant
(concentrated)
Demineralized water
or distilled water
– 15
°
5
°
30%
70%
– 35
°
– 30
°
50%
50%
Engine coolant mixture
ratio
Coolant temperature
°
C (
°
F)
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 >
C
D
E
F
G
H
I
J
K
L
M
B
MA
N
O
A
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
.
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
.
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
1.
Drive belt
2.
Power steering oil pump pulley
3.
Generator pulley
4.
Crankshaft pulley
5.
A/C compressor
6.
Cooling fan pulley
7.
Idler pulley
8.
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 >
C
D
E
F
G
H
I
J
K
L
M
B
MA
N
O
A
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
.
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
.
Block Plug and Block Heater Installation
WLIA0020E
WLIA0020E
Part
Washer
Tightening Torque
A
No
EM-105, "Disassembly and Assembly"
.
B
Reuse
No
EM-105, "Disassembly and Assembly"
.
New
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-
(United States and Canada),
(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.
C
Yes
Refer to
EM-105, "Disassembly and Assembly"
D
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
USA AND CANADA : Flu-
ids and Lubricants"
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
2
,
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 >
C
D
E
F
G
H
I
J
K
L
M
B
MA
N
O
A
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
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
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
.
WARNING:
Before replacing the fuel filter, release the fuel pressure from the fuel system. Refer to
.
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.
MA-18, "FOR USA AND CANADA : Fluids and Lubricants"
(United States and Canada),
MA-20, "FOR MEXICO : Fluids and
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.
1.
Air cleaner case (lower)
2.
Air cleaner filter
3.
Air cleaner case (upper)
4.
Air duct and resonator
Front
AWBIA0133GB
PBIC2823E
August 2012
2012 Pathfinder
ENGINE MAINTENANCE (VQ40DE)
MA-29
< PERIODIC MAINTENANCE >
C
D
E
F
G
H
I
J
K
L
M
B
MA
N
O
A
• 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
.
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:
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.
Oil drain plug
: Refer to
EM-36, "Removal and Installation"
.
Oil grade and viscosity
: Refer to
MA-18, "FOR USA AND CANADA : Flu-
(United States and Canada)
MA-20, "FOR MEXICO : SAE Viscosity Num-
(Mexico).
Oil capacity
: Refer to
.
PBIC2823E
Tool number
: KV10115801 (J-38956)
LBIA0425E
August 2012
2012 Pathfinder
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст