Nissan Pathfinder (2011 year). Manual — part 133
PRECAUTIONS
CO-35
< PRECAUTION >
[VK56DE]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
5. When the repair work is completed, return the ignition switch to the
″
LOCK
″
position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-III.
Precaution for Liquid Gasket
INFOID:0000000006247867
REMOVAL OF LIQUID GASKET SEALING
• After removing nuts and bolts, separate the mating surface, using Tool and remove old liquid gasket sealing.
CAUTION:
Be careful not to damage the mating surfaces.
• Tap (1) Tool to insert it, and then slide (2) it by tapping on the side
as shown.
• In areas where Tool is difficult to use, use plastic hammer to lightly
tap the part, to remove it.
CAUTION:
If for some unavoidable reason suitable tool such as screw-
driver is used, be careful not to damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Remove the old liquid gasket adhering to the gasket application
surface and the mating surface using suitable tool.
• Remove the liquid gasket completely from the groove of the
liquid gasket application surface, bolts, and bolt holes.
2. Thoroughly clean the mating surfaces and remove adhering
moisture, grease and foreign material.
3. Attach the liquid gasket tube to the Tool.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-14, "Recommended Chemical Products and Sealants"
.
4. Apply the liquid gasket without breaks to the specified location
with the specified dimensions.
• If there is a groove for the liquid gasket application, apply the
liquid gasket to the groove.
• As for the bolt holes, normally apply the liquid gasket inside
the holes. If specified in the procedure, it should also be
applied outside the holes.
• Within five minutes of liquid gasket application, install the mat-
ing component.
• If the liquid gasket protrudes, wipe it off immediately.
• Do not retighten after the installation.
• Wait 30 minutes or more after installation before refilling the
engine with engine oil and engine coolant.
CAUTION:
If there are specific instructions in this manual, observe them.
Tool number
: KV10111100 (J-37228)
WBIA0566E
PBIC0003E
Tool number
: WS39930000 ( — )
WBIA0567E
SEM159F
2011 Pathfinder
CO-36
< PREPARATION >
[VK56DE]
PREPARATION
PREPARATION
PREPARATION
Special Service Tool
INFOID:0000000006247868
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name
Description
KV10111100
(J-37228)
Seal cutter
Removing chain tensioner cover and water
pump cover
WS39930000
( — )
Tube presser
Pressing the tube of liquid gasket
EG17650301
(J-33984-A)
Radiator cap tester adapter
Adapting radiator cap tester to radiator cap
and radiator filler neck
a: 28 (1.10) diameter
b: 31.4 (1.236) diameter
c: 41.3 (1.626) diameter
Unit: mm (in)
KV991J0070
(J-45695)
Coolant refill tool
Filling cooling system
KV991J0010
(J-23688)
Engine coolant refractometer
Checking concentration of ethylene glycol in
engine coolant
—
(J-24460-92)
Radiator Pressure Test Adapter
Pressure testing of the pressurized cooling
system overflow tank
NT046
S-NT052
S-NT564
LMA053
WBIA0539E
AWBIA0891ZZ
2011 Pathfinder
PREPARATION
CO-37
< PREPARATION >
[VK56DE]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
Commercial Service Tool
INFOID:0000000006247869
Tool name
Description
Power tool
Loosening bolts, screws and nuts.
Radiator cap tester
Checking radiator and radiator cap
PIIB1407E
PBIC1982E
2011 Pathfinder
C
O
- 3 8
< SYSTEM DESCRIPTION >
[VK56DE]
COOLING SYSTEM
SYSTEM DESCRIPTION
COOLING SYSTEM
Cooling Circuit
INFOID:0000000006247870
AWBIA0089ZZ
1.
Cylinder head (LH)
2.
Water cut valve
3.
Cylinder head (RH)
4.
Oil cooler
5.
Reservoir tank
6.
Cylinder block (RH)
7.
Thermostat
8.
Water pump
9.
Cylinder block (LH)
10. Radiator
A.
From heater
B.
To electronic throttle control actuator
C.
To heater
D.
From electronic throttle control actuator
2011 Pathfinder
COOLING SYSTEM
CO-39
< SYSTEM DESCRIPTION >
[VK56DE]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
Schematic
INFOID:0000000006247871
AWBIA0090ZZ
1.
Radiator
2.
Reservoir tank
3.
Thermostat and thermostat housing
4.
Water pump
5.
Cylinder block
6.
Cylinder head
7.
Water cut valve
8.
Heater
9.
Electronic throttle control actuator
10. Oil cooler
A.
Thermostat closed
B.
Thermostat open
2011 Pathfinder
CO-40
< SYSTEM DESCRIPTION >
[VK56DE]
OVERHEATING CAUSE ANALYSIS
OVERHEATING CAUSE ANALYSIS
Troubleshooting Chart
INFOID:0000000006247872
Symptom
Check items
Cooling sys-
tem parts
malfunction
Poor heat transfer
Water pump malfunction
Worn or loose drive belt
—
Thermostat stuck closed
Coolant circulation
Damaged fins
Dust contamination or pa-
per clogging
Physical damage
Clogged radiator cooling
tube
Excess foreign material
(rust, dirt, sand, etc.)
Water cut valve malfunction
Physical damage
Reduced air flow
Cooling fan does not oper-
ate
Fan assembly
—
High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud
—
Radiator shroud
—
Improper engine coolant
mixture ratio
—
Engine coolant viscosity
—
Poor engine coolant quality
—
—
Insufficient engine coolant
Engine coolant leaks
Cooling hose
Loose clamp
Cracked hose
Water pump
Poor sealing
Radiator cap
Loose
Poor sealing
Radiator
O-ring for damage, deterio-
ration or improper fitting
Cracked radiator tank
Cracked radiator core
Reservoir tank
Cracked reservoir tank
Overflowing reservoir tank
Exhaust gas leaks into cool-
ing system
Cylinder head deterioration
Cylinder head gasket deteri-
oration
2011 Pathfinder
OVERHEATING CAUSE ANALYSIS
CO-41
< SYSTEM DESCRIPTION >
[VK56DE]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
Except cool-
ing system
parts mal-
function
—
Overload on engine
Abusive driving
High engine rpm under no
load
Driving in low gear for ex-
tended time
Driving at extremely high
speed
Powertrain system malfunc-
tion
—
Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked radiator grille
Installed car brassiere
Mud contamination or paper
clogging
Blocked radiator
Blocked or restricted air
flow
Blocked bumper
—
Blocked condenser
Blocked air flow
Installed large fog lamp
Symptom
Check items
2011 Pathfinder
CO-42
< PERIODIC MAINTENANCE >
[VK56DE]
ENGINE COOLANT
PERIODIC MAINTENANCE
ENGINE COOLANT
System Inspection
INFOID:0000000006247873
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
• Cracks
• Damage
• Loose connections
• Chafing
• Deterioration
CHECKING RESERVOIR LEVEL
• Check if the engine coolant reservoir tank level is within MIN to
MAX level when the engine is cool.
• Adjust engine coolant level as necessary.
CHECKING COOLING SYSTEM FOR LEAKS
WARNING:
Never remove the radiator/reservoir cap when the engine is hot. Serious burns could occur from high-
pressure engine coolant escaping from the radiator or reservoir.
• To check for leakage, apply pressure to the cooling system at the
reservoir filler neck using suitable tool and Tool.
CAUTION:
Higher pressure than specified may cause radiator damage.
NOTE:
In case that engine coolant decreases, replenish cooling system
with engine coolant.
• If any concerns are found, repair or replace damaged parts.
CHECKING RESERVOIR CAP
1. Inspect the reservoir cap.
• Replace the cap if the metal plunger cannot be seen around the edge of the black rubber gasket.
• Replace the cap if deposits of waxy residue or other foreign material are on the black rubber gasket or
the metal retainer.
NOTE:
Thoroughly wipe out the reservoir filler neck to remove any waxy residue or foreign material.
SMA412B
Tool number
: — (J-24460-92)
Leakage test pressure
: 137 kPa (1.4 kg/cm
2
, 20 psi)
WBIA0612E
2011 Pathfinder
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст