Nissan Pathfinder (2007 year). Manual — part 131
G SENSOR
BRC-133
[HDC/HSA/VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
2007 Pathfinder
G SENSOR
PFP:47930
Removal and Installation
EFS0067R
REMOVAL
1.
Remove center console. Refer to
2.
Remove yaw rate/side/decel G sensor nuts as shown.
●
The location of the sensor is the same for all models.
CAUTION:
●
Do not use power tools to remove or install yaw rate/side/
decel G sensor.
●
Do not drop or strike the yaw rate/side/decel G sensor.
3.
Disconnect harness connector and remove the yaw rate/side/
decel G sensor.
INSTALLATION
Installation is in the reverse order of removal.
NOTE:
After performing the above work, calibrate the decel G sensor. Refer to
BRC-126, "Calibration of Decel G Sen-
WFIA0230E
BRC-134
[HDC/HSA/VDC/TCS/ABS]
G SENSOR
2007 Pathfinder
CO-1
ENGINE COOLING SYSTEM
B ENGINE
CONTENTS
C
D
E
F
G
H
I
J
K
L
M
SECTION
CO
A
CO
2007 Pathfinder
PRECAUTIONS . . . . . . . . . . . . . . .. 2
Precautions for Liquid Gasket . . . . . . . . .. 2
REMOVAL OF LIQUID GASKET SEALING . . .. 2
LIQUID GASKET APPLICATION PROCEDURE
PREPARATION . . . . . . . . . . . . . . ... 3
Special Service Tools . . . . . . . . . . . ... 3
Commercial Service Tools . . . . . . . . . . 4
OVERHEATING CAUSE ANALYSIS . . . . . . .. 5
Troubleshooting Chart . . . . . . . . . . . .. 5
COOLING SYSTEM . . . . . . . . . . . . . 7
Cooling Circuit . . . . . . . . . . . . . . .. 7
System Chart . . . . . . . . . . . . . . ... 8
ENGINE COOLANT . . . . . . . . . . . . . 9
System Check . . . . . . . . . . . . . . .. 9
Changing Engine Coolant . . . . . . . . . .. 10
RADIATOR . . . . . . . . . . . . . . . . 14
Removal and Installation . . . . . . . . . . 14
ENGINE COOLING FAN . . . . . . . . . . .. 17
Removal and Installation (Crankshaft driven type)
Removal and Installation (Motor driven type) . . . 18
REMOVAL . . . . . . . . . . . . . . ... 18
INSTALLATION . . . . . . . . . . . . ... 18
WATER PUMP . . . . . . . . . . . . . . .. 19
Removal and Installation . . . . . . . . . . 19
WATER INLET AND THERMOSTAT ASSEMBLY . 24
Removal and Installation . . . . . . . . . . 24
WATER OUTLET AND WATER PIPING . . . . ... 26
Removal and Installation . . . . . . . . . . 26
SERVICE DATA AND SPECIFICATIONS (SDS) . .. 28
CO-2
PRECAUTIONS
2007 Pathfinder
PRECAUTIONS
PFP:00001
Precautions for Liquid Gasket
EBS00QCQ
REMOVAL OF LIQUID GASKET SEALING
●
After removing nuts and bolts, separate the mating surface, using Tool and remove old liquid gasket seal-
ing.
CAUTION:
Be careful not to damage the mating surfaces.
●
Tap Tool to insert it, and then slide it by tapping on the side as
shown.
●
In areas where Tool is difficult to use, use plastic hammer to
lightly tap the parts, to remove it.
CAUTION:
If for some unavoidable reason suitable tool such as screw-
driver is used, be careful not to damage the mating sur-
faces.
LIQUID GASKET APPLICATION PROCEDURE
1.
Remove old liquid gasket adhering to the liquid gasket applica-
tion surface and the mating surface, Using scraper.
●
Remove 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 materials.
3.
Attach liquid gasket tube to Tool.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-47, "Recommended Chemical Products and Sealants"
4.
Apply liquid gasket without breaks to the specified location with
the specified dimensions.
●
If there is a groove for the liquid gasket application, apply liq-
uid gasket to the groove.
●
As for the bolt holes, normally apply liquid gasket inside the
holes. Occasionally, it should be applied outside the holes.
Make sure to read the text of service manual.
●
Within five minutes of liquid gasket application, install the mat-
ing component.
●
If liquid gasket protrudes, wipe it off immediately.
●
Do not retighten nuts or bolts after the installation.
●
After 30 minutes or more have passed from the installation, fill
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
PREPARATION
CO-3
C
D
E
F
G
H
I
J
K
L
M
A
CO
2007 Pathfinder
PREPARATION
PFP:00002
Special Service Tools
EBS00QCR
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
EG17650301
(J-33984-A)
Radiator cap tester adapter
Adapting radiator cap tester to radiator cap
and radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
KV10111100
(J-37228)
Seal cutter
Removing chain tensioner cover and water
pump cover
WS39930000
(
—
)
Tube presser
Pressing the tube of liquid gasket
KV991J0070
(J-45695)
Coolant refill tool
Filling cooling system
KV991J0010
(J-23688)
Engine coolant refractometer
Checking concentration of ethylene glycol in
engine coolant
S-NT564
NT046
S-NT052
LMA053
WBIA0539E
CO-4
PREPARATION
2007 Pathfinder
Commercial Service Tools
EBS00QCS
Tool name
Description
Power tool
Loosening nuts and bolts
Radiator cap tester
Checking radiator and radiator cap
PBIC0190E
PBIC1982E
OVERHEATING CAUSE ANALYSIS
CO-5
C
D
E
F
G
H
I
J
K
L
M
A
CO
2007 Pathfinder
OVERHEATING CAUSE ANALYSIS
PFP:00012
Troubleshooting Chart
EBS00QCT
Symptom
Check items
Cooling sys-
tem parts
malfunction
Poor heat transfer
Water pump malfunction
Worn or loose drive belt
—
Thermostat stuck closed
—
Damaged fins
Dust contamination or
paper clogging
Clogged radiator cooling
tube
Excess foreign material
(rust, dirt, sand, etc.)
Reduced air flow
Cooling fan does not oper-
ate
Fan assembly
—
High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud
—
—
—
Improper engine coolant
mixture ratio
—
—
—
Poor engine coolant quality
—
Engine coolant viscosity
—
Insufficient engine coolant
Engine coolant leaks
Cooling hose
Loose clamp
Cracked hose
Heater pump
Physical damage
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
cooling system
Cylinder head deterioration
Cylinder head gasket dete-
rioration
CO-6
OVERHEATING CAUSE ANALYSIS
2007 Pathfinder
Except cool-
ing system
parts mal-
function
—
Overload on engine
Abusive driving
High engine rpm under no
load
Driving in low gear for
extended time
Driving at extremely high
speed
Powertrain system mal-
function
—
Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flow
Blocked bumper
—
—
Blocked radiator grille
Installed car brassiere
Mud contamination or
paper clogging
Blocked radiator
—
Blocked condenser
Blocked air flow
Installed large fog lamp
Symptom
Check items
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