2008 INFINITI FX35 service

WATER OUTLET AND WATER PIPINGCO-29
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WATER OUTLET AND WATER PIPING
ComponentINFOID:0000000001325860
Removal and InstallationINFOID:0000000001325861
REMOVAL
1. Remove front engine undercover with power tool.
2. Drain engine coolant from radiator drain plug at the
bottom of radiator, and from water drain plug at the
front of cylinder block. Refer to CO-10, "
Changing Engine Coolant" and CO-22, "Component".
CAUTION:
 Perform this step when the engine is cold.
 Do not spill engine coolant on drive belts.
3. Remove engine cover with power tool. Refer to EM-19, "
Component".
4. Remove air duct (inlet), air duct and air cleaner case assembly. Refer to EM-17, "
Component".
5. Remove radiator hose (upper) and heater hose.
6. Remove the following parts, when remove water outlet.  A/T fluid charging pipe: Refer to AT-241, "
Removal and Installation (2WD Models)".
 Intake manifold collectors (upper and lower). Refer to EM-19, "
Component".
 Rocker cover (right bank). Refer to EM-51, "
Component".
7. Remove engine coolant temperature sensor as necessary. CAUTION:
Be careful not to damage engi ne coolant temperature sensor.
8. Remove water outlet, heater pipe, water bypass hoses and water pipe.
INSTALLATION
1. Harness bracket 2. Water hose 3. Water bypass hose
4. Engine coolant temperature sensor 5. Gasket 6. Water outlet
7. Heater hose 8. Water pipe 9. Radiator hose (upper)
10. Heater pipe 11. Washer 12. O-ring
SBIA0484E
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CO-30
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WATER OUTLET AND WATER PIPING
Note the following, and install in the reverse order of removal.
 Securely insert each hose, and install clamp at a pos
ition where it does not interfere with the pipe bulge.
 When inserting water pipe into water outlet, apply neutral detergent to O-ring.
INSPECTION AFTER INSTALLATION
 Check for leaks of engine coolant using the radiator cap tester adapter (commercial service tool) and the
radiator cap tester (commercial service tool). Refer to CO-10, "
Inspection".
 Start and warm up the engine. Visually make sure that there is no leaks of engine coolant.
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SERVICE DATA AND SPECIFICATIONS (SDS)
CO-31
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SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and LimitINFOID:0000000001325862
ENGINE COOLANT CAPACITY (APPROXIMATE)
Unit: (US qt, Imp qt)
RADIATOR
Unit: kPa (kg/cm2, psi)
THERMOSTAT
Engine coolant capacity [With reservoir tank (“MAX” level)] 8.6 (9-1/8, 7- 5/8)
Reservoir tank engine coolant capacity (At “MAX” level) 0.8 (7/8, 3/4)
Cap relief pressure
Standard 78 - 98 (0.8 - 1.0, 11 - 14)
Limit 59 (0.6, 9)
Leakage testing pressure 157 (1.6, 23)
Valve opening temperature 76 - 79 °C (169 - 174 °F)
Maximum valve lift 8.6 mm/90 °C (0.339 in/194 °F)
Valve closing temperature 71 °C (160 °F)
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CO-32
< SERVICE INFORMATION >[VK45DE]
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint S
ystem (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612913
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
 To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISS AN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
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PREPARATIONCO-33
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PREPARATION
Special Service ToolINFOID:0000000001325864
The actual shapes of Kent-Moore
tools may from those of special service tools illustrated here.
Commercial Service ToolINFOID:0000000001325865
Tool number
(Kent-Moore No.)
Tool name Description
KV99103510
(—)
Radiator plate pliers A Installing radiator upper and lower tanks
KV99103520
(—)
Radiator plate pliers B Removing radiator upper and lower tanks
S-NT224
S-NT225
Tool name
Description
Power tool Loosening nuts and bolts
Radiator cap tester Checking radiator and radiator cap
Radiator cap tester adapter
(J33984-A) Adapting radiator cap tester to radiator cap
and thermostat housing filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
PBIC0190E
PBIC1982E
S-NT564
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CO-34
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OVERHEATING CAUSE ANALYSIS
OVERHEATING CAUSE ANALYSIS
Troubleshooting ChartINFOID:0000000001325866
Symptom Check items
Cooling sys-
tem parts
malfunction Poor heat transfer
Water pump malfunction Worn or loose drive belt
—
Thermostat and water con-
trol valve stuck closed
—
Damaged fins Dust contamination or pa-
per clogging
Physical damage
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 density —
Insufficient engine coolant Engine coolant leaksCooling hose
Loose clamp
Cracked hose
Water pump Poor sealing
Radiator cap Loose
Poor sealing
Radiator O-ring for da
mage, 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
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OVERHEATING CAUSE ANALYSISCO-35
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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 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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CO-36
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COOLING SYSTEM
COOLING SYSTEM
Cooling CircuitINFOID:0000000001325867
System ChartINFOID:0000000001325868
PBIC4865E
PBIC4866E
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