Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti EX35 2008 Approved files CO
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ENGINE
A
ENGINE COOLING SYSTEM
SECTION CO CO
C
D
E
CONTENTS
FUNCTION DIAGNOSIS .............................. 2
. ON-VEHICLE REPAIR ................................ 13
. F
DESCRIPTION ................................................... 2
. RADIATOR ........................................................ 13
Engine Cooling System .......................................... 2
. Exploded View ........................................................13
. G
Engine Cooling System Schematic ........................ 2. Removal and Installation ........................................13 .
Inspection ...............................................................15
.
SYMPTOM DIAGNOSIS .............................. 3
.
COOLING FAN .................................................. 16 H
OVERHEATING CAUSE ANALYSIS ................. 3
. Exploded View ........................................................16
.
Troubleshooting Chart ............................................. 3
. Removal and Installation ........................................16 .
Disassembly and Assembly ....................................16 . I
PRECAUTION .............................................. 5
. Inspection ...............................................................17
.
PRECAUTIONS .................................................. 5
. WATER PUMP .................................................. 18
Precaution for Supplemental Restraint System Exploded View ........................................................18
. J
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Removal and Installation ........................................18 .
SIONER" .................................................................. 5
. Inspection ...............................................................20
.
K
PREPARATION ........................................... 6
. WATER INLET AND THERMOSTAT ASSEM-
PREPARATION .................................................. 6
. BLY .................................................................... 21
Exploded View ........................................................21
.
Commercial Service Tools ...................................... 6
. L
Removal and Installation ........................................21 .
ON-VEHICLE MAINTENANCE .................... 7
. Inspection ...............................................................22
.
ENGINE COOLANT ........................................... 7
. WATER OUTLET AND WATER PIPING .......... 23 M
Inspection ................................................................. 7
. Exploded View ........................................................23
.
Draining .................................................................... 7
. Removal and Installation ........................................23 .
Refilling .................................................................... 8
. Inspection ...............................................................24
. N
Flushing .................................................................... 9
.
SERVICE DATA AND SPECIFICATIONS
RADIATOR ........................................................11
. (SDS) ........................................................... 25
.
O
RADIATOR CAP ....................................................... 11
. SERVICE DATA AND SPECIFICATIONS
RADIATOR CAP : Inspection ................................. 11 . (SDS) ................................................................. 25
Periodical Maintenance Specification ...................25 . P
RADIATOR ............................................................... 11
.
Radiator ..................................................................25
.
RADIATOR : Inspection ......................................... 11 .
Thermostat .............................................................25
.
Revision: 2007 November CO-1 2008 EX35
DESCRIPTION
< FUNCTION DIAGNOSIS >
FUNCTION DIAGNOSIS
DESCRIPTION
Engine Cooling System INFOID:0000000003139274
JPBIA1830GB
Engine Cooling System Schematic INFOID:0000000003139275
PBIC5028E
Revision: 2007 November CO-2 2008 EX35
OVERHEATING CAUSE ANALYSIS
< SYMPTOM DIAGNOSIS >
SYMPTOM DIAGNOSIS A
OVERHEATING CAUSE ANALYSIS
Troubleshooting Chart INFOID:0000000003139276
CO
Symptom Check items
C
Water pump malfunction Worn or loose drive belt
Thermostat stuck closed --
Dust contamination or pa- D
Poor heat transfer Damaged fins per clogging --
Physical damage
Clogged radiator cooling Excess foreign material E
tube (rust, dirt, sand, etc.)
Cooling fan does not oper-
ate F
Reduced air flow High resistance to fan rota- Fan assembly --
tion
Damaged fan blades G
Damaged radiator shroud -- -- --
Improper engine coolant
Cooling sys- -- -- -- H
mixture ratio
tem parts
malfunction Poor engine coolant quality -- Engine coolant density --
Loose clamp
Cooling hose I
Cracked hose
Water pump Poor sealing
Loose J
Radiator cap
Poor sealing
Engine coolant leakage
O-ring for damage, deterio-
Insufficient engine coolant ration or improper fitting K
Radiator
Cracked radiator tank
Cracked radiator core
L
Reservoir tank Cracked reservoir tank
Cylinder head deterioration
Exhaust gas leakage into
Overflowing reservoir tank Cylinder head gasket deteri- M
cooling system
oration
N
O
P
Revision: 2007 November CO-3 2008 EX35
OVERHEATING CAUSE ANALYSIS
< SYMPTOM DIAGNOSIS >
Symptom Check items
High engine rpm under no
load
Driving in low gear for ex-
Abusive driving
tended time
Driving at extremely high
speed
-- Overload on engine
Powertrain system malfunc-
tion
Installed improper size
Except cool- --
wheels and tires
ing system
parts mal- Dragging brakes
function
Improper ignition timing
Blocked bumper --
Installed car brassiere
Blocked radiator grille Mud contamination or paper
Blocked or restricted air clogging --
flow
Blocked radiator --
Blocked condenser
Blocked air flow
Installed large fog lamp
Revision: 2007 November CO-4 2008 EX35
PRECAUTIONS
< PRECAUTION >
PRECAUTION A
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT CO
PRE-TENSIONER" INFOID:0000000003657648
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along C
with a front seat belt, helps to reduce the risk or severity 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 whether the front occupants are belted or unbelted. D
Information necessary to service the system safely is included in the "SRS AIRBAG" and "SEAT BELT" of this
Service Manual.
WARNING: E
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