Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti G35 2006-2007 Approved G35-V35-Sedan-2007 co
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ENGINE
A
ENGINE COOLING SYSTEM
SECTION CO CO
C
D
E
CONTENTS
FUNCTION DIAGNOSIS .............................. 2
. ON-VEHICLE REPAIR ................................ 14
. F
DESCRIPTION ................................................... 2
. RADIATOR ........................................................ 14
Engine Cooling System .......................................... 2
. Exploded View ........................................................14
. G
Engine Cooling System Schematic ........................ 2. Removal and Installation ........................................14 .
Inspection ...............................................................16
.
SYMPTOM DIAGNOSIS .............................. 3
.
COOLING FAN .................................................. 17 H
OVERHEATING CAUSE ANALYSIS ................. 3
. Exploded View ........................................................17
.
Troubleshooting Chart ............................................. 3
. Removal and Installation ........................................17 .
Inspection ...............................................................17
. I
PRECAUTION .............................................. 5
. Disassembly and Assembly ....................................17 .
PRECAUTIONS .................................................. 5
. Inspection ...............................................................18
.
Precaution for Supplemental Restraint System WATER PUMP .................................................. 19 J
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Exploded View ........................................................19
.
SIONER" .................................................................. 5
. Removal and Installation ........................................19 .
Liquid Gasket .......................................................... 5
. Inspection ...............................................................21
. K
PREPARATION ........................................... 7
. WATER INLET AND THERMOSTAT ASSEM-
PREPARATION .................................................. 7
. BLY .................................................................... 22
L
Exploded View ........................................................22
.
Special Service Tools ............................................. 7
.
Removal and Installation ........................................22 .
Commercial Service Tools ...................................... 7
.
Inspection ...............................................................23
.
ON-VEHICLE MAINTENANCE .................... 8
. M
WATER OUTLET AND WATER PIPING .......... 24
ENGINE COOLANT ........................................... 8
. Exploded View ........................................................24
.
Inspection ................................................................. 8
. Removal and Installation ........................................24 . N
Draining .................................................................... 8
. Inspection ...............................................................25
.
Refilling .................................................................... 9
.
Flushing .................................................................. 10
.
SERVICE DATA AND SPECIFICATIONS
(SDS) ........................................................... 26
. O
RADIATOR ........................................................12
.
SERVICE DATA AND SPECIFICATIONS
RADIATOR CAP ....................................................... 12
. (SDS) ................................................................. 26 P
RADIATOR CAP : Inspection ................................. 12 . Periodical Maintenance Specification ...................26 .
Radiator ..................................................................26
.
RADIATOR ............................................................... 12
.
Thermostat .............................................................26
.
RADIATOR : Inspection ......................................... 12 .
Revision: October 2006 CO-1 2007 G35 Sedan
DESCRIPTION
< FUNCTION DIAGNOSIS >
FUNCTION DIAGNOSIS
DESCRIPTION
Engine Cooling System INFOID:0000000000956331
JPBIA0248GB
Engine Cooling System Schematic INFOID:0000000000956332
JPBIA0249GB
Revision: October 2006 CO-2 2007 G35 Sedan
OVERHEATING CAUSE ANALYSIS
< SYMPTOM DIAGNOSIS >
SYMPTOM DIAGNOSIS A
OVERHEATING CAUSE ANALYSIS
Troubleshooting Chart INFOID:0000000000956333
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 leaks
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 leaks into cool-
Overflowing reservoir tank Cylinder head gasket deteri- M
ing system
oration
N
O
P
Revision: October 2006 CO-3 2007 G35 Sedan
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: October 2006 CO-4 2007 G35 Sedan
PRECAUTIONS
< PRECAUTION >
PRECAUTION A
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT CO
PRE-TENSIONER" INFOID:0000000000956334
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 and SB section of this Service Man-
ual.
WARNING: E
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