Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Altima 2006-2009 Approved TB Nissan Altima 2009 CO

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ENGINE

CO
A

CO
SECTION
ENGINE COOLING SYSTEM C

E
CONTENTS
QR25DE Removal and Installation ........................................19
. F

PRECAUTION .............................................. 3
. THERMOSTAT AND THERMOSTAT HOUS-
ING .................................................................... 21 G
PRECAUTIONS .................................................. 3
. Removal and Installation ........................................21
.
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- WATER CONTROL VALVE .............................. 23
SIONER" .................................................................. 3
. Removal and Installation ........................................23
. H
Necessary for Steering Wheel Rotation After Bat-
tery Disconnect ........................................................ 3
. SERVICE DATA AND SPECIFICATIONS
Precaution for Liquid Gasket .................................... 3 . (SDS) ........................................................... 25
. I

PREPARATION ........................................... 5
. SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................. 25
PREPARATION .................................................. 5
. Capacity ..................................................................25
. J
Special Service Tool ................................................ 5
. Thermostat .............................................................25
.
Commercial Service Tool ......................................... 5
. Water Control Valve ...............................................25 .
Radiator ..................................................................25
. K
FUNCTION DIAGNOSIS .............................. 7
. VQ35DE
COOLING SYSTEM ........................................... 7
.
PRECAUTION ............................................. 26
. L
Cooling Circuit .......................................................... 7
.
Schematic ................................................................ 8
. PRECAUTIONS ................................................. 26
Precaution for Supplemental Restraint System
OVERHEATING CAUSE ANALYSIS ................. 9
. M
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
Troubleshooting Chart .............................................. 9
.
SIONER" ................................................................26
.
ON-VEHICLE MAINTENANCE ................... 11
. Necessary for Steering Wheel Rotation After Bat-
tery Disconnect .......................................................26
. N
ENGINE COOLANT ..........................................11
. Precaution for Liquid Gasket ..................................26 .
System Inspection .................................................. 11
.
Changing Engine Coolant ...................................... 12
. PREPARATION .......................................... 28
.
O
ON-VEHICLE REPAIR ................................ 15
. PREPARATION ................................................. 28
Special Service Tool ...............................................28
.
RADIATOR ........................................................15
. Commercial Service Tool .......................................28
. P
Removal and Installation ........................................ 15
.
FUNCTION DIAGNOSIS ............................. 30
.
COOLING FAN ..................................................17
.
Removal and Installation ........................................ 17
. COOLING SYSTEM .......................................... 30
Disassembly and Assembly of Cooling Fan ........... 18 . Cooling Circuit ........................................................30
.
Schematic ...............................................................31
.
WATER PUMP ..................................................19
.

Revision: July 2008 CO-1 2009 Altima
OVERHEATING CAUSE ANALYSIS ............... 32
. WATER PUMP .................................................. 42
.
Troubleshooting Chart ........................................... 32
. Removal and Installation ........................................ 42
.

ON-VEHICLE MAINTENANCE .................. 34
. THERMOSTAT AND THERMOSTAT HOUS-
ING .................................................................... 46
.
ENGINE COOLANT .......................................... 34
. Removal and Installation ........................................ 46
.
System Inspection ................................................. 34
.
Changing Engine Coolant ...................................... 35
. WATER OUTLET AND WATER PIPING ......... 48
.
Removal and Installation ........................................ 48
.
ON-VEHICLE REPAIR ............................... 38
.
SERVICE DATA AND SPECIFICATIONS
RADIATOR ....................................................... 38
. (SDS) .......................................................... 50
Removal and Installation ....................................... 38
.
SERVICE DATA AND SPECIFICATIONS
COOLING FAN ................................................. 40
.
(SDS) ................................................................ 50
.
Removal and Installation ....................................... 40
.
Capacity ................................................................. 50
.
Disassembly and Assembly of Cooling Fan .......... 41 .
Thermostat ............................................................. 50
.
Radiator ................................................................. 50
.

Revision: July 2008 CO-2 2009 Altima
PRECAUTIONS
< PRECAUTION > [QR25DE]

PRECAUTION A
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT CO
PRE-TENSIONER" INFOID:0000000004205436

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 SR and SB section of this Service Man-
ual.
WARNING: E

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