Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Quest 2004-2009 Approved Nissan Quest 2006 CO

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B ENGINE

CO
SECTION
ENGINE COOLING SYSTEM C

E
CONTENTS
PRECAUTIONS ......................................................... 2
. COOLING FAN ......................................................... 16
. F
Precautions for Supplemental Restraint System Removal and Installation ....................................... 16 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- REMOVAL .......................................................... 16
.
SIONER" ................................................................. 2
. INSTALLATION .................................................. 16 . G
Precautions for Liquid Gasket ................................. 2 . INSPECTION AFTER INSTALLATION ............... 16 .
REMOVAL OF LIQUID GASKET SEALING ......... 2 . Disassembly and Assembly of Radiator Fan ......... 16 .
LIQUID GASKET APPLICATION PROCEDURE 2 ..... DISASSEMBLY .................................................. 16 .
H
PREPARATION .......................................................... 4
. ASSEMBLY ........................................................ 16.
Special Service Tools .............................................. 4
. WATER PUMP ......................................................... 17.
Commercial Service Tools ....................................... 4 . Removal and Installation ....................................... 17 .
OVERHEATING CAUSE ANALYSIS ......................... 5 . REMOVAL .......................................................... 17
. I
Troubleshooting Chart ............................................. 5
. INSPECTION AFTER REMOVAL ...................... 19 .
COOLING SYSTEM ................................................... 6 . INSTALLATION .................................................. 19 .
Cooling Circuit ......................................................... 6
. INSPECTION AFTER INSTALLATION ............... 21 . J
System Drawing ...................................................... 7
. THERMOSTAT AND THERMOSTAT HOUSING ..... 22 .
ENGINE COOLANT ................................................... 8 . Removal and Installation ....................................... 22 .
System Check ......................................................... 8
. REMOVAL .......................................................... 22
.
K
CHECKING COOLING SYSTEM HOSES ........... 8 . INSPECTION AFTER REMOVAL ...................... 22 .
CHECKING RESERVOIR LEVEL ........................ 8 . INSTALLATION .................................................. 23 .
CHECKING COOLING SYSTEM FOR LEAKS..... 8 INSPECTION AFTER INSTALLATION ............... 23 .
CHECKING RADIATOR CAP ............................... 8 . WATER OUTLET AND WATER PIPING .................. 24 . L
CHECKING RADIATOR ....................................... 9 . Removal and Installation ....................................... 24 .
Changing Engine Coolant ....................................... 9 . REMOVAL .......................................................... 24
.
DRAINING ENGINE COOLANT .......................... 9 . INSTALLATION .................................................. 24 . M
REFILLING ENGINE COOLANT ........................11 . INSPECTION AFTER INSTALLATION ............... 24 .
FLUSHING COOLING SYSTEM ........................ 12 . SERVICE DATA AND SPECIFICATIONS (SDS) ..... 25 .
RADIATOR ............................................................... 14
. Standard and Limit ................................................. 25
.
Removal and Installation ....................................... 14 . ENGINE COOLANT CAPACITY (APPROXI-
REMOVAL .......................................................... 14
. MATE) ................................................................. 25
.
INSPECTION AFTER REMOVAL ...................... 15 . THERMOSTAT ................................................... 25 .
INSTALLATION .................................................. 15. RADIATOR ......................................................... 25
.
INSPECTION AFTER INSTALLATION .............. 15 .

Revision: July 2006 CO-1 2006 Quest
PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EBS00PSL

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along
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.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
q To avoid rendering the SRS inoperative, 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 per-
formed by an authorized NISSAN/INFINITI dealer.
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
q Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Liquid Gasket EBS00PSM

REMOVAL OF LIQUID GASKET SEALING
q After removing the bolts and nuts, separate the mating surface
using the Tool and remove the sealant.
Tool number : KV10111100 (J-37228)
CAUTION:
Be careful not to damage the mating surfaces.
q In areas where the Tool is difficult to use, use a plastic hammer
to lightly tap (1) the Tool where the sealant is applied. Use a
plastic hammer to slide the Tool (2) by tapping on the side.
CAUTION:
If for some unavoidable reason a tool such as a flat-bladed WBIA0566E

screwdriver is used, be careful not to damage the mating sur-
faces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using a scraper, remove the old sealant adhering to the mating
surfaces.
q Remove the sealant completely from the groove of the mating
surfaces, bolts, and bolt holes.
2. Thoroughly clean the mating surfaces and remove all adhering
moisture, grease and foreign material.
3. Attach the sealant tube to Tool.
q Use Genuine RTV Silicone Sealant or equivalent. Refer to GI-
44, "RECOMMENDED CHEMICAL PRODUCTS AND SEAL-
ANTS" . PBIC0003E

Revision: July 2006 CO-2 2006 Quest
PRECAUTIONS

4. Apply the sealant without breaks to the specified location with
the specified dimensions using Tool. A
Tool number : WS39930000 (

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