Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Frontier 2006-2009 Approved Nissan Frontier 2006 CO
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B ENGINE
A
CO
SECTION
ENGINE COOLING SYSTEM C
D
E
CONTENTS
QR WATER PUMP ......................................................... 19. F
Removal and Installation ....................................... 19 .
PRECAUTIONS ......................................................... 3
. REMOVAL .......................................................... 19
.
Precautions for Supplemental Restraint System INSPECTION AFTER REMOVAL ...................... 20 . G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- INSTALLATION .................................................. 20 .
SIONER" ................................................................. 3
. INSPECTION AFTER INSTALLATION ............... 20 .
Precautions for Liquid Gasket ................................. 3 . THERMOSTAT AND THERMOSTAT HOUSING ..... 21 .
REMOVAL OF LIQUID GASKET SEALING ......... 3 . H
Removal and Installation Thermostat .................... 21 .
LIQUID GASKET APPLICATION PROCEDURE 3 ..... REMOVAL .......................................................... 21
.
PREPARATION .......................................................... 5
. INSPECTION AFTER REMOVAL ...................... 21 .
Special Service Tools .............................................. 5
. INSTALLATION .................................................. 22 . I
Commercial Service Tools ....................................... 5 . INSPECTION AFTER INSTALLATION ............... 22 .
OVERHEATING CAUSE ANALYSIS ......................... 6 . Removal and Installation Water Pump and Ther-
Troubleshooting Chart ............................................. 6
. mostat Housing ...................................................... 23
. J
COOLING SYSTEM ................................................... 8 . REMOVAL .......................................................... 23
.
Cooling Circuit ......................................................... 8
. INSTALLATION .................................................. 23 .
System Chart .......................................................... 9
. INSPECTION AFTER INSTALLATION ............... 23 .
ENGINE COOLANT ................................................. 10 . K
WATER CONTROL VALVE ...................................... 25 .
System Check ....................................................... 10
. Removal and Installation ....................................... 25 .
CHECKING COOLING SYSTEM HOSES ......... 10 . REMOVAL .......................................................... 25
.
CHECKING RESERVOIR LEVEL ...................... 10 . INSPECTION AFTER REMOVAL ...................... 26 . L
CHECKING COOLING SYSTEM FOR LEAKS... 10 INSTALLATION .................................................. 26 .
CHECKING RESERVOIR CAP .......................... 10 . WATER OUTLET AND WATER PIPING .................. 27 .
CHECKING RADIATOR ......................................11 . Removal and Installation ....................................... 27 . M
Changing Engine Coolant ......................................11 . REMOVAL .......................................................... 27
.
DRAINING ENGINE COOLANT .........................11 . INSTALLATION .................................................. 27 .
REFILLING ENGINE COOLANT ....................... 12 . INSPECTION AFTER INSTALLATION ............... 28 .
FLUSHING COOLING SYSTEM ........................ 13 . SERVICE DATA AND SPECIFICATIONS (SDS) ..... 29 .
RADIATOR ............................................................... 15
. Standard and Limit ................................................. 29
.
Removal and Installation ....................................... 15 . ENGINE COOLANT CAPACITY (APPROXI-
REMOVAL .......................................................... 15
. MATE) ................................................................. 29
.
INSTALLATION .................................................. 17. RESERVOIR CAP .............................................. 29 .
INSPECTION AFTER INSTALLATION .............. 17 . THERMOSTAT ................................................... 29 .
COOLING FAN ........................................................ 18
.
Removal and Installation (Crankshaft driven type) 18 ...
REMOVAL .......................................................... 18
.
VQ
INSPECTION AFTER REMOVAL ...................... 18 . PRECAUTIONS ....................................................... 30
.
INSTALLATION .................................................. 18. Precautions for Supplemental Restraint System
INSPECTION AFTER INSTALLATION .............. 18 . (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
Revision: September 2005 CO-1 2006 Frontier
SIONER" ................................................................ 30
. REMOVAL ...........................................................47
.
Precautions for Liquid Gasket ............................... 30 . INSPECTION AFTER REMOVAL .......................47 .
REMOVAL OF LIQUID GASKET SEALING ....... 30 . INSTALLATION ...................................................47 .
LIQUID GASKET APPLICATION PROCEDURE 30 ... INSPECTION AFTER INSTALLATION ...............47 .
PREPARATION ........................................................ 32
. Removal and Installation (Motor driven type) ........48 .
Special Service Tools ............................................ 32. REMOVAL ...........................................................48
.
Commercial Service Tools ..................................... 33 . INSTALLATION ...................................................48 .
OVERHEATING CAUSE ANALYSIS ....................... 34 . WATER PUMP ..........................................................49.
Troubleshooting Chart ........................................... 34 . Removal and Installation ........................................49 .
COOLING SYSTEM ................................................. 36 . REMOVAL ...........................................................49
.
Cooling Circuit ....................................................... 36
. INSPECTION AFTER REMOVAL .......................51 .
System Chart ......................................................... 37
. INSTALLATION ...................................................51 .
ENGINE COOLANT ................................................. 38 . INSPECTION AFTER INSTALLATION ...............52 .
System Check ....................................................... 38
. WATER INLET AND THERMOSTAT ASSEMBLY ...54
CHECKING COOLING SYSTEM HOSES .......... 38 . Removal and Installation ........................................54 .
CHECKING RESERVOIR LEVEL ...................... 38 . REMOVAL ...........................................................54
.
CHECKING COOLING SYSTEM FOR LEAKS ... 38 INSPECTION AFTER REMOVAL .......................54 .
CHECKING RESERVOIR CAP .......................... 38 . INSTALLATION ...................................................55 .
CHECKING RADIATOR ..................................... 39 . INSPECTION AFTER INSTALLATION ...............55 .
Changing Engine Coolant ...................................... 39 . WATER OUTLET AND WATER PIPING ..................56 .
DRAINING ENGINE COOLANT ......................... 39 . Removal and Installation ........................................56 .
REFILLING ENGINE COOLANT ........................ 41 . REMOVAL ...........................................................56
.
FLUSHING COOLING SYSTEM ........................ 42 . INSTALLATION ...................................................56 .
RADIATOR ............................................................... 44
. INSPECTION AFTER INSTALLATION ...............56 .
Removal and Installation ....................................... 44 . SERVICE DATA AND SPECIFICATIONS (SDS) .....58 .
REMOVAL .......................................................... 44
. Standard and Limit .................................................58.
INSTALLATION ................................................... 46. ENGINE COOLANT CAPACITY (APPROXI-
INSPECTION AFTER INSTALLATION ............... 46 . MATE) .................................................................58
.
ENGINE COOLING FAN .......................................... 47 . RADIATOR ..........................................................58
.
Removal and Installation (Crankshaft driven type)... 47 THERMOSTAT ....................................................58 .
Revision: September 2005 CO-2 2006 Frontier
PRECAUTIONS
[QR]
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EBS00T38
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along CO
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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual. C
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. D
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. E
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. F
Precautions for Liquid Gasket EBS00NHD
REMOVAL OF LIQUID GASKET SEALING
G
q After removing nuts and bolts, separate the mating surface, using Tool and remove old liquid gasket seal-
ing.
Tool number : KV10111100 (J-37228)
H
CAUTION:
Be careful not to damage the mating surfaces.
q Tap Tool to insert it, and then slide it by tapping on the side as I
shown.
q In areas where Tool is difficult to use, use plastic hammer to
lightly tap the parts, to remove it. J
CAUTION:
If for some unavoidable reason suitable tool such as screw-
driver is used, be careful not to damage the mating sur- WBIA0566E
K
faces.
LIQUID GASKET APPLICATION PROCEDURE
1. Remove old liquid gasket adhering to the liquid gasket applica- L
tion surface and the mating surface, Using scraper.
q Remove liquid gasket completely from the groove of the liquid
gasket application surface, bolts, and bolt holes. M
2. Thoroughly clean the mating surfaces and remove adhering
moisture, grease and foreign materials.
PBIC0003E
3. Attach liquid gasket tube to Tool.
Revision: September 2005 CO-3 2006 Frontier
PRECAUTIONS
[QR]
Tool number : WS39930000 ( -- )
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "Recommended Chemical Products and Sealants" .
4. Apply liquid gasket without breaks to the specified location with
the specified dimensions.
q If there is a groove for the liquid gasket application, apply liq-
uid gasket to the groove.
WBIA0567E
q As for the bolt holes, normally apply liquid gasket inside the
holes. Occasionally, it should be applied outside the holes.
Make sure to read the text of service manual.
q Within five minutes of liquid gasket application, install the mat-
ing component.
q If liquid gasket protrudes, wipe it off immediately.
q Do not retighten nuts or bolts after the installation.
q After 30 minutes or more have passed from the installation, fill
engine oil and engine coolant.
CAUTION: SEM159F
If there are specific instructions in this manual, observe them.
Revision: September 2005 CO-4 2006 Frontier
PREPARATION
[QR]
PREPARATION PFP:00002
A
Special Service Tools EBS00NHE
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number Description
CO
(Kent-Moore No.)
Tool name
EG17650301 Adapting radiator cap tester to radiator cap
(J-33984-A) and radiator filler neck C
Radiator cap tester adapter a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in) D
S-NT564
KV10111100 Removing chain tensioner cover and water E
(J-37228) pump cover
Seal cutter
F
NT046
G
WS39930000 Pressing the tube of liquid gasket
( -- )
Tube presser
H
S-NT052
I
-- Checking concentration of ethylene glycol in
(J-23688) engine coolant
Engine coolant refractometer J
K
WBIA0539E
Commercial Service Tools EBS00NGN
L
Tool name Description
Power tool Loosening nuts and bolts
M
PBIC0190E
Radiator cap tester Checking radiator and radiator cap
PBIC1982E
Revision: September 2005 CO-5 2006 Frontier
OVERHEATING CAUSE ANALYSIS
[QR]
OVERHEATING CAUSE ANALYSIS PFP:00012
Troubleshooting Chart EBS00NGO
Symptom Check items
Water pump malfunction Worn or loose drive belt
Thermostat and water con-
--
trol valve stuck closed
Dust contamination or
Poor heat transfer --
Damaged fins paper clogging
Physical damage
Clogged radiator cooling Excess foreign material
tube (rust, dirt, sand, etc.)
Cooling fan does not oper-
ate
Reduced air flow High resistance to fan rota- Fan assembly --
tion
Damaged fan blades
Damaged radiator shroud -- -- --
Cooling sys- Improper engine coolant
-- -- --
tem parts mixture ratio
malfunction Poor engine coolant quality -- Engine coolant viscosity --
Loose clamp
Cooling hose
Cracked hose
Water pump Poor sealing
Loose
Radiator cap
Poor sealing
Engine coolant leaks
O-ring for damage, deterio-
Insufficient engine coolant ration or improper fitting
Radiator
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Cylinder head deterioration
Exhaust gas leaks into
Overflowing reservoir tank Cylinder head gasket dete-
cooling system
rioration
Revision: September 2005 CO-6 2006 Frontier
OVERHEATING CAUSE ANALYSIS
[QR]
Symptom Check items
A
High engine rpm under no
load
Driving in low gear for
Abusive driving CO
extended time
Driving at extremely high
speed
-- Overload on engine C
Power train system mal-
function
Installed improper size
Except cool- --
wheels and tires D
ing system
parts mal- Dragging brakes
function
Improper ignition timing
E
Blocked bumper --
Installed car brassiere
Blocked radiator grille Mud contamination or F
Blocked or restricted air paper clogging --
flow
Blocked radiator --
Blocked condenser G
Blocked air flow
Installed large fog lamp
H
I
J
K
L
M
Revision: September 2005 CO-7 2006 Frontier
COOLING SYSTEM
[QR]
COOLING SYSTEM PFP:21020
Cooling Circuit EBS00NGP
PBIC3008E
Revision: September 2005 CO-8 2006 Frontier
COOLING SYSTEM
[QR]
System Chart EBS00NGQ
A
CO
C
D
E
F
G
H
PBIC3009E I
J
K
L
M
Revision: September 2005 CO-9 2006 Frontier
ENGINE COOLANT
[QR]
ENGINE COOLANT PFP:KQ100
System Check EBS00NHF
WARNING:
q Never remove the radiator cap or reservoir tank cap when the engine is hot. Serious burns could
occur from high pressure fluid escaping from the radiator.
q Wrap a thick cloth around the cap. Slowly push down and turn it a quarter turn to allow built-up
pressure to escape. Carefully remove the cap by pushing down and turning it all the way.
CHECKING COOLING SYSTEM HOSES
Check hoses for the following:
q Improper attachment
q Leaks
q Cracks
q Damage
q Loose connections
q Chafing
q Deterioration
CHECKING RESERVOIR LEVEL
q Check if the reservoir tank coolant level is within MIN to MAX
when the engine is cool.
q Adjust engine coolant level as necessary.
SMA412B
CHECKING COOLING SYSTEM FOR LEAKS
To check for leakage, apply pressure to the cooling system using
Tool.
Tool number : EG17650301 (J-33984-A)
Testing pressure : 137 kPa (1.4 kg/cm2 , 20 psi)
WARNING:
Never remove the radiator cap when the engine is hot. Serious
burns could occur from high pressure coolant escaping from
the radiator.
CAUTION: WBIA0568E
Higher pressure than specified may cause radiator damage.
CHECKING RESERVOIR CAP
1. Inspect the reservoir cap.
q Replace the cap if the metal plunger cannot be seen around the edge of the black rubber gasket.
q Replace the cap if deposits of waxy residue or other foreign material are on the black rubber gasket or
the metal retainer.
NOTE:
Thoroughly wipe out the reservoir filler neck to remove any waxy residue or foreign material.
Revision: September 2005 CO-10 2006 Frontier
ENGINE COOLANT
[QR]
2. Pull the negative-pressure valve to open it and check that it
closes completely when released. A
q Check that there is no dirt or damage on the valve seat of the
reservoir cap negative-pressure valve.
q Check that there are no abnormalities in the opening and CO
closing conditions of the negative-pressure valve.
C
SMA967B
D
3. Check reservoir cap relief pressure using Tool.
Tool number : EG17650301 (J-33984-A)
E
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