2008 NISSAN TEANA engine

CHG-22
< ON-VEHICLE REPAIR >
ALTERNATOR
Type: A003TJ1791
Removal and InstallationINFOID:0000000003860539
REMOVAL
1. Disconnect the negative battery terminal.
2. Remove engine cover.
3. Remove front wheel and tire (RH).
4. Remove splash guard (RH) Refer to EXT-22, "
FENDER PROTECTOR : Exploded View".
5. Remove air cleaner and air duct assembly. Refer to EM-26, "
Removal and Installation".
6. Remove drive belt. Refer to EM-25, "
Removal and Installation".
7. Remove A/C compressor. Refer to HA-36, "
Removal and Installation".
8. Remove idler pulley.
9. Disconnect the oil pressure switch.
10. Disconnect the alternator harness connectors.
11. Remove the alternator bolt and nuts.
12. Slide the alternator out and remove.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
JPMIA0859GB
1. Rear bearing 2. Rotor assembly 3. Retainer
4. Front bearing 5. Front bracket assembly 6. Through bolt
7. Pulley 8. Pulley nut 9. Stator assembly
10. IC voltage regulator assembly 11. Diode assembly 12. Rear bracket assembly
13. Terminal set
Refer to GI-4, "
Components" for symbols in the figure.

CO-1
ENGINE
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SECTION CO
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CONTENTS
ENGINE COOLING SYSTEM
FUNCTION DIAGNOSIS .. .............................2
DESCRIPTION ............................................... .....2
Engine Cooling System ..................................... ......2
Engine Cooling System Schematic .........................2
SYMPTOM DIAGNOSIS ...............................3
OVERHEATING CAUSE ANALYSIS ............. .....3
Troubleshooting Chart ........................................ ......3
PRECAUTION ...............................................5
PRECAUTIONS .............................................. .....5
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
5
Liquid Gasket ...........................................................5
PREPARATION ............................................7
PREPARATION .............................................. .....7
Special Service Tool ........................................... ......7
Commercial Service Tools .......................................7
ON-VEHICLE MAINTENANCE .....................8
ENGINE COOLANT ....................................... .....8
Inspection ............................................................ ......8
Draining .....................................................................8
Refilling .....................................................................9
Flushing ...................................................................10
RADIATOR .........................................................12
RADIATOR CAP .................................................... ....12
RADIATOR CAP : Inspection ..................................12
RADIATOR ............................................................ ....12
RADIATOR : Inspection ..........................................12
ON-VEHICLE REPAIR .................................13
RADIATOR ....... ................................ .................13
Exploded View ..................................................... ....13
Removal and Installation .........................................13
Inspection ................................................................15
COOLING FAN ..................................................16
Exploded View .........................................................16
Removal and Installation .........................................16
Disassembly and Assembly .....................................17
Inspection ................................................................17
WATER PUMP ..................................................18
Exploded View .........................................................18
Removal and Installation .........................................18
Inspection ................................................................21
WATER INLET AND THERMOSTAT ASSEM-
BLY ....................................................................
23
Exploded View .........................................................23
Removal and Installation .........................................23
Inspection ................................................................24
WATER OUTLET AND WATER PIPING ..........25
Exploded View .........................................................25
Removal and Installation .........................................25
Inspection ................................................................26
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .............................................
27
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
27
Periodical Maintenance Specification .................. ....27
Radiator ...................................................................27
Thermostat ..............................................................27

CO-2
< FUNCTION DIAGNOSIS >
DESCRIPTION
FUNCTION DIAGNOSIS
DESCRIPTION
Engine Cooling SystemINFOID:0000000003793159
Engine Cooling System SchematicINFOID:0000000003793160
JPBIA1682GB
JPBIA1683GB

OVERHEATING CAUSE ANALYSIS
CO-3
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
OVERHEATING CAUSE ANALYSIS
Troubleshooting ChartINFOID:0000000003793161
Symptom Check items
Cooling sys-
tem parts
malfunctionPoor heat transferWater pump malfunction Worn or loose drive belt
— Thermostat stuck closed —
Damaged finsDust contamination or pa-
per clogging
Physical damage
Clogged radiator cooling
tubeExcess foreign material
(rust, dirt, sand, etc.)
Reduced air flowCooling fan does not oper-
ate
Fan assembly — High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud — — —
Improper engine coolant
mixture ratio———
Poor engine coolant quality — Engine coolant density —
Insufficient engine coolantEngine coolant leakageCooling hoseLoose clamp
Cracked hose
Water pump Poor sealing
Radiator capLoose
Poor sealing
RadiatorO-ring for damage, deterio-
ration or improper fitting
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Overflowing reservoir tankExhaust gas leakage into
cooling systemCylinder head deterioration
Cylinder head gasket deteri-
oration

CO-4
< SYMPTOM DIAGNOSIS >
OVERHEATING CAUSE ANALYSIS
Except cool-
ing system
parts mal-
function— Overload on engineAbusive drivingHigh engine rpm under no
load
Driving in low gear for ex-
tended time
Driving at extremely high
speed
Powertrain system malfunc-
tion
— Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flowBlocked bumper —
— Blocked radiator grilleInstalled car brassiere
Mud contamination or paper
clogging
Blocked radiator —
Blocked condenser
Blocked air flow
Installed large fog lamp Symptom Check items

CO-6
< PRECAUTION >
PRECAUTIONS
3. Attach liquid gasket tube to the tube presser (commercial ser-
vice tool).
Use Genuine Liquid Gasket or equivalent.
4. Apply liquid gasket without breaks to the specified location with
the specified dimensions.
 If there is a groove for the liquid gasket application, apply liq-
uid gasket to the groove.
 As for the bolt holes (B), normally apply liquid gasket inside
the holes. Occasionally, it should be applied outside the holes.
Check to read the text of service manual.
 Within five minutes of liquid gasket application, install the mat-
ing component.
 If liquid gasket protrudes, wipe it off immediately.
 Never retighten after mounting bolts and nuts the installation.
 After 30 minutes or more have passed from the installation, fill
engine oil and engine coolant.
CAUTION:
If there are specific instructions in this manual, observe them.
EMA0622D
A: Groove
: Inside
JPBIA0010ZZ

CO-8
< ON-VEHICLE MAINTENANCE >
ENGINE COOLANT
ON-VEHICLE MAINTENANCE
ENGINE COOLANT
InspectionINFOID:0000000003793166
LEVEL
 Check if the reservoir tank engine coolant level is within the “MIN”
to “MAX” when the engine is cool.
 Adjust the engine coolant level as necessary.
LEAKAGE
 To check for leakage, apply pressure to the cooling system with the
radiator cap tester (commercial service tool) (A) and radiator cap
tester adapter (commercial service tool) (B).
WARNING:
Never remove radiator cap when engine is hot. Serious burns
could occur from high-pressure engine coolant escaping from
radiator.
CAUTION:
Higher test pressure than specified may cause radiator dam-
age.
NOTE:
In a case that engine coolant decreases, replenish radiator with engine coolant.
 If anything is found, repair or replace damaged parts.
DrainingINFOID:0000000003793167
WARNING:
 To avoid being scalded, never change engine coolant when the engine is hot.
 Wrap a thick cloth around radiator cap and carefully remove radiator cap. First, turn radiator cap a
quarter of a turn to release built-up pressure. Then turn radiator cap all the way.
1. Remove engine under cover.
2. Open radiator drain plug (1) at the bottom of radiator, and then
remove radiator cap.
When draining all of engine coolant in the system, open water drain plugs on cylinder block. Refer
to EM-110, "
Disassembly and Assembly".
3. Remove reservoir tank as necessary, and drain engine coolant and clean reservoir tank before installing.
A: MAX
B: MIN
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Testing pressure : Refer to CO-27, "Radiator".
PBIC5121J
: Vehicle front
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ENGINE COOLANT
CO-9
< ON-VEHICLE MAINTENANCE >
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4. Check drained engine coolant for contaminants such as rust, corrosion or discoloration.
If contaminated, flush the engine cooling system. Refer to CO-10, "
Flushing".
RefillingINFOID:0000000003793168
1. Install reservoir tank if removed, and radiator drain plug.
CAUTION:
Be sure to clean drain plug and install with new O-ring.
If water drain plugs on cylinder block are removed, close and tighten them. Refer to EM-110, "
Dis-
assembly and Assembly".
2. Check that each hose clamp has been firmly tightened.
3. Remove air duct assembly and air cleaner cases (upper and lower) assembly. Refer to EM-26, "
Exploded
View".
4. Disconnect heater hose (1) at the position ( ) in the figure.
5. Fill radiator, and reservoir tank if removed, to specified level.
CAUTION:
Never adhere the engine coolant to electronic equipments.
(alternator etc.)
Pour engine coolant through engine coolant filler neck
slowly of less than 2 (1-3/4 lmp qt) a minute to allow air
in system to escape.
When engine coolant overflows disconnected heater
hose, connect heater hose, and continue filling the engine
coolant.
Use Genuine NISSAN Engine Coolant or equivalent in its
quality mixed with water (distilled or demineralized). Refer
to MA-11, "
Fluids and Lubricants". Tightening torque : Refer to CO-13, "
Exploded View".
: Vehicle front
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Engine coolant capacity
: Refer to CO-27, "Periodical Maintenance Spec-
ification".
(With reservoir tank at “MAX” level)
Reservoir tank engine coolant capacity
:Refer to CO-27, "
Periodical Maintenance Spec-
ification".
(At “MAX” level)
A : MAX
B: MIN
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