water piping NISSAN TEANA 2003 Service Manual

ATC-6
PRECAUTIONS

–When removing refrigerant components from a vehicle, immediately cap (seal) the component to
minimize the entry of moisture from the atmosphere.
–When installing refrigerant components to a vehicle, never remove the caps (unseal) until just
before connecting the components. Connect all refrigerant loop components as quickly as possi-
ble to minimize the entry of moisture into system.
–Only use the specified lubricant from a sealed container. Immediately reseal containers of lubri-
cant. Without proper sealing, lubricant will become moisture saturated and should not be used.
–Never allow lubricant (Nissan A/C System Oil Type S) to come in contact with styrene foam parts.
Damage may result.
General Refrigerant PrecautionsBJS000F5
WARNING:

Avoid breathing A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and
throat. Use only approved recovery/recycling equipment to discharge HFC-134a (R-134a) refriger-
ant. If accidental system discharge occurs, ventilate work area before resuming service. Addi-
tional health and safety information may be obtained from refrigerant and lubricant
manufacturers.

Never release refrigerant into the air. Use approved recovery/recycling equipment to capture the
refrigerant every time an air conditioning system is discharged.

Always wear eye and hand protection (goggles and gloves) when working with any refrigerant or
air conditioning system.

Never store or heat refrigerant containers above 52°C (126°F).

Never heat a refrigerant container with an open flame; if container warming is required, place the
bottom of the container in a warm pail of water.

Never intentionally drop, puncture, or incinerate refrigerant containers.

Keep refrigerant away from open flames: poisonous gas will be produced if refrigerant burns.

Refrigerant will displace oxygen, therefore be certain to work in well ventilated areas to prevent
suffocation.

Never pressure test or leak test HFC-134a (R-134a) service equipment and/or vehicle air condition-
ing systems with compressed air during repair. Some mixtures of air and HFC-134a (R-134a) have
been shown to be combustible at elevated pressures. These mixtures, if ignited, may cause injury
or property damage. Additional health and safety information may be obtained from refrigerant
manufacturers.
Precautions for Refrigerant ConnectionBJS000F7
A new type refrigerant connection has been introduced to all refrigerant lines except the following location.

Expansion valve to evaporator

Refrigerant pressure sensor to condenser
ABOUT ONE-TOUCH JOINT
Description

One-touch joints are pipe joints which do not require tools during piping connection.

Unlike conventional connection methods using union nuts and flanges, controlling tightening torque at
connection point is not necessary.

When removing a pipe joint, use a disconnector.

CO-2 COOLING SYSTEM .................................................. 32
Cooling Circuit ........................................................ 32
System Chart .......................................................... 33
ENGINE COOLANT .................................................. 34
Inspection ............................................................... 34
LEVEL CHECK .................................................... 34
LEAK CHECK ...................................................... 34
Changing Engine Coolant ....................................... 34
DRAINING ENGINE COOLANT .......................... 34
REFILLING ENGINE COOLANT ......................... 35
FLUSHING COOLING SYSTEM ......................... 36
RADIATOR ................................................................ 37
Removal and Installation ........................................ 37
REMOVAL ........................................................... 37
INSTALLATION .................................................... 38
INSPECTION AFTER INSTALLATION ................ 38
Checking Radiator Cap .......................................... 38
Checking Radiator .................................................. 39
RADIATOR (ALUMINUM TYPE) ............................... 40
Disassembly and Assembly .................................... 40
PREPARATION ................................................... 40
DISASSEMBLY ................................................... 40
ASSEMBLY ......................................................... 41
INSPECTION ....................................................... 43
COOLING FAN .......................................................... 44
Removal and Installation ........................................ 44
REMOVAL ........................................................... 44INSTALLATION .................................................... 44
Disassembly and Assembly .................................... 45
DISASSEMBLY .................................................... 45
INSPECTION AFTER DISASSEMBLY ................ 45
ASSEMBLY .......................................................... 45
WATER PUMP ........................................................... 46
Removal and Installation ......................................... 46
REMOVAL ............................................................ 46
INSPECTION AFTER REMOVAL ........................ 47
INSTALLATION .................................................... 48
INSPECTION AFTER INSTALLATION ................ 49
WATER INLET AND THERMOSTAT ASSEMBLY .... 50
Removal and Installation ......................................... 50
REMOVAL ............................................................ 50
INSPECTION AFTER REMOVAL ........................ 51
INSTALLATION .................................................... 51
INSPECTION AFTER INSTALLATION ................ 51
WATER OUTLET AND WATER PIPING ................... 52
Removal and Installation ......................................... 52
REMOVAL ............................................................ 52
INSTALLATION .................................................... 53
INSPECTION AFTER INSTALLATION ................ 53
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 54
Standard and Limit .................................................. 54
ENGINE COOLANT CAPACITY (APPROXI-
MATE) .................................................................. 54
RADIATOR ........................................................... 54
THERMOSTAT ..................................................

CO-46
[VQ]
WATER PUMP

WATE R P U M PPFP:21020
Removal and InstallationBBS004X6
CAUTION:

When removing water pump assembly, be careful not to get engine coolant on drive belts.

Water pump cannot be disassembled and should be replaced as a unit.

After installing water pump, connect hose and clamp securely, then check for leaks using radiator
cap tester (commercial service tool) and radiator cap tester adapter [SST: EG17650301].
REMOVAL
1. Remove engine cover. Refer to EM-133, "INTAKE MANIFOLD COLLECTOR" .
2. Remove air duct (inlet). Refer to EM-131, "
AIR CLEANER AND AIR DUCT" .
3. Remove undercover and splash guard (RH).
4. Drain engine coolant from radiator. Refer to CO-34, "
Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
5. Remove drive belts. Refer to EM-128, "
DRIVE BELTS" .
6. Remove reservoir tank of radiator. Refer to CO-37, "
RADIATOR" .
7. Remove reservoir tank of power steering oil pump with piping connected, and move it to aside.
8. Support oil pan (lower) bottom with transmission jack.
9. Remove engine mounting insulator (RH) and engine mounting bracket (RH). Refer to EM-223, "
ENGINE
ASSEMBLY" .
1. Water pump 2. Timing chain tensioner (primary) 3. Chain tensioner cover
4. Water drain plug (front) 5. Water pump cover 6. O-ring
7. O-ring
PBIC2515E

CO-52
[VQ]
WATER OUTLET AND WATER PIPING

WATER OUTLET AND WATER PIPINGPFP:11060
Removal and InstallationBBS004X8

Refer to GI-10, "Components" for symbol marks in the figure.
REMOVAL
1. Remove engine cover. Refer to EM-133, "INTAKE MANIFOLD COLLECTOR" .
2. Drain engine coolant from radiator drain plug at the bottom of radiator, and from water drain plug at the
front of cylinder block. Refer to CO-34, "
Changing Engine Coolant" and CO-46, "WATER PUMP" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
3. Remove air duct (inlet), air cleaner case (upper) with mass air flow sensor and air duct assembly. Refer to
EM-131, "
AIR CLEANER AND AIR DUCT" .
4. Remove radiator hose (upper).
5. Remove water hoses and heater hoses.
6. Disconnect harness connectors, and move harness to aside.
1. Radiator hose (upper) 2. Washer 3. Engine coolant temperature sensor
4. Heater hose 5. Water outlet 6. Water hose
7. Gasket 8. Water hose 9. Gasket
10. Water connector 11. O-ring 12. Heater pipe
13. Heater hose 14. Water bypass pipe 15. Water hose
A. To heater core B. To intake manifold collector (upper) C. To intake manifold collector (upper)
D.To heater core (VQ23DE)
To CVT fluid cooler valve (VQ35DE)E. To radiator
PBIC4583J

WATER OUTLET AND WATER PIPING
CO-53
[VQ]
C
D
E
F
G
H
I
J
K
L
MA
CO

7. Remove engine coolant temperature sensor as necessary.
CAUTION:
Be careful not to damage engine coolant temperature sensor.
8. Remove water outlet, heater pipe, water bypass pipe and water connector.
INSTALLATION
Note the following, and install in the reverse order of removal.

Securely insert each hose, and install clamp at a position where it does not interfere with the pipe bulge.

When inserting water bypass pipe and heater pipe into water connector, apply neutral detergent to O-ring.
INSPECTION AFTER INSTALLATION

Check for leaks of engine coolant using radiator cap tester adapter [SST: EG17650301] and radiator cap
tester (commercial service tool). Refer to CO-34, "
LEAK CHECK" .

Start and warm up engine. Visually check if there is no leaks of engine coolant.

EC-62
[QR]
TROUBLE DIAGNOSIS

SYSTEM — ENGINE MECHANICAL & OTHER
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel tank
5
5FL-8
Fuel piping 5 5 5 5 5 5EM-34
Vapor lock—
Valve deposit
5 555 55 5—
Poor fuel (Heavy weight gaso-
line, Low octane)—
Air Air duct
55555 5EM-17
Air cleaner
Air leakage from air duct
(Mass air flow sensor —electric
throttle control actuator)
5555
Electric throttle control actuator
EM-19
Air leakage from intake manifold/
Collector/Gasket
Cranking Battery
111111 11SC-4
Alternator circuitSC-27
Starter circuit 3SC-14
Signal plate/Flywheel/Drive plate 6EM-81
PNP switch 4AT- 1 6 1
Engine Cylinder head
55555 55 5EM-65
Cylinder head gasket 4 3
Cylinder block
66666 66 64
EM-81
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Va l v e
mecha-
nismTiming chain
55555 55 5EM-53
CamshaftEM-41
Intake valve timing controlEM-53
Intake valve
3EM-65
Exhaust valve

TROUBLE DIAGNOSIS
EC-403
[VQ]
C
D
E
F
G
H
I
J
K
L
MA
EC

1 - 6: The numbers refer to the order of inspection.
(continued on next page)
SYSTEM — ENGINE MECHANICAL & OTHER
Intake valve timing control solenoid valve cir-
cuit32 13223 3EC-545
PNP switch circuit 3 3 3 3 3EC-614
VIAS control solenoid valve circuit 1EC-753
Refrigerant pressure sensor circuit 2 3 3 4EC-748
Electrical load signal circuit 3EC-670
Air conditioner circuit 223333333 3 2AT C - 3 4
ABS actuator and electric unit (control unit) 4BRC-8 or
BRC-44
SYMPTOM
Refer-
ence page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel tank
5
5FL-8
Fuel piping 5 5 5 5 5 5FL-3
Vapor lock—
Valve deposit
5 555 55 5—
Poor fuel (Heavy weight gaso-
line, Low octane)—

EC-478
[VQ]
DTC P0117, P0118 ECT SENSOR

3. CHECK ECT SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connectors.
3. Check harness continuity between ECM terminal 67 and ECT sensor terminal 2.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK ENGINE COOLANT TEMPERATURE SENSOR
Refer to EC-478, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Replace engine coolant temperature sensor.
5. CHECK INTERMITTENT INCIDENT
Refer to EC-450, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionBBS004ZH
ENGINE COOLANT TEMPERATURE SENSOR
1. Check resistance between engine coolant temperature sensor
terminals 1 and 2 as shown in the figure.

2. If NG, replace engine coolant temperature sensor.
Removal and InstallationBBS004ZI
ENGINE COOLANT TEMPERATURE SENSOR
Refer to CO-52, "WATER OUTLET AND WATER PIPING" . Continuity should exist.
PBIB2005E
Engine coolant temperature°C
(°F)Resistance kΩ
20 (68) 2.1 - 2.9
50 (122) 0.68 - 1.00
90 (194) 0.236 - 0.260
SEF012P

EM-78
[QR]
ENGINE ASSEMBLY

REMOVAL
Outline
Remove engine and transaxle assembly with front suspension member from vehicle downward. Separate
front suspension member, and then separate engine and transaxle.
Preparation
1. Release fuel pressure. Refer to EC-49, "FUEL PRESSURE RELEASE" .
2. Drain engine coolant from radiator. Refer to CO-10, "
Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belt.
3. Remove the following parts.

Hood assembly; Refer to BL-13, "HOOD" .

Undercover and splash guards (RH and LH)

Front road wheels and tires

Battery, battery tray and battery tray bracket; Refer to SC-4, "BATTERY" .

Drive belt; Refer to EM-14, "DRIVE BELTS" .

Air duct (inlet); Refer to EM-17, "AIR CLEANER AND AIR DUCT" .

Air cleaner case (upper) with mass air flow sensor and air duct assembly; Refer to EM-17, "AIR
CLEANER AND AIR DUCT" .

Alternator and alternator bracket; Refer to SC-27, "CHARGING SYSTEM" .

Radiator and radiator cooling fan assembly, reservoir tank of radiator and system hoses; Refer to CO-
13, "RADIATOR" .
4. Disconnect engine room harness connector from ECM side and set it aside for easier work.
5. Disconnect all vacuum hoses and air hoses connected to vehicle side at engine side.
Engine Room LH
1. Disconnect heater hose, and install plug it to prevent engine coolant from draining. Refer to CO-24,
"THERMOSTAT AND WATER CONTROL VALVE" .
2. Disconnect fuel feed hose, and plug it to prevent fuel from draining. Refer to EM-34, "
FUEL INJECTOR
AND FUEL TUBE" .
3. Disconnect control cable from transaxle. Refer to AT- 2 1 3 , "
SHIFT CONTROL SYSTEM" .
4. Disconnect B terminal harness of starter motor. Refer to SC-14, "
STARTING SYSTEM" .
Engine Room RH
1. Remove IPDM E/R and bracket. Refer to PG-17, "IPDM E/R (INTELLIGENT POWER DISTRIBUTION
MODULE ENGINE ROOM)" .
2. Remove A/C compressor with piping connected from engine. Temporarily secure it on vehicle side with a
rope to avoid putting load on it. Refer to ATC-134, "
Removal and Installation of Compressor" .
3. Remove reservoir tank of power steering oil pump. Temporarily secure it on engine side with a rope. Refer
to PS-39, "
HYDRAULIC LINE" .
Vehicle Underbody
1. Remove RH and LH front drive shafts. Refer to FAX-8, "FRONT DRIVE SHAFT" .
2. Remove exhaust front tube. Refer to EX-2, "
EXHAUST SYSTEM" .
3. Remove rear plate cover from oil pan (upper). Then remove bolts fixing drive plate to torque converter.
Refer to EM-26, "
OIL PAN AND OIL STRAINER" and AT- 2 4 1 , "TRANSAXLE ASSEMBLY" .
4. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to AT- 2 4 1 , "
TRAN-
SAXLE ASSEMBLY" .
5. Disconnect connecting rod for front stabilizer. Refer to FSU-5, "
FRONT SUSPENSION ASSEMBLY" .
6. Remove steering lower joint from steering gear. Refer to PS-12, "
STEERING COLUMN" .
7. Remove power steering fluid piping from front suspension member. Refer to PS-39, "
HYDRAULIC LINE"
.
8. Disconnect power steering fluid piping at a point between vehicle and engine, and install plug it to prevent
power steering fluid. Refer to PS-39, "
HYDRAULIC LINE" .

EM-146
[VQ]
OIL PAN AND OIL STRAINER

CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
3. Remove the following:

Engine cover; Refer to EM-133, "INTAKE MANIFOLD COLLECTOR" .

Splash guard (RH)

Exhaust front tube; Refer to EX-2, "EXHAUST SYSTEM" .

Drive belts; Refer to EM-128, "DRIVE BELTS" .
4. Remove A/C compressor with piping connected, and temporarily secure it to aside. Refer to ATC-133,
"Components" .
5. Remove three way catalysts (right and left banks) from exhaust manifolds (right and left banks). Refer to
EM-140, "
EXHAUST MANIFOLD AND THREE WAY CATALYST" .
6. Remove oil pressure switch. Refer to LU-20, "
OIL PRESSURE CHECK" .
7. Remove crankshaft position sensor (POS).
CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble.

Do not allow metal powder to adhere to magnetic part at sensor tip.

Do not place sensor in a location where it is exposed to magnetism.
8. Remove oil filter. Refer to LU-22, "
OIL FILTER" .
9. Remove oil cooler and water pipes (VQ35DE). Refer to LU-23, "
OIL COOLER (VQ35DE)" .
10. Remove oil pan (lower) as follows:
a. Loosen mounting bolts in the reverse order as shown in the fig-
ure.
b. Insert seal cutter (SST) between oil pan (lower) and oil pan
(upper).
CAUTION:

Be careful not to damage the mating surfaces.

Do not insert screwdriver, this will damage the mating
surfaces.
c. Slide seal cutter by tapping on the side of the tool with hammer.
Remove oil pan (lower).
PBIC0782E
SEM365ED