engine coolant NISSAN TEANA 2003 Owner's Manual

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitBBS005AC
ENGINE COOLANT CAPACITY (APPROXIMATE)
Unit: (lmp qt)
THERMOSTAT
WATER CONTROL VALVE
*: Reference data
RADIATOR
Unit: kPa (bar, kg/cm2 , psi)
Engine coolant capacity (With reservoir tank at “MAX” level) 7.4 (6-1/2)
Reservoir tank engine coolant capacity (At “MAX” level) 0.8 (3/4)
Valve opening temperature 80.5 - 83.5°C (177 - 182°F)
Maximum valve lift 8 mm/ 95°C (0.315 in/ 203°F)
Valve closing temperature 77°C (171°F)
Valve opening temperature 93.5 - 96.5°C (200 - 206°F)
Maximum valve lift 8 mm/ 108°C (0.315 in/ 226°F)*
Valve closing temperature 90°C (194°F)
Cap relief pressureStandard 78 - 98 (0.78 - 0.98, 0.8 - 1.0, 11- 14)
Limit 59 (0.59, 0.6, 9)
Leakage test pressure 157 (1.57, 1.6, 23)

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PRECAUTIONS


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.

Within 5 minutes of liquid gasket application, install the mating
component.

If liquid gasket protrudes, wipe it off immediately.

Do not retighten mounting bolts or nuts after 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.
SEM159F

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OVERHEATING CAUSE ANALYSIS

OVERHEATING CAUSE ANALYSISPFP:00012
Troubleshooting ChartBBS004WV
Symptom Check items
Cooling sys-
tem parts
malfunctionPoor heat transferWater pump malfunction Worn or loose drive belt
— Thermostat stuck closed —
Damaged finsDust contamination or
paper 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 viscosity —
Insufficient engine coolantEngine coolant leaksCooling 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 leaks into
cooling systemCylinder head deterioration
Cylinder head gasket dete-
rioration

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ENGINE COOLANT

ENGINE COOLANTPFP:KQ100
InspectionBBS004WY
LEVEL CHECK

Check if the reservoir tank engine coolant level is within the
“MIN” to “MAX” range when engine is cool.

Adjust the engine coolant level as necessary.
LEAK CHECK

To check for leaks, apply pressure to the cooling system with
radiator cap tester (commercial service tool) and radiator cap
tester adapter (SST).
WARNING:
Do not remove radiator cap when engine is hot. Serious
burns could occur from high-pressure engine coolant
escaping from radiator.
CAUTION:
Higher testing pressure than specified may cause radiator
damage.
NOTE:
In a case engine coolant decreases, replenish radiator with engine coolant.

If anything is found, repair or replace damaged parts.
Changing Engine CoolantBBS004WZ
WARNING:

To avoid being scalded, do not change engine coolant when engine is hot.

Wrap a thick cloth around radiator cap and carefully remove the cap. First, turn the cap a quarter
of a turn to release built-up pressure. Then turn the cap all the way.

Be careful not to allow engine coolant to contact drive belts.
DRAINING ENGINE COOLANT
1. Remove grommet from undercover.
2. Open radiator drain plug at the bottom of radiator, and then remove radiator cap.
When drain all of engine coolant in the system, open water drain plugs on cylinder block. Refer to
EM-229, "
DISASSEMBLY" .
3. Remove reservoir tank as necessary, and drain engine coolant and clean reservoir tank before installing.
SMA412B
Testing pressure
: 157 kPa (1.57 bar, 1.6 kg/cm
2 , 23 psi)
SLC756AA
PBIC2512E

ENGINE COOLANT
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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-36, "
FLUSHING COOLING SYSTEM" .
REFILLING ENGINE COOLANT
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-233,
"ASSEMBLY" .
2. Make sure that each hose clamp has been firmly tightened.
3. Remove air duct assembly. Refer to EM-131, "
AIR CLEANER AND AIR DUCT" .
4. Disconnect heater hose (left side of vehicle) at the position in
the figure.

Enhance heater hose as high as possible.
5. Fill radiator and reservoir tank 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.

Use NISSAN Genuine Engine Coolant or equivalent
mixed with water (distilled or demineralized). Refer to
MA-14, "
RECOMMENDED FLUIDS AND LUBRICANTS".

When engine coolant overflows disconnected heater hose, connect heater hose, and continue filling the
engine coolant.
6. Install air duct assembly. Refer to EM-131, "
AIR CLEANER AND AIR DUCT" .
7. Install radiator cap.Radiator drain plug:
: 1.2 N·m (0.12 kg-m, 11 in-lb)
PBIC2810E
Engine coolant capacity
(With reservoir tank at “MAX” level)
: Approx. 8.2 (7-1/4 lmp qt) [VQ23DE]
: Approx. 8.8 (7-3/4 lmp qt) [VQ35DE]SMA182B
Reservoir tank engine coolant capacity
(At “MAX” level)
: 0.8 (3/4 lmp qt)
SMA412B

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ENGINE COOLANT

8. Warm up until opening thermostat. Standard for warming-up time is approximately 10 minutes at 3000
rpm.

Make sure thermostat opening condition by touching radiator hose (lower) to see a flow of warm water.
CAUTION:
Watch water temperature gauge so as not to overheat engine.
9. Stop engine and cool down to less than approximately 50°C (122°F).

Cool down using fan to reduce the time.

If necessary, refill radiator up to filler neck with engine coolant.
10. Refill reservoir tank to “MAX” level line with engine coolant.
11. Repeat steps 3 through 9 two or more times with radiator cap installed until engine coolant level no longer
drops.
12. Check cooling system for leaks with engine running.
13. Warm up engine, and check for sound of engine coolant flow while running engine from idle up to 3,000
rpm with heater temperature controller set at several position between “COOL” and “WARM”.

Sound may be noticeable at heater unit.
14. Repeat step 13 three times.
15. If sound is heard, bleed air from cooling system by repeating step 3 through 9 until engine coolant level no
longer drops.
FLUSHING COOLING SYSTEM
1. Install reservoir tank if removed, and radiator drain plug.
CAUTION:
Be sure to clean drain plug and install with new O-ring.
If cylinder block water drain plugs are removed, close and tighten them. Refer to EM-233, "
ASSEM-
BLY" .
2. Remove air duct assembly. Refer to EM-131, "
AIR CLEANER AND AIR DUCT" .
3. Disconnect heater hose (left side of vehicle) at the position in
the figure.

Enhance heater hose as high as possible.
4. Fill radiator and reservoir tank with water and install radiator cap.

When engine coolant overflows disconnected heater hose, connect heater hose, and continue filling the
engine coolant.
5. Install air duct assembly. Refer to EM-131, "
AIR CLEANER AND AIR DUCT" .
6. Run engine and warm it up to normal operating temperature.
7. Rev engine two or three times under no-load.
8. Stop engine and wait until it cools down.
9. Drain water from the system. Refer to CO-34, "
DRAINING ENGINE COOLANT" .
10. Repeat steps 1 through 9 until clear water begins to drain from radiator.Radiator drain plug:
: 1.2 N·m (0.12 kg-m, 11 in-lb)
PBIC2810E

RADIATOR
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RADIATORPFP:21400
Removal and InstallationBBS004X0

Refer to GI-10, "Components" for symbol marks in the figure.
WARNING:
Do not remove radiator cap when engine is hot. Serious burns could occur from high-pressure engine
coolant escaping from radiator. Wrap a thick cloth around the cap. Slowly turn it a quarter of a turn to
release built-up pressure. Carefully remove radiator cap by turning it all the way.
REMOVAL
1. Remove undercover.
2. 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.
3. Remove air duct (inlet). Refer to EM-131, "
AIR CLEANER AND AIR DUCT" .
4. Disconnect harness connector from fan motors, and move harness to aside.
1. Reservoir tank 2. Reservoir tank cap 3. Reservoir tank hose
4. Mounting bracket 5. Mounting rubber (upper) 6. Radiator cap
7. Radiator 8. Radiator hose (upper) 9. Mounting rubber (lower)
10.A/T fluid cooler hose (VQ23DE)
CVT fluid cooler hose (VQ35DE)11. Radiator drain plug 12. O-ring
13. Radiator hose (lower) 14. Radiator cooling fan assembly
A.To water inlet and thermoatat assem-
blyB. To water outlet C. To transaxle
PBIC4711E

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RADIATOR

5. Disconnect A/T fluid cooler hoses (VQ23DE), or CVT fluid cooler hoses (VQ35DE).

Install plug to avoid leakage of A/T fluid or CVT fluid.
6. Remove radiator hoses (upper and lower) and reservoir tank hose.
7. Remove reservoir tank.
8. Remove battery and battery tray, and move fuse and fusible link block to aside. Refer to SC-4, "
BAT-
TERY" .
9. Remove mounting brackets to lift up and remove radiator and radiator cooling fan assembly.
CAUTION:
Do not damage or scratch A/C condenser and radiator core when removing.
10. Remove radiator cooling fan assembly from radiator.
INSTALLATION
Installation is the reverse order of removal.
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 and A/T fluid.
Checking Radiator CapBBS005AW

Check valve seat of radiator cap.
–Check if valve seat is swollen to the extent that the edge of the
plunger cannot be seen when watching it vertically from the top.
–Check if valve seat has no soil and damage.

Pull negative-pressure valve to open it, and make sure that it is
completely closed when released.
–Make sure that there is no dirt or damage on the valve seat of
radiator cap negative-pressure valve.
–Make sure that there are no unusualness in the opening and
closing conditions of negative-pressure valve.

Check radiator cap relief pressure.
–When connecting radiator cap to the radiator cap tester (com-
mercial service tool) and the radiator cap tester adapter (SST),
apply engine coolant to the cap seal surface.

Replace radiator cap if there is an unusualness related to the above three.
PBIC2816E
SMA967B
Standard:
78 - 98 kPa (0.78 - 0.98bar, 0.8 - 1.0 kg/cm
2 , 11 - 14 psi)
Limit:
59 kPa (0.59bar, 0.6 kg/cm
2 , 9 psi)
SLC755AC

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COOLING FAN

COOLING FANPFP:21140
Removal and InstallationBBS004X4
REMOVAL
1. 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.
2. Remove air duct (inlet). Refer to EM-131, "
AIR CLEANER AND AIR DUCT" .
3. Disconnect radiator hose (upper) at radiator side. Refer to CO-37, "
RADIATOR" .
4. Disconnect harness connector from fan motors, and move harness to aside.
5. Remove battery and battery tray, and move fuse and fusible link block to aside. Refer to SC-4, "
BAT-
TERY" .
6. Remove mounting bolts to lift up and remove radiator cooling fan assembly.
CAUTION:
Be careful not to damage or scratch on radiator core.
INSTALLATION
Installation is the reverse order of removal.

Cooling fans are controlled by ECM. For details, refer to EC-575, "DTC P1217 ENGINE OVER TEMPER-
ATURE" .
1. Cooling fan (RH) 2. Cooling fan (LH) 3. Fan shroud
4. Fan motor
PBIC2514E

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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