radiator cap NISSAN TEANA 2003 Service Manual

A/T FLUID
AT-15
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6. Check A/T fluid condition.

If ATF is very dark or smells burned, checking operation of A/
T. Flush cooling system after repair of A/T.

If ATF contains frictional material (clutches, bands, etc.),
replace radiator and flush cooler line using cleaning solvent
and compressed air after repair of A/T. Refer to CO-37,
"RADIATOR" , CO-40, "RADIATOR (ALUMINUM TYPE)" .
7. Install the removed A/T fluid level gauge in the A/T fluid charging
pipe.
CAUTION:
Firmly fix the A/T fluid level gauge to the A/T fluid charging
pipe using a stopper attached.
Changing A/T FluidBCS000ZM
1. Warm up ATF.
2. Stop engine.
3. Drain ATF from drain plug and refill with new ATF. Always refill same volume with drained ATF.
CAUTION:
Do not reuse drain plug gasket.
4. Run engine at idle speed for 5 minutes.
5. Check A/T fluid level and condition. Refer to AT- 1 4 , "
Checking A/T Fluid" . If ATF is still dirty, repeat steps
2 through 5.
SAT638A
Fluid grade:
Genuine NISSAN ATF Matic Fluid D or equivalent.
Refer to MA-14, "
RECOMMENDED FLUIDS AND LUBRICANTS"
.
Fluid capacity
For QR20DE engine models
: Approx. 8.4 (7-3/8 lmp qt)
For VQ23DE engine models
: Approx. 8.9 (7-7/8 lmp qt)
Drain plug:
: 34 N·m (3.5 kg-m, 25 ft-lb)

TROUBLE DIAGNOSIS
ATC-91
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Insufficient HeatingBJS000G8
SYMPTOM: Insufficient heating
INSPECTION FLOW
*1ATC-54, "Operational Check"*2ATC-66, "Air Mix Door Motor Circuit"*3AT C - 4 7 , "FUNCTION CONFIRMA-
TION PROCEDURE", see No. 2 to
6.
*4ATC-47, "
FUNCTION CONFIRMA-
TION PROCEDURE", see No. 13.*5ATC-59, "
LAN System Circuit"*6AT C - 7 2 , "Blower Motor Circuit"
*7EC-131, "DTC P0117, P0118 ECT
SENSOR" (QR engine) or EC-474,
"DTC P0117, P0118 ECT SEN-
SOR" (VQ engine)*8CO-10, "
Changing Engine Coolant"
(QR engine) or CO-34, "
Changing
Engine Coolant" (VQ engine)*9CO-14, "
Checking Radiator Cap"
(QR engine) or CO-38, "
Checking
Radiator Cap" (VQ engine)
RJIA3273E

REFRIGERANT LINES
ATC-139
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Removal and Installation of High-pressure Pipe 1 (Engine Compartment)BJS000HT
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove extension cowl top lower panel. Refer to EI-21, "
COWL TOP" .
3. Remove low-pressure flexible hose and low-pressure pipe 1 (VQ engine). Refer to ATC-137, "
Removal
and Installation of Low-pressure Flexible Hose and Low-pressure Pipe 1" .
4. Remove radiator reservoir tank. Refer to CO-13, "
RADIATOR" (QR engine) or CO-37, "RADIATOR" (VQ
engine).
5. Remove IPDM E/R. Refer to PG-28, "
Removal and Installation of IPDM E/R" .
6. Remove power steering oil reservoir tank mounting nuts.
7. Remove vehicle harness connector from bracket.
8. Remove high-pressure pipe 1 from clips.
9. Remove high-pressure flexible hose from vehicle clips.
10. Disconnect one-touch joints of high-pressure pipe 1.
a. Set a disconnector (SST: 9253089908) on A/C piping.
b. Slide a disconnector toward vehicle front until it clicks.
c. Slide A/C piping toward vehicle front and disconnect it.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
11. Remove mounting bolt, and then remove high-pressure pipe 1.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings of A/C piping with new ones, and then apply compressor oil to it when installing
it.

Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping
straight in axial direction.

Insert piping securely until a click is heard.

After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.

When recharging refrigerant, check for leaks.
RJIA2232E
RJIA3300E
RJIA1853E

ATC-142
REFRIGERANT LINES

Removal and Installation of CondenserBJS000HV
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove air duct (inlet). Refer to EM-17, "
AIR CLEANER AND AIR DUCT" (QR engine) or EM-131, "AIR
CLEANER AND AIR DUCT" (VQ engine).
3. Remove front grille. Refer to EI-20, "
FRONT GRILLE" .
4. Remove battery. Refer to SC-4, "
BATTERY" .
5. Remove mounting bolts, and then remove battery tray.
6. Remove mounting bolt from high-pressure flexible hose and
high-pressure pipe1.
7. Disconnect high-pressure flexible hose and high-pressure pipe
1 from condenser.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
8. Disconnect refrigerant pressure sensor connector.
9. Remove mounting bolts from condenser.
10. Remove condenser bracket.
11. Remove engine room harness clips from radiator core upper
support.
12. Remove engine room harness mounting resin nuts.
13. Remove radiator upper mount.
RJIA2301E
RJIA1853E
RJIA2233E
RJIA3326E

CO-1
ENGINE COOLING SYSTEM
B ENGINE
CONTENTS
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SECTION CO
A
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ENGINE COOLING SYSTEM
QR
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for Liquid Gasket .................................. 3
REMOVAL OF LIQUID GASKET SEALING .......... 3
LIQUID GASKET APPLICATION PROCEDURE ..... 3
PREPARATION ........................................................... 5
Special Service Tools ............................................... 5
Commercial Service Tools ........................................ 5
OVERHEATING CAUSE ANALYSIS .......................... 6
Troubleshooting Chart .............................................. 6
COOLING SYSTEM .................................................... 8
Cooling Circuit .......................................................... 8
System Chart ........................................................... 9
ENGINE COOLANT .................................................. 10
Inspection ............................................................... 10
LEVEL CHECK ................................................... 10
LEAK CHECK ..................................................... 10
Changing Engine Coolant ...................................... 10
DRAINING ENGINE COOLANT ......................... 10
REFILLING ENGINE COOLANT ......................... 11
FLUSHING COOLING SYSTEM ......................... 12
RADIATOR ................................................................ 13
Removal and Installation ........................................ 13
REMOVAL ........................................................... 13
INSTALLATION ................................................... 14
INSPECTION AFTER INSTALLATION ............... 14
Checking Radiator Cap .......................................... 14
Checking Radiator .................................................. 15
RADIATOR (ALUMINUM TYPE) .............................. 16
Disassembly and Assembly ................................... 16
PREPARATION ................................................... 16
DISASSEMBLY ................................................... 16
ASSEMBLY ......................................................... 17
INSPECTION ...................................................... 19
COOLING FAN ......................................................... 20
Removal and Installation ........................................ 20
REMOVAL ........................................................... 20INSTALLATION ................................................... 20
INSPECTION AFTER INSTALLATION ................ 20
Disassembly and Assembly .................................... 21
DISASSEMBLY ................................................... 21
INSPECTION AFTER DISASSEMBLY ................ 21
ASSEMBLY ......................................................... 21
WATER PUMP .......................................................... 22
Removal and Installation ........................................ 22
REMOVAL ........................................................... 22
INSPECTION AFTER REMOVAL ....................... 23
INSTALLATION ................................................... 23
INSPECTION AFTER INSTALLATION ................ 23
THERMOSTAT AND WATER CONTROL VALVE .... 24
Removal and Installation ........................................ 24
REMOVAL ........................................................... 24
INSPECTION AFTER REMOVAL ....................... 25
INSTALLATION ................................................... 25
INSPECTION AFTER INSTALLATION ................ 25
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 26
Standard and Limit .................................................. 26
ENGINE COOLANT CAPACITY (APPROXI-
MATE) .................................................................. 26
THERMOSTAT .................................................... 26
WATER CONTROL VALVE ................................. 26
RADIATOR .......................................................... 26
VQ
PRECAUTIONS ........................................................ 27
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................. 27
Precautions for Liquid Gasket ................................ 27
REMOVAL OF LIQUID GASKET SEALING ........ 27
LIQUID GASKET APPLICATION PROCEDURE ... 27
PREPARATION ......................................................... 29
Special Service Tools ............................................. 29
Commercial Service Tools ...................................... 29
OVERHEATING CAUSE ANALYSIS ........................ 30
Troubleshooting Chart ............................................ 30

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 ..................................................

PREPARATION
CO-5
[QR]
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PREPARATIONPFP:00002
Special Service ToolsBBS0059X
Commercial Service ToolsBBS0059Y
Tool number
Tool nameDescription
EG17650301
Radiator cap tester adapterAdapting radiator cap tester to radiator cap
and radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
KV99103510
Radiator plate pliers AInstalling radiator upper and lower tanks
KV99103520
Radiator plate pliers BRemoving radiator upper and lower tanks
KV10111100
Seal cutterRemoving chain tensioner cover and water
pump cover
WS39930000
Tube presserPressing the tube of liquid gasket
S-NT564
S-NT224
S-NT225
NT046
S-NT052
Tool nameDescription
Radiator cap tester Checking radiator and radiator cap
PBIC1982E

CO-6
[QR]
OVERHEATING CAUSE ANALYSIS

OVERHEATING CAUSE ANALYSISPFP:00012
Troubleshooting ChartBBS0059Z
Symptom Check items
Cooling sys-
tem parts
malfunctionPoor heat transferWater pump malfunction Worn or loose drive belt
— Thermostat and water con-
trol valve 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

CO-10
[QR]
ENGINE COOLANT

ENGINE COOLANTPFP:KQ100
InspectionBBS005A2
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 that engine coolant decreases, replenish radiator with engine coolant.

If anything is found, repair or replace damaged parts.
Changing Engine CoolantBBS005A3
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 belt.
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 plug on engine cylinder block.
Refer to EM-81, "
CYLINDER BLOCK" .
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
CO-11
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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-12, "
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 plug on cylinder block is removed, close and tighten it. Refer to EM-81, "
CYLINDER
BLOCK" .
2. Make sure that each hose clamp has been firmly tightened.
3. Remove air duct assembly. Refer to EM-17, "
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-17, "
AIR CLEANER AND AIR DUCT" .
7. Install radiator cap.Radiator drain plug:
: 1.2 N·m (0.12 kg-m, 11 in-lb)
1 : Heater hose
: Vehicle front
PBIC4679E
Engine coolant capacity
(With reservoir tank at “MAX” level)
: Approx. 7.4 (6-1/2 lmp qt)SMA182B
Reservoir tank engine coolant capacity
(At “MAX” level)
: 0.8 (3/4 lmp qt)
SMA412B