2003 NISSAN X-TRAIL Cooling fan

GI-34
CONSULT-II CHECKING SYSTEM

Checking Equipment EAS000GB
When ordering the following equipment, contact your NISSAN/INFINITI distributor.
NOTE:

The CONSULT-II must be used in conjunction with a program card.
CONSULT-II does not require loading (Initialization) procedure.

Be sure the CONSULT-II is turned off before installing or removing a program card.
CAUTION:

If CONSULT-ll is used with no connection of CONSULT-ll CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.

If CONVERTER is not connected with CONSULT-ll, vehicle occur the "FAIL-SAFE MODE" which is
"LIGHT UP the HEADLIGHT" and/or "Cooling FAN ROTATING" when CONSULT-ll is started.
CONSULT-II Start ProcedureEAS0017Y
1. Turn off the ignition switch.
2. Connect CONSULT-II and CONSULT-II CONVERTER to the
data link connector.
3. Turn on the ignition switch.
4. Touch “START (NISSAN BASED VHCL)” or “System Shortcut”
(eg : Engine) on the screen.
Tool nameDescription
NISSAN CONSULT-II
1. CONSULT-II unit (Tester internal soft: Resident
version 3.3.0) and accessories
2. Program card AED03E and AEN02C-1 (For
NATS)
3. CONSULT-II CONVERTER
SAIA0362E
PAIA0070E
SKIA3098E

ENGINE ASSEMBLY
EM-79
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Preparation
1. Remove hood assembly. Refer to BL-12, "HOOD" .
2. Release fuel pressure. Refer to EC-48, "
FUEL PRESSURE RELEASE" (WITH EURO-OBD) or EC-510,
"FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).
3. Disconnect both battery terminals. Refer to SC-3, "
BATTERY" .
4. Drain engine coolant from radiator. Refer to CO-9, "
DRAINING ENGINE COOLANT" .
5. Remove the following parts.

LH and RH undercovers

Front road wheels and tyres

Battery; Refer to SC-3, "BATTERY" .

Drive belt; Refer to EM-13, "DRIVE BELTS" .

Air duct and air cleaner case assembly; Refer to EM-15, "AIR CLEANER AND AIR DUCT" .

Alternator; Refer to SC-12, "CHARGING SYSTEM" .

Radiator and radiator cooling fan assembly; Refer to CO-12, "RADIATOR" .
6. Disconnect engine room harness from the engine side and set it aside for easier work.
7. Disconnect all vacuum hoses and air hoses connected to vehicle side at engine side.
Engine Room LH
1. Disconnect fuel feed hose, and plug it to prevent fuel from draining. Refer to EM-32, "FUEL INJECTOR
AND FUEL TUBE"
2. Disconnect heater hose, and install plug it to prevent engine coolant from draining.
3. Disconnect control cable from transaxle (A/T models). Refer to AT- 4 0 4 , "
ON-VEHICLE SERVICE" .
4. Disconnect clutch operating cylinder from transaxle, and move it aside (M/T models). Refer to CL-10,
"OPERATING CYLINDER" .
5. Disconnect shift and select cable from transaxle (M/T models). Refer to MT-14, "
CONTROL LINKAGE" .
Engine Room RH
1. Remove engine coolant reservoir tank. Refer to CO-12, "RADIATOR" .
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-144, "
Removal and Installation of Compressor" .
Vehicle Underbody
1. Remove exhaust front tube. Refer to EX-2, "EXHAUST SYSTEM" .
2. Remove propeller shaft. Refer to PR-3, "
REAR PROPELLER SHAFT" .
3. Remove steering lower joint from steering gear. Refer to PS-10, "
STEERING COLUMN" .
4. Disconnect power steering fluid piping at a point between vehicle and engine. Refer to PS-34, "
HYDRAU-
LIC LINE" .
5. Remove rear plate cover from oil pan (upper). Then remove bolts fixing drive plate to torque converter
(A/T models). Refer to EM-25, "
OIL PAN AND OIL STRAINER" and AT- 4 1 3 , "REMOVAL AND INSTALLA-
TION" .
6. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to MT-17, "
TRAN-
SAXLE ASSEMBLY" (M/T models) or AT- 4 1 3 , "REMOVAL AND INSTALLATION" (A/T models).
7. Remove front wheel sensor (LH and RH) for ABS from steering knuckle. Refer to BRC-45, "
WHEEL SEN-
SORS" (ABS) or BRC-116, "WHEEL SENSORS" (ESP/TCS/ABS).
8. Remove brake caliper assembly with piping connected from steering knuckle. Temporarily secure it on
vehicle side with a rope to avoid load on it. Refer to BR-27, "
FRONT DISC BRAKE" .
9. Remove lower ends of left and right strut from steering knuckle. Refer to FSU-5, "
FRONT SUSPENSION
ASSEMBLY" .
Removal
1. Install engine slingers into front left of cylinder head and rear right of cylinder head.

CATALYST
EM-139
[YD22DDTi]
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CATALYSTPFP:20905
Removal and InstallationEBS00LRG
REMOVAL
1. Remove engine undercover.
2. Drain engine coolant. Refer to CO-31, "
Changing Engine Coolant" .
3. Remove radiator upper and lower hoses. Refer to CO-34, "
RADIATOR" .
4. Remove cooling fan. Refer to CO-36, "
DISASSEMBLY AND ASSEMBLY" .
5. Remove radiator mounting bracket and radiator. Refer to CO-34, "
Removal and Installation" .
6. Remove water inlet pipe. Refer to CO-44, "
THERMOSTAT AND WATER PIPING" .
7. Remove catalyst insulators.
8. Remove exhaust front tube. Refer to EX-2, "
EXHAUST SYSTEM" .
9. Remove catalyst.
CAUTION:
Do not disassemble.
NOTE:
Install two locking pins into both sides of the catalyst. Be careful not to confuse locking pins with insulator
mounting bolts.
1. Catalyst insulator 2. Gasket 3. Catalyst
4. Locking pin 5. Gusset 6. Gasket cap
7. Catalyst rear diffuser
PBIC2312E
Catalyst locking pin : Flange bolt (black)

EXHAUST MANIFOLD AND TURBOCHARGER
EM-141
[YD22DDTi]
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EXHAUST MANIFOLD AND TURBOCHARGERPFP:14004
Removal and InstallationEBS00LRH
REMOVAL
1. Drain engine coolant. Refer to CO-31, "Changing Engine Coolant" .
2. Remove charge air cooler. Refer to EM-135, "
Removal and Installation" .
3. Remove air duct. Refer to EM-133, "
Removal and Installation" .
4. Remove air inlet pipe.
5. Remove engine undercover.
6. Remove radiator upper and lower hoses. Refer to CO-34, "
RADIATOR" .
7. Remove cooling fan. Refer to CO-36, "
DISASSEMBLY AND ASSEMBLY" .
8. Remove radiator mounting bracket and radiator. Refer to CO-34, "
Removal and Installation" .
9. Remove water inlet pipe. Refer to CO-44, "
THERMOSTAT AND WATER PIPING" .
10. Remove catalyst. Refer to EM-139, "
Removal and Installation" .
11. Remove exhaust manifold insulator.
12. Remove turbocharger insulator.
13. Remove oil feed tube and oil return tube.
1. EGR volume control valve 2. Gasket 3. EGR cooler
4. Air inlet pipe 5.Exhaust manifold and turbocharger
assembly6. Oil feed tube and oil return tube
7. Oil return hose 8. Copper washer 9. Eye-bolt
10. Turbocharger insulator 11. Exhaust manifold insulator 12. Air inlet pipe
PBIC2022E

ENGINE ASSEMBLY
EM-209
[YD22DDTi]
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REMOVAL
Description of work
Remove engine, transaxle and transfer assembly with front suspension member from vehicle downward. Sep-
arate suspension member, and then separate engine and transaxle.
Preparation
1. Remove hood assembly. Refer to BL-12, "HOOD" .
2. Drain engine coolant from radiator drain plug. Refer to CO-31, "
DRAINING ENGINE COOLANT" .
3. Remove the following parts.

LH/RH engine undercover

LH/RH front wheels

Battery; Refer to SC-3, "BATTERY" .

Drive belts; Refer to EM-132, "Removal and Installation" .

Air duct and air cleaner case assembly; Refer to EM-133, "Removal and Installation" .

Alternator; Refer to SC-16, "Removal and Installation" .

Radiator and cooling fan assembly; Refer to CO-34, "Removal and Installation" and CO-36, "COOL-
ING FAN" .

Charge air cooler; Refer to EM-135, "CHARGE AIR COOLER" .
4. Disconnect engine room harness from the engine side and set it aside for easier work.
5. Disconnect all the body-side vacuum hoses and air hoses at engine side.
Engine room LH
1. Disconnect fuel feed hose and return hose, and plug it to prevent fuel from draining. Refer to EM-136,
"INTAKE MANIFOLD" .
2. Disconnect heater hose, and install plug it to prevent engine coolant from draining. Refer to EM-136,
"INTAKE MANIFOLD" .
3. Remove clutch operating cylinder from transaxle, and move it aside. Refer to MT-17, "
TRANSAXLE
ASSEMBLY" and CL-10, "OPERATING CYLINDER" .
4. Disconnect shift cable from transaxle. Refer to MT-14, "
CONTROL LINKAGE" .
Engine room RH
1. Remove engine coolant reservoir tank. Refer to CO-34, "RADIATOR" .
2. Remove A/C compressor with piping connected from engine. Temporarily secure it on body with a rope to
avoid putting load on it. Refer to ATC-144, "
Removal and Installation of Compressor" .
Vehicle underbody
1. Remove exhaust front tube. Refer to EX-2, "Removal and Installation" .
2. Remove propeller shaft. Refer to PR-4, "
Removal and Installation" .
3. Remove steering shaft from steering gear. Refer to PS-10, "
STEERING COLUMN" .
4. Disconnect power steering fluid cooler piping at a point between body and engine. Refer to PS-34,
"HYDRAULIC LINE" .
5. Remove ABS sensor from brake caliper. Refer to BRC-45, "
WHEEL SENSORS" (ABS), BRC-116,
"WHEEL SENSORS" (ESP/TCS/ABS).
6. Remove brake caliper with piping connected from steering knuckle. Temporarily secure it on body with a
rope to avoid load on it. Refer to BR-27, "
FRONT DISC BRAKE" .
7. Remove left and right suspensions from steering knuckle under strut. Refer to FSU-5, "
FRONT SUSPEN-
SION ASSEMBLY" .

CO-1
ENGINE COOLING SYSTEM
B ENGINE
CONTENTS
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SECTION
A
CO

ENGINE COOLING SYSTEM
QR
PRECAUTIONS .......................................................... 3
Precautions for Liquid Gasket .................................. 3
LIQUID GASKET APPLICATION PROCEDURE ..... 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tools ........................................ 4
OVERHEATING CAUSE ANALYSIS .......................... 5
Troubleshooting Chart .............................................. 5
COOLING SYSTEM .................................................... 7
Cooling Circuit .......................................................... 7
System Chart ........................................................... 8
ENGINE COOLANT .................................................... 9
Inspection ................................................................. 9
LEVEL CHECK ..................................................... 9
LEAK CHECK ....................................................... 9
Changing Engine Coolant ........................................ 9
DRAINING ENGINE COOLANT ........................... 9
REFILLING ENGINE COOLANT ........................ 10
FLUSHING COOLING SYSTEM ......................... 10
RADIATOR ................................................................ 12
Removal and Installation ........................................ 12
REMOVAL ........................................................... 12
INSTALLATION ................................................... 13
INSPECTION AFTER INSTALLATION ............... 13
Checking Radiator Cap .......................................... 13
Checking Radiator .................................................. 13
RADIATOR (ALUMINUM TYPE) .............................. 14
Disassembly and Assembly ................................... 14
PREPARATION ................................................... 14
DISASSEMBLY ................................................... 14
ASSEMBLY ......................................................... 15
INSPECTION ...................................................... 17
COOLING FAN ......................................................... 18
Removal and Installation ........................................ 18
REMOVAL ........................................................... 18
INSTALLATION ................................................... 18
DISASSEMBLY AND ASSEMBLY ...................... 18WATER PUMP .......................................................... 20
Removal and Installation ........................................ 20
REMOVAL ........................................................... 20
INSPECTION AFTER REMOVAL ....................... 21
INSTALLATION ................................................... 21
INSPECTION AFTER INSTALLATION ................ 21
THERMOSTAT AND WATER CONTROL VALVE .... 22
Removal and Installation ........................................ 22
REMOVAL ........................................................... 22
INSPECTION AFTER REMOVAL ....................... 23
INSTALLATION ................................................... 23
INSPECTION AFTER INSTALLATION ................ 23
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 24
Standard and Limit .................................................. 24
CAPACITY ........................................................... 24
THERMOSTAT .................................................... 24
WATER CONTROL VALVE ................................. 24
RADIATOR .......................................................... 24
Tightening Torque ................................................... 24
YD22DDTi
PRECAUTIONS ........................................................ 25
Precautions For Liquid Gasket ............................... 25
LIQUID GASKET APPLICATION PROCEDURE ... 25
PREPARATION ......................................................... 26
Special Service Tools ............................................. 26
Commercial Service Tools ...................................... 26
OVERHEATING CAUSE ANALYSIS ........................ 27
Troubleshooting Chart ............................................ 27
COOLING SYSTEM .................................................. 29
Cooling Circuit ........................................................ 29
System Chart .......................................................... 30
ENGINE COOLANT .................................................. 31
Inspection ............................................................... 31
LEVEL CHECK .................................................... 31

CO-2 CHECKING RADIATOR SYSTEM FOR LEAKS ... 31
Changing Engine Coolant ....................................... 31
DRAINING ENGINE COOLANT .......................... 31
REFILLING ENGINE COOLANT ......................... 32
FLUSHING COOLING SYSTEM ......................... 33
RADIATOR ................................................................ 34
Removal and Installation ........................................ 34
REMOVAL ........................................................... 34
INSTALLATION .................................................... 34
INSPECTION AFTER INSTALLATION ................ 34
Checking Radiator Cap .......................................... 35
Checking Radiator .................................................. 35
COOLING FAN .......................................................... 36
Removal and Installation ........................................ 36
REMOVAL ........................................................... 36
INSTALLATION .................................................... 36
DISASSEMBLY AND ASSEMBLY ....................... 36
RADIATOR (ALUMINUM TYPE) ............................... 38
Disassembly and Assembly .................................... 38
PREPARATION ................................................... 38
DISASSEMBLY ................................................... 38
ASSEMBLY ......................................................... 39
INSPECTION ....................................................... 41WATER PUMP ........................................................... 42
Removal and Installation ......................................... 42
REMOVAL ............................................................ 42
INSPECTION AFTER REMOVAL ........................ 43
INSTALLATION .................................................... 43
INSPECTION AFTER INSTALLATION ................ 43
THERMOSTAT AND WATER PIPING ....................... 44
Removal and Installation ......................................... 44
REMOVAL ............................................................ 44
INSPECTION AFTER REMOVAL ........................ 45
INSTALLATION .................................................... 45
INSPECTION AFTER INSTALLATION ................ 45
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 46
Standard and Limit .................................................. 46
CAPACITY ........................................................... 46
THERMOSTAT ..................................................... 46
RADIATOR ........................................................... 46
Tightening Torque ................................................... 46

OVERHEATING CAUSE ANALYSIS
CO-5
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OVERHEATING CAUSE ANALYSISPFP:00012
Troubleshooting ChartEBS00KOD
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