Page 7 of 4555

PRECAUTIONS
GI-5
C
D
E
F
G
H
I
J
K
L
MB
GI
Use approved bonding agent, sealants or their equivalents when required.
Use tools and recommended special tools where specified for safe and efficient service repairs.
When repairing the fuel, oil, water, vacuum or exhaust systems, check all affected lines for leaks.
Before servicing the vehicle:
Protect fenders, upholstery and carpeting with appropriate cov-
ers.
Take caution that keys, buckles or buttons do not scratch paint.
WARNING:
To prevent ECM from storing the diagnostic trouble codes, do not carelessly disconnect the harness
connectors which are related to the engine control system and TCM (transmission control module)
system. The connectors should be disconnected only when working according to the WORK FLOW of
TROUBLE DIAGNOSES in EC and AT sections.
Precautions for All Mode 4 × 4 SystemEAS000GQ
Even if the 2WD mode is selected, the All mode 4 × 4 system occasionally changes from 2WD to 4WD auto-
matically depending on the driving conditions.
When spinning the front wheels by running the engine with the front wheels jacked up or mounted on the free
rollers / or a chassis dynamometer, be careful because the vehicle may suddenly move due to the driving
force from the rear wheels.
To avoid personal injury and vehicle damage, use one of the following methods when working with the front
wheels drive force and spinning freely.
Remove the propeller shaft.
Use free rollers / chassis dynamometer designed for 4WD vehicles.
Precautions for Three Way CatalystEAS000FR
If a large amount of unburned fuel flows into the catalyst, the catalyst temperature will be excessively high. To
prevent this, follow the instructions.
Use unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.
When checking for ignition spark or measuring engine compression, make tests quickly and only when
necessary.
Do not run engine when the fuel tank level is low, otherwise the engine may misfire, causing damage to
the catalyst.
Do not place the vehicle on flammable material. Keep flammable material off the exhaust pipe and the three
way catalyst.
Precautions for FuelEAS000P9
GASOLINE ENGINE
Use unleaded gasoline with an octane rating of at least 95 (RON).
CAUTION:
Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Using a fuel
other than that specified could adversely affect the emission control devices and systems, and could
also affect the warranty coverage validity.
DIESEL ENGINE
Diesel fuel of at least 50 cetane.
If two types of diesel fuel are available, use summer or winter fuel properly according to the following temper-
ature conditions.
Above –7°C (20°F) ... Summer type diesel fuel.
Below –7°C (20°F) ... Winter type diesel fuel.
SGI234
Page 8 of 4555

GI-6
PRECAUTIONS
CAUTION:
Do not use home heating oil, gasoline or other alternate fuels in your diesel engine. The use of
those can cause engine damage.
Do not use summer fuel at temperatures below –7°C (20°F). The cold temperatures will cause wax
to form in the fuel. As a result, it may prevent the engine from running smoothly.
Do not add gasoline or other alternate fuels to diesel fuel.
Precautions for Multiport Fuel Injection System or Engine Control SystemEAS000FT
Before connecting or disconnecting any harness connector for
the multiport fuel injection system or ECM:
Turn ignition switch to “OFF” position.
Disconnect negative battery terminal.
Otherwise, there may be damage to ECM.
Before disconnecting pressurized fuel line from fuel pump to
injectors, be sure to release fuel pressure.
Be careful not to jar components such as ECM and mass air
flow sensor.
Precautions for Turbocharger (If Equipped)EAS000FU
The turbocharger turbine revolves at extremely high speeds and
becomes very hot. Therefore, it is essential to maintain a clean sup-
ply of oil flowing through the turbocharger and to follow all required
maintenance instructions and operating procedures.
Always use the recommended oil. Follow the instructions for
proper time to change the oil and proper oil level.
Avoid accelerating engine to a high rpm immediately after start-
ing.
If engine had been operating at high rpm for an extended period
of time, let it idle for a few minutes prior to shutting if off.
Precautions for HosesEAS000FV
HOSE REMOVAL AND INSTALLATION
To prevent damage to rubber hose, do not pry off rubber hose
with tapered tool or screwdriver.
To reinstall the rubber hose securely, make sure that hose inser-
tion length and orientation is correct. (If tube is equipped with
hose stopper, insert rubber hose into tube until it butts up
against hose stopper.)
SGI787
SGI292
SMA019D
SMA020D
Page 34 of 4555
GI-32
SERVICE INFORMATION FOR ELECTRICAL INCIDENT
Do not apply excessive shock to the control unit by dropping or
hitting it.
Be careful to prevent condensation in the control unit due to
rapid temperature changes and do not let water or rain get on it.
If water is found in the control unit, dry it fully and then install it in
the vehicle.
Be careful not to let oil to get on the control unit connector.
Avoid cleaning the control unit with volatile oil.
Do not disassemble the control unit, and do not remove the
upper and lower covers.
When using a DMM, be careful not to let test probes get close to
each other to prevent the power transistor in the control unit
from damaging battery voltage because of short circuiting.
When checking input and output signals of the control unit, use
the specified check adapter.
SAIA0255E
SEF348N
Page 86 of 4555
EM-32
[QR]
SPARK PLUG
SPARK PLUG PFP:22401
Removal and InstallationEBS00KNG
REMOVAL
1. Remove ignition coil. Refer to EM-31, "IGNITION COIL" .
2. Remove spark plug with spark plug wrench (commercial service
tool).
CAUTION:
Do not drop or shock it.
INSPECTION AFTER REMOVAL (EXCEPT RUSSIA)
Use standard type spark plug for normal condition.
Hot type spark plug is suitable when fouling occurs with standard type spark plug under conditions such as:
Frequent engine starts
Low ambient temperatures
Cold type spark plug is suitable when spark plug knock occurs with standard type spark plug under conditions
such as:
Extended highway driving
Frequent high engine revolution
1. Ignition coil 2. Spark plug 3. Rocker cover
KBIA1974J
SEM294A
MakeNGK
Standard typeLFR5A-11
Hot typeLFR4A-11
Cold typeLFR6A-11
Page 241 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual CAMSHAFT
EM-187
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
Measure the valve clearance using the feeler gauge when
engine is cool (at normal temperature).
Valve clearance:
Unit: mm (in)
*: Reference data NISSAN X-TRAIL 2005 Service Repair Manual CAMSHAFT
EM-187
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
Measure the valve clearance using the feeler gauge when
engine is cool (at normal temperature).
Valve clearance:
Unit: mm (in)
*: Reference data](/manual-img/5/57403/w960_57403-240.png)
CAMSHAFT
EM-187
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
Measure the valve clearance using the feeler gauge when
engine is cool (at normal temperature).
Valve clearance:
Unit: mm (in)
*: Reference data approximately 80°C (176°F)
8. Set the No. 4 cylinder at TDC by rotating the crankshaft clockwise once. (360 degrees)
9. While referring to the figure, measure the valve clearance
marked in the table below.
10. If the valve clearance is outside the specification, adjust as follows.
ADJUSTMENTS
Remove adjusting shim for parts which are outside the specified valve clearance.
1. Extract engine oil on the upper side of the cylinder head (for the air blowing in step 6).
2. Rotate crankshaft to face the camshaft for adjusting shims that
are to be removed upward.
SBIA0181E
Item Cold Hot* (Reference data)
Intake 0.24 -0.32 (0.0094 - 0.0126) 0.274 - 0.386 (0.0108 - 0.0152)
Exhaust 0.26 - 0.34 (0.0102 - 0.0134) 0.308 - 0.432 (0.0121 - 0.0170)
Measuring pointNo. 1No. 2No. 3No. 4
INT EXH INT EXH INT EXH INT EXH
When the No. 4
cylinder is in the
TDCXX XX
SBIA0182E
SBIA0183E
Page 321 of 4555
SERVICE DATA AND SPECIFICATIONS (SDS)
EM-267
[YD22DDTi]
C
D
E
F
G
H
I
J
K
L
MA
EM
*1 Rocker cover1)
7.8 (0.8, 69)*2
2)
7.8 (0.8, 69) *2
*1 Camshaft bracket 13 to 15 bolts 1) 2 (0.2, 1)
1 to 12 bolts 2) 2 (0.2, 1)
3) 6 (0.6, 4)
4) 12.5 (1.3, 9)
*1 Front chain case
7.9 (0.8, 70)*
2
Chain tensioner
9.6 (0.98, 85)*2
Tension guide23.5 (2.4, 18)
Slack guide23.5 (2.4, 18)
Camshaft sprocket 143 (15, 105)
*1 Oil pump housing12.5 (1.3, 9)
Power steering oil pump 53.5 (5.5, 39)
*1 Rear chain case12.5 (1.3, 9)
Engine coolant temperature sensor 13.5 (1.4, 10)
*1 Cylinder head 1) 39.2 (4.0, 29)
2) 180 degrees
3) 0 (0, 0)
4) 39.2 (4.0, 29)
5) 90 degrees (angle tightening)
6) 90 degrees (angle tightening)
Glow plug20.5 (2.1, 15)
*1 Flywheel108 (11, 80)
Oil pressure switch15 (1.5, 11)
Oil jet
8.4 (0.86, 74)*
2
Oil jet relief valve49 (5.0, 36)
Rear oil seal retainer12.5 (1.3, 9)
Page 330 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual LU-8
[QR]
ENGINE OIL
3. Disconnect harness connector at oil pressure switch, and
remove oil pressure switch using a deep socket (commercial
service tool).
4. Install oil pressure gauge and hose (spe NISSAN X-TRAIL 2005 Service Repair Manual LU-8
[QR]
ENGINE OIL
3. Disconnect harness connector at oil pressure switch, and
remove oil pressure switch using a deep socket (commercial
service tool).
4. Install oil pressure gauge and hose (spe](/manual-img/5/57403/w960_57403-329.png)
LU-8
[QR]
ENGINE OIL
3. Disconnect harness connector at oil pressure switch, and
remove oil pressure switch using a deep socket (commercial
service tool).
4. Install oil pressure gauge and hose (special service tool).
5. Start engine and warm it up to normal operating temperature.
6. Check oil pressure with engine running under no-load.
NOTE:
When engine oil temperature is low, engine oil pressure becomes high.
Engine oil pressure [Engine oil temperature at 80°C (176°F)]
If difference is extreme, check oil passage and oil pump for oil leaks.
7. After the inspections, install oil pressure switch as follows:
a. Remove old liquid gasket adhering to oil pressure switch and engine.
b. Apply liquid gasket and tighten oil pressure switch to specification.
Use Genuine Thread Sealant or equivalent.
c. After warming up engine, make sure there is no leaks of engine oil with running engine.
Changing Engine OilEBS00KO4
WARNING:
Be careful not to burn yourself, as engine oil may be hot.
Prolonged and repeated contact with used engine oil may cause skin cancer; try to avoid direct
skin contact with used engine oil. If skin contact is made, wash thoroughly with soap or hand
cleaner as soon as possible.
1. Warm up engine, put vehicle horizontally and check for oil leakage from engine components. Refer to LU-
7, "ENGINE OIL LEAKAGE" .
2. Stop engine and wait for 10 minutes.
PBIC2272E
SLC926-A
Engine speed
rpm Approximate discharge pressure
kPa (bar, kg/cm2 , psi)
Idle speed More than 98 (0.98, 1.0, 14)
2,000 More than 294 (2.94, 3.0, 43)
: 14.8 N·m (1.5 kg-m, 11 ft-lb)
Page 331 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual ENGINE OIL
LU-9
[QR]
C
D
E
F
G
H
I
J
K
L
MA
LU
3. Loosen oil filler cap and then remove drain plug.
4. Drain engine oil.
5. Install drain plug with new washer. Refer to EM-27, "
OIL PAN
AND OIL STRA NISSAN X-TRAIL 2005 Service Repair Manual ENGINE OIL
LU-9
[QR]
C
D
E
F
G
H
I
J
K
L
MA
LU
3. Loosen oil filler cap and then remove drain plug.
4. Drain engine oil.
5. Install drain plug with new washer. Refer to EM-27, "
OIL PAN
AND OIL STRA](/manual-img/5/57403/w960_57403-330.png)
ENGINE OIL
LU-9
[QR]
C
D
E
F
G
H
I
J
K
L
MA
LU
3. Loosen oil filler cap and then remove drain plug.
4. Drain engine oil.
5. Install drain plug with new washer. Refer to EM-27, "
OIL PAN
AND OIL STRAINER" .
CAUTION:
Be sure to clean drain plug and install with new washer.
6. Refill with new engine oil.
Engine oil specification and viscosity:
Refer to MA-17, "
RECOMMENDED FLUIDS AND LUBRICANTS" .
Engine oil capacity (Approximate):
Unit: (lmp qt)
CAUTION:
The refill capacity depends on the engine oil temperature and drain time. Use these specifica-
tions for reference only.
Always use oil level gauge to determine the proper amount of engine oil in the engine.
7. Warm up engine and check area around drain plug and oil filter for oil leakage.
8. Stop engine and wait for 10 minutes.
9. Check the engine oil level. Refer to LU-7, "
ENGINE OIL LEVEL" . Oil pan drain plug:
: 34.3 N·m (3.5 kg-m, 25 ft-lb)
PBIC2410E
Drain and refill With oil filter change 4.1 (3-5/8)
Without oil filter change 3.7 (3-1/4)
Dry engine (Overhaul)4.7 (4-1/8)