NISSAN X-TRAIL 2001 Service Repair Manual

EXHAUST MANIFOLD AND TURBOCHARGER
EM-131
[YD22DDTi]
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TURBINE WHEEL
●Check that there is no engine oil adhesion.
●Check that there is no carbon accumulation.
●Check that blades of the turbine wheel are not bent or broken.
●Check that the turbine wheel does not interfere with the turbine
housing.
COMPRESSOR WHEEL
●Check that there is no engine oil adhesion inside the air inlet.
●Check that the compressor wheel does not interfere with the
compressor housing.
●Check that the wheel is not bent or broken.
WASTEGATE VALVE ACTUATOR
●Connect the handy pump to the actuator, and check that the rod
strokes smoothly in compliance with the following pressure.
●Pressure to be applied at actuator part to move rod end as fol-
lows:
SEM272G
SEM273G
Standard (Pressure/rod stroke amount):
: 150.80 - 156.20 kPa (1,508 - 1,562 mbar, 1,131 - 1,172
mmHg, 44.0 - 46.2 inHg)/0.38 mm (0.0150 in)
: 176.50 - 185.90 kPa (1,765 - 1,859 mbar, 1,324 - 1,394
mmHg, 52.2 - 54.9 inHg)/4.0 mm (0.157 in)
SEM274G

EM-132
[YD22DDTi]
EXHAUST MANIFOLD AND TURBOCHARGER
TROUBLE DIAGNOSIS OF TURBOCHARGER
Preliminary check:
●Check that the engine oil level is between MIN and MAX of the dipstick. (When the engine oil amount is
more than MAX, the engine oil flows into the inlet duct through the blow-by gas passage, and the turbo-
charger is misjudged failure.)
●Ask the customer if he/she always runs the vehicle in idle engine speed to cool the engine oil down after
driving.
●Replace the turbocharger assembly when any malfunction is found after unit inspections specified in the
table below.
●If no malfunction is found after the unit inspections, judge that the turbocharger body has no failure. Check
the other parts again.
A: Large possibility
B: Medium possibility
C: Small possibilityInspection item Inspection resultSymptom
(when each inspection item meets each inspection result)
Engine oil
leakageSmoke NoiseInsufficient power/
acceleration failure
Turbine wheelEngine oil leaks C A C C
Carbon is accumulated C A B B
Friction with housing C B A B
Blades are bent or broken — — A A
Compressor wheelInside the air inlet is seriously con-
taminated by engine oil.BB— —
Friction with housing C B A B
Blades are bent or broken — — A A
After checking both turbine and
compressor, inspect rotor shaft
end play.There is resistance when the rotor
shaft is rotated by your fingertips.—CC B
The rotor shaft sometimes does not
rotate by your fingertips.——— A
There is too much play in the bear-
ing.CCB C
Oil return portCarbon or sludge is accumulated in
the waste oil hole.CAC C

OIL PAN AND OIL STRAINER
EM-133
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OIL PAN AND OIL STRAINERP F P : 1111 0
Removal and InstallationEBS00LRK
REMOVAL
WARNING:
To avoid the danger of being scalded, never drain the engine oil when the engine is hot.
1. Remove engine undercover at both side.
2. Drain engine oil. Refer to LU-19, "
Changing Engine Oil" .
3. Remove lower oil pan bolts, Loosen bolts in the reverse order of
that shown in the figure.
PBIC1140E
1. Rear plate cover 2. Oil pan upper 3. Oil strainer
4. Drain plug 5. Oil pan lower 6 Crankshaft position sensor (TDC)
SBIA0161E

EM-134
[YD22DDTi]
OIL PAN AND OIL STRAINER
4. Remove lower oil pan.
a. Insert Tool (seal cutter) between upper oil pan and lower oil pan.
●Be careful not to damage aluminum mating surface.
●Do not insert screwdriver, or oil pan flange will be
deformed.
b. Slide Tool by tapping on the side of the Tool with a hammer.
c. Remove lower oil pan.
5. Remove drive belts.
6. Remove A/C compressor and bracket.
7. Remove front exhaust tube and its support.
8. Set a suitable transmission jack under transaxle and hoist
engine with engine slinger. Refer to EM-193, "
Removal and
Installation" .
9. Remove center member.
10. Remove crankshaft position sensor (TDC) from transaxle.
CAUTION:
●Avoid impacts such as a dropping.
●Do not disassemble.
●Keep it away from metal particles.
●Do not place sensor close to magnetic materials.
11. Remove rear plate cover and four engine-to transaxle bolts.
12. Remove catalyst and rear diffuser. Refer to EM-126, "
Removal
and Installation" .
SEM544G
SEM545G
JEM553G
PBIB0416E

OIL PAN AND OIL STRAINER
EM-135
[YD22DDTi]
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13. Loosen bolts in reverse order of illustration to remove upper oil
pan.
14. Remove upper oil pan.
●Insert Tool (Seal cutter) between upper oil pan and cylinder
block. Slide tool by tapping on the side of the tool with a ham-
mer. Remove oil pan.
●Be careful not to damage aluminum mating surface.
●Do not insert screwdriver, or oil pan flange will be
deformed.
15. Remove oil strainer.
INSPECTION AFTER REMOVAL
Clean oil strainer if any object attached.
INSTALLATION
1. Install oil strainer.
2. Install upper oil pan in the order below.
a. Use a scraper to remove old liquid gasket from mating surfaces.
●Also remove old liquid gasket from mating surface of cylinder block, front cover and lower oil
pan.
●Remove old liquid gasket from the bolt hole and thread.
b. Apply a continuous bead of liquid gasket to mating surface of
aluminum oil pan.
●Use Genuine Liquid Gasket or equivalent.
SBIA0162E
SEM365EA
JEM117G
SEM159F

EM-136
[YD22DDTi]
OIL PAN AND OIL STRAINER
c. Apply Genuine Liquid Gasket or equivalent, to areas shown in
the figure.
●At the 8 bolt holes marked , liquid gasket should be
applied outside holes.
●Be sure liquid gasket is 3.5 to 4.5 mm (0.138 to 0.177 in)
or 4.5 to 5.5 mm (0.177 to 0.217 in) wide. (Be careful that
the diameter of the silicon bead is different around the
front.)
●Attaching should be done within 5 minutes after coating.
d. Install upper oil pan.
●Tighten bolts in numerical order to specified torque.
●Bolt dimensions vary depending on the installation location.
Refer to the following and use appropriate bolts.
●The shank length under the bolt neck above is the length of
the threaded part (pilot portion not included).
3. Tighten transaxle joint bolts.
4. Install rear plate cover.
5. Install center member.
6. Install crankshaft position sensor (TDC).
7. Install lower oil pan.
a. Use a scraper to remove old liquid gasket from mating surfaces.
●Also remove old liquid gasket from mating surface of
upper oil pan.
JEM118G
M6 x 30 mm (1.18 in) : Bolt No. 15, 16
M8 x 25 mm (0.98 in) : Bolt No. 3, 4, 9, 10
M8 x 60 mm (2.36 in) : Bolt No. 1, 2, 5, 6, 7, 8,
11, 12, 13, 14
SBIA0162E
PBIB0416E
SBIA0163E

OIL PAN AND OIL STRAINER
EM-137
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b. Apply a continuous bead of liquid gasket to mating surface of
lower oil pan.
Use Genuine Liquid Gasket or equivalent.
●Be sure liquid gasket is 3.5 to 4.5 mm (0.138 to 0.177 in)
wide.
●Attaching should be done within 5 minutes after coating.
8. Install oil pan drain plug.
●Refer to illustration of components parts for installation direc-
tion of washer.
9. Install in the reverse order of removal after this step.
●Pour engine oil or start engine at least 30 minutes after
oil pan is installed.
INSPECTION AFTER INSTALLATION
●Check engine oil level. Refer to LU-18, "ENGINE OIL" .
●Check for leakage of engine oil when engine is warmed.
SEM159F
SBIA0164E
SBIA0161E

EM-138
[YD22DDTi]
GLOW PLUG
GLOW PLUG
PFP:22401
Removal and InstallationEBS00LRL
REMOVAL
CAUTION:
Remove glow plug only if necessary. If carbon adheres, it may be stuck and broken.
1. Remove charge air cooler cover. Refer to EM-122, "
Removal and Installation" .
2. Remove charge air cooler and bracket.
3. Disconnect harness connector from glow plate.
4. Remove glow nut to remove glow plate.
5. Remove glow plug.
CAUTION:
●When removing or installing, do not use such tools as an air impact wrench.
●Handle it carefully without giving any impact, even after removal. [As a guide, if it drops from
height of 10 cm (3.94 in) or higher, always replace it.]
INSTALLATION
1. Remove adhered carbon from glow plug installation hole with a reamer.
2. Install glow plug.
3. Install remaining parts in reverse order of removal.
SBIA0165E
1. Glow plate 2. Glow harness 3. Glow nut
4. Cap 5. Glow plug

VACUUM PUMP
EM-139
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VACUUM PUMPPFP:41920
Removal and InstallationEBS00LRM
MODELS PRODUCED BEFORE MARCH 2001
SBIA0166E

EM-140
[YD22DDTi]
VACUUM PUMP
MODELS PRODUCED SINCE APRIL 2001
INSPECTION BEFORE REMOVAL
1. Disconnect vacuum hose, and connect a vacuum gauge via 3-way connector.
●Disconnect point where vacuum from vacuum pump can be measured directly and install 3-way con-
nector.
2. Start engine and measure generated vacuum at idle speed.
●If out of standard, check for air suction in vacuum route, and measure again.
●If still outside of standard, replace vacuum pump.
REMOVAL
1. Drain engine coolant. Refer to CO-29, "Changing Engine Coolant" .
2. Remove air duct and air cleaner case. Refer to EM-120, "
Removal and Installation" .
3. Remove charge air cooler and bracket. Refer to EM-122, "
Removal and Installation" .
4. Disconnect harness connector from fuel injector.
5. Remove injection tube. Refer to EM-144, "
Removal and Installation" .
6. Remove fuel injector oil seal.
7. Remove rocker cover. Refer to EM-156, "
Removal and Installation" .
8. Remove spill tube. Refer to EM-144, "
Removal and Installation" .
9. Remove nozzle support from NO.2 cylinder and fuel injector. Refer to EM-144, "
Removal and Installation"
.
10. Remove air inlet pipes. Refer to EM-127, "
Removal and Installation" .
11. Remove exhaust manifold cover.
12. Disconnect electronic EGR volume control valve water hose and harness.
13. Disconnect heater hose.
14. Remove EGR cooler.
SBIA0325E
Standard:
– 86.6 to – 101.3 kPa (– 866 to – 1,013 mbar, – 650 to – 760 mmHg, – 25.59 to – 29.92 inHg)