2001 NISSAN X-TRAIL check oil

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
EM-11
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EM
Use the Chart Below to Help You Find the Cause of the Symptom.EBS00L7Q
1. Locate the area where noise occurs.
2. Confirm the type of noise.
3. Specify the operating condition of engine.
4. Check specified noise source.
If necessary, repair or replace these parts.
A: Closely related B: Related C: Sometimes related —: Not relatedLocation
of noiseType of
noiseOperating condition of engine
Source of
noiseCheck itemRefer-
ence page Before
warm-
upAfter
warm-
upWhen
start-
ingWhen
idlingWhen
racingWhile
driving
Top of
engine
Rocker
cover
Cylinder
headTicking or
clickingCA—AB—Tappet
noiseValve clearanceEM-53
Rattle C A — A B CCamshaft
bearing
noiseCamshaft journal clear-
ance
Camshaft runoutEM-51EM-51
Crank-
shaft pul-
ley
Cylinder
block
(Side of
engine)
Oil panSlap or
knock—A—BB—Piston pin
noisePiston and piston pin
clearance
Connecting rod bush-
ing oil clearance (Small
end)EM-89
EM-91
Slap or
rapA ——BBAPiston
slap noisePiston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsionEM-94EM-90
EM-90
EM-91
Knock A B C B B BConnect-
ing rod
bearing
noiseConnecting rod bush-
ing oil clearance (Small
end)
Connecting rod bear-
ing clearance (Big end)EM-91EM-91
Knock A B — A B CMain
bearing
noiseMain bearing oil clear-
ance
Crankshaft runoutEM-95EM-95
Front of
engine
Timing
chain
coverTapping or
tickingA A —BBBTiming
chain and
chain ten-
sioner
noiseTiming chain cracks
and wear
Timing chain tensioner
operationEM-37
Front of
engineSqueak-
ing or fizz-
ingAB—B—CDrive belts
(Sticking
or slip-
ping)Drive belts deflection
EM-12
CreakingA B ABABDrive belts
(Slipping)Idler pulley bearing
operation
Squall
CreakA B —BABWater
pump
noiseWater pump operationCO-18,
"WATER
PUMP"

EM-28
[QR]
OIL PAN AND OIL STRAINER
a. Apply liquid gasket thoroughly as in illustration.
Use Genuine Liquid Gasket or equivalent.
b. Install O-rings as front cover side.
c. Tighten bolts in numerical order as shown.
●No. 10, 11and 18 indicate double tightening of bolts No. 1, 2
and 3.
NOTE:
Refer to the below for locating bolts.
M6 × 20 mm (0.79 in): No. 18, 19
M8 × 25 mm (0.98 in): No. 1, 2, 3, 11
M8 x 45 mm (1.77 in): No. 4, 10, 13, 14, 15, 16
M8 x100 mm (3.97 in): No. 5, 6, 7, 8, 9
d. Tighten transmission joint bolts.
e. Install rear plate cover.
3. Install lower oil pan.
Use Genuine Liquid Gasket or equivalent.
●Tighten bolts in numerical order as shown.
4. Install oil pan drain plug.
●Refer to illustration of components of former page for installation direction of washer.
5. Install in the reverse order of removal after this step.
●Pour engine oil at least 30 minutes after oil pan is installed.
INSPECTION AFTER INSTALLATION
●Check engine oil level. Refer to LU-7, "ENGINE OIL" .
●Check for leakage of engine oil when engine is warmed.
SBIA0253E
SBIA0233E
SBIA0254E
KBIA0096E

EM-30
[QR]
SPARK PLUG
SPARK PLUG
PFP:22401
Removal and InstallationEBS00KNG
REMOVAL
1. Remove ignition coil. Refer to EM-29, "IGNITION COIL" .
2. Remove spark plug with suitable spark plug wrench.
CAUTION:
Do not drop or shock it.
INSPECTION AFTER REMOVAL
●Use standard type spark plug for normal condition.
●The hot type spark plug is suitable when fouling occurs with the standard type spark plug under conditions
such as.
–frequent engine starts.
–low ambient temperatures.
●The cold type spark plug is suitable when spark plug knock occurs with the standard type spark plug
under conditions such as.
–extended highway driving.
–frequent high engine revolution.
Check plug gap of each spark plug. Adjust or replace if necessary.
KBIA0237E
1. Ignition coil 2. Spark plug 3. Rocker cover
SEM294A
MakeNGK
Standard typeLFR5A-11
Hot typeLFR4A-11
Cold typeLFR6A-11
Spark plug gap: 1.0 - 1.1 mm (0.039 - 0.043 in)

FUEL INJECTOR AND FUEL TUBE
EM-33
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EM
●Do not remove or disassembly parts unless instructed as shown in the figure.
REMOVAL
1. Release fuel pressure. Refer to EC-775, "FUEL PRESSURE RELEASE" [QR20DE (WITH EURO-OBD)],
EC-1139, "
FUEL PRESSURE RELEASE" [QR20DE (WITHOUT EURO-OBD)], EC-42, "FUEL PRES-
SURE RELEASE" [QR25DE (WITH EURO-OBD)] or EC-452, "FUEL PRESSURE RELEASE" [QR25DE
(WITHOUT EURO-OBD)].
2. Remove air duct, air cleaner case (upper) assembly.
3. Disconnect fuel hose quick connector at fuel tube side.
●Regarding how to disconnect and connect quick connector, Refer to EM-16, "INTAKE MANIFOLD" .
CAUTION:
●Prepare a container of cloth for spilled fuel.
●This operation should be performed, in a place where free from fire.
●While hoses are disconnected seal their openings with vinyl bag or similar material to prevent
foreign material from entering them.
4. Remove intake manifold collector. Refer to EM-16, "
INTAKE MANIFOLD" .
5. Disconnect sub-harness for injector at engine front side, and remove it from bracket.
6. Loosen mounting bolts in the reverse order in the figure, and
remove fuel tube and fuel injector assembly.
7. Remove fuel tube and fuel injector assembly.
●Release clip and remove it.
●Pull fuel injector straight out of fuel tube.
●Be careful not to damage nozzle part.
●Avoid any impact such as a dropping.
●Do not disassemble or adjust it.
INSTALLATION
1. Install O-rings to fuel injector paying attention to the items below.
●Lubricate O-rings by smearing new engine oil.
●Be careful not to scratch it with a tool or fingernails dur-
ing installation. Also be careful not to twist or stretch O-
ring. If O-ring was stretched while it is attached, do no
insert it into fuel tube immediately.
2. Install fuel injector to fuel tube with the following procedure.
●Insert clip into clip mounting groove on fuel injector.
●Insert clip so that projection A of fuel injector matches notch A
of the clip.
●Do not reuse clip. Replace it with a new one.
●Be careful to keep clip from interfering with O-ring. If interfer-
ence occurs, replace O-ring.
3. Insert fuel injector into fuel tube with clip attached.
●Insert it while matching it to the axial center.
●Insert fuel injector so that projection B of fuel injector matches
notch B of the clip.
●Make sure that fuel tube flange is securely fixed in flange fixing groove on clip.
●Make sure that installation is complete by checking that fuel injector does not rotate or come off.
4. Install fuel tube assembly with the following procedure.
a. Insert the tip of each fuel injector into intake manifold.
KBIA0239E
O-ring color
Fuel tube side (Upper side) : Black
Intake manifold side (Lower side) : Green
SBIA0439E

EM-42
[QR]
TIMING CHAIN
2. Tighten mounting bolt in the numerical order shown in the figure
with the following procedure, and install balancer unit.
CAUTION:
When reusing a mounting bolt, check its outer diameter
before installation, Refer to EM-41, "
INSPECTION AFTER
REMOVAL" .
a. Apply new engine oil to threads and seat surfaces of mounting
bolts.
b. Tighten them to 45.2 to 51.0 N·m (4.6 to 5.2 kg-m, 34 to 37 ft-lb).
c. Turn them another 90 to 95° (Target: 90°).
d. Fully loosen to 0 N·m (0 kg-m, 0 ft-lb).
●Loosen in the reverse order of tightening.
e. Tighten them to 45.2 to 51.0 N·m (4.6 to 5.2 kg-m, 34 to 37 ft-lb).
f. Turn them another 90 to 95° (Target: 90°).
CAUTION:
Check tightening angle with an angle wrench or a protrac-
tor. Do not make judgment by visual check alone.
3. Install crankshaft sprocket and timing chain for balancer unit.
●Make sure that crankshaft sprocket is positioned with mating
marks on block and sprocket meeting at the top.
●Install it by lining up mating marks on each sprocket and tim-
ing chain.
4. Install timing chain tensioner for balancer unit.
NOTE:
Chain guide and tensioner move freely with the caulking pin as
the axle. Therefore, bolt hole position of the three points could
be changed during removal. If points change, temporarily fix the
two mounting bolts on the chain guide, and move the tensioner
to mate the bolt holes.
●Be careful not to let mating marks of each sprocket and timing
chain slip.
●After installation, make sure the mating marks have not
slipped, then remove stopper pin and release tensioner.
KBIA0122E
KBIA0080E
KBIA0123E
KBIA0124E

TIMING CHAIN
EM-43
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EM
5. Install timing chain and related parts.
●Install by lining up mating marks on each sprocket and timing
chain.
NOTE:
Before installing chain tensioner, it is possible to change the
position of mating mark on timing chain for that on each
sprocket for alignment.
CAUTION:
For the above reason, after the mating marks are aligned,
keep them aligned by holding them with a hand.
●Before and after installing chain tensioner, check again to
make sure that mating marks have not slipped.
●After installing chain tensioner, remove stopper pin, and make
sure that tensioner moves freely.
●To avoid skipped teeth, do not move crankshaft and camshaft
until front cover is installed.
6. Install front oil seal to front cover.
●Using a drift of 56 mm (2.20 in) dia, press oil seal in until it is
flush with front end surface of front cover.
CAUTION:
Be careful not to cause damage or burr to circumference of
oil seal.
7. Install front cover with the following procedure.
a. Install O-rings to cylinder head and cylinder block.
b. Apply liquid gasket to positions specified in the figure.
Use Genuine Liquid gasket or equivalent.
●Application instruction differs depending on the part.
c. Make sure that mating marks of timing chain and each sprocket
are still aligned. Then install front cover.
CAUTION:
●Do not let air conditioning and power steering piping
interfere with upper part of front cover.
●Be careful not to damage front oil seal by interference
with front end of crankshaft.
SBIA0265E
SBIA0266E
SBIA0267E

TIMING CHAIN
EM-45
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EM
●Secure crankshaft pulley with a pulley holder, and tighten the bolt.
●Perform angle tightening with the following procedure.
a. Apply new engine oil to thread and seat surfaces of mounting bolt.
b. Tighten to 37.3 to 47.1 N·m (3.8 to 4.8 kg-m, 28 to 34 ft-lb).
c. put a paint mark on front cover, mating with any one of six easy
to recognize stamp marks on bolt flange.
d. Turn another 60° to 66° [Target: 60°].
●Check vertical mounting angle with movement of one stamp
mark.
12. Install remaining parts in reverse order of removal.
SBIA0268E

CYLINDER HEAD
EM-59
[QR]
C
D
E
F
G
H
I
J
K
L
MA
EM
CYLINDER HEADPFP:11041
On-Vehicle ServiceEBS00KNP
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-775, "
FUEL PRESSURE RELEASE" [QR20DE (WITH EURO-OBD)],
EC-1139, "
FUEL PRESSURE RELEASE" [QR20DE (WITHOUT EURO-OBD)], EC-42, "FUEL PRES-
SURE RELEASE" [QR25DE (WITH EURO-OBD)] or EC-452, "FUEL PRESSURE RELEASE" [QR25DE
(WITHOUT EURO-OBD)].
3. Remove ignition coil and spark plug from each cylinder. Refer to EM-29, "
IGNITION COIL" and EM-30,
"SPARK PLUG" .
4. Connect engine tachometer (not required in use of CONSULT-II).
5. Disconnect fuel injector sub-harness to avoid fuel injection dur-
ing measurement.
6. Install compression tester with adapter onto spark plug hole.
●Use compression gauge whose picking up end inserted to
spark plug hole is smaller than 20 mm (0.79 in) in diameter.
Otherwise, it may be caught by cylinder head during removal.
7. With accelerator pedal fully depressed, turn ignition switch to
“START” for cranking. When the gauge pointer stabilizes, read
the compression pressure and engine rpm. Perform these steps
to check each cylinder.
Compression pressure
Unit: kPa (bar, kg/cm2 , psi) /rpm
CAUTION:
Always use a fully changed battery to obtain specified engine speed.
KBIA0269E
KBIA0130E
SEM387C
Engine type Standard Minimum Deference limit between cylinders
QR20DE 1,190 (11.9, 12.1, 173) / 250 990 (9.9, 10.1, 144) / 250
100 (1.0, 1.0, 14) / 250
QR25DE 1,250 (12.5, 12.8, 181.3) / 250 1,060 (10.6, 10.8, 153.7) / 250