2001 NISSAN X-TRAIL oil

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
EM-11
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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"

INTAKE MANIFOLD
EM-21
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For QR25DE
Tighten in numerical order as shown in the figure.
NOTE:
No. 6 means double tightening of bolt No. 1.
Intake Manifold Collector Bolts and Nuts
For QR20DE
Tighten in numerical order as shown in the figure.
NOTE:
No. 6 means double tightening of bolts No. 1.
For QR25DE
Tighten in numerical order as shown in the figure.
NOTE:
No. 8 means double tightening of bolts No. 1.
Electric Throttle Control Actuator
●Tighten fixing bolts of electric throttle control actuator equally
and diagonally in several steps and in order shown.
●After installation perform procedure, refer to EM-22, "INSPEC-
TION AFTER INSTALLATION" .
Connecting Quick Connector of Fuel Hose (Engine side)
Install quick connector as follows.
1. Make sure no foreign substances are deposited in and around tube and quick connector and no damage
on them.
2. Thinly apply new engine oil around the fuel tube tip end.
SBIA0231E
KBIA0234E
SBIA0230E
EMJ1612D

EM-26
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OIL PAN AND OIL STRAINER
OIL PAN AND OIL STRAINER
P F P : 1111 0
Removal and InstallationEBS00KNE
REMOVAL
WARNING:
To avoid the danger of being scalded, never drain the engine oil when the engine is hot.
1. Remove engine undercover both side.
2. Drain engine oil. Refer to LU-8, "
Changing Engine Oil" .
3. Remove lower oil pan bolts, Loosen bolts in the reverse order of
that shown in the figure.
KBIA0095E
1. Oil level gauge guide 2. Oil pan upper 3. Cylinder block
4. Oil filter 5. Oil strainer 6. Drain plug
7. Oil pan lower 8. Rear plate cover
KBIA0096E

OIL PAN AND OIL STRAINER
EM-27
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4. Insert Tool (Seal cutter) between lower and upper oil pan slide
tool by tapping on the side of the tool with a hammer.
5. Remove lower oil pan.
6. Remove drive belts. Refer to EM-12, "
DRIVE BELTS" .
7. Remove A/C compressor with piping connected. And locate it
aside temporarily with ropes or equivalent not to disturb the fol-
lowing work
8. Remove front exhaust tube and its support. Refer to EX-2,
"EXHAUST SYSTEM" .
9. Set a suitable transmission jack under transaxle and hoist
engine with engine slinger.
10. Remove center member.
11. Remove rear plate cover, and four engine-to transaxle bolts.
12. Loosen bolts in reverse order of illustration to remove upper oil
pan.
●Disregard No. 1, 2 and 3 when loosening.
●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.
13. 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.
SEM365EA
PBIC0257E
SBIA0233E
SEM365EA

EM-28
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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

IGNITION COIL
EM-29
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IGNITION COILPFP:22448
Removal and InstallationEBS00KNF
REMOVAL
1. Disconnect harness connector from ignition coil.
2. Remove ignition coil.
3. Remove spark plug.
CAUTION:
Do not drop or shock it.
INSTALLATION
Install in the reverse order of removal.
KBIA0237E
1. Ignition coil 2. Spark plug 3. Rocker cover

EM-30
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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)

EM-32
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FUEL INJECTOR AND FUEL TUBE
FUEL INJECTOR AND FUEL TUBE
PFP:16600
Removal and InstallationEBS00KNH
QR20DE
CAUTION:
●Apply new engine oil when installing the parts that specified to do so in the figure.
●Do not remove or disassembly parts unless instructed as shown in the figure.
QR25DE
CAUTION:
●Apply new engine oil when installing the parts that specified to do so in the figure.
KBIA0238E
1. Fuel hose 2. Quick connector cap 3. Sub harness
4. Fuel tube 5. Clip 6. O-ring
7. Fuel injector 8. Insulator
SBIA0247E
1. Fuel hose 2. Quick connector cap 3. Sub harness
4. Fuel tube 5. Clip 6. O-ring
7. Fuel injector 8. Insulator