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INTAKE MANIFOLD
EM-23
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●Perform procedures for “Throttle Valve Closed Position Learning” after finishing repairs. Refer to EC-
772, "Throttle Valve Closed Position Learning" [QR20DE (WITH EURO-OBD)], EC-1136, "Throttle
Valve Closed Position Learning" [QR20DE (WITHOUT EURO-OBD)], EC-39, "Throttle Valve Closed
Position Learning" [QR25DE (WITH EURO-OBD)] or EC-449, "Throttle Valve Closed Position Learn-
ing" [QR25DE (WITHOUT EURO-OBD)].
●If electric throttle control actuator is replaced, perform procedures for “Idle Air Volume Learning” after
finishing repairs. Refer to EC-772, "
Idle Air Volume Learning" [QR20DE (WITH EURO-OBD)], EC-
11 3 7 , "Idle Air Volume Learning" [QR20DE WITHOUT EURO-OBD)], EC-39, "Idle Air Volume Learn-
ing" [QR25DE (WITH EURO-OBD)] or EC-450, "Idle Air Volume Learning" [QR25DE (WITHOUT
EURO-OBD)].
Page 74 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual EM-24
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EXHAUST MANIFOLD AND THREE WAY CATALYST
EXHAUST MANIFOLD AND THREE WAY CATALYST
PFP:14004
Removal and InstallationEBS00KND
REMOVAL
1. Remove heated oxygen sensors.
●Follow below steps to NISSAN X-TRAIL 2001 Service Repair Manual EM-24
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EXHAUST MANIFOLD AND THREE WAY CATALYST
EXHAUST MANIFOLD AND THREE WAY CATALYST
PFP:14004
Removal and InstallationEBS00KND
REMOVAL
1. Remove heated oxygen sensors.
●Follow below steps to](/manual-img/5/57405/w960_57405-73.png)
EM-24
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EXHAUST MANIFOLD AND THREE WAY CATALYST
EXHAUST MANIFOLD AND THREE WAY CATALYST
PFP:14004
Removal and InstallationEBS00KND
REMOVAL
1. Remove heated oxygen sensors.
●Follow below steps to remove each heated oxygen sensor.
a. Remove engine undercover.
b. Disconnect harness connector of each heated oxygen sensor, and harness from bracket and middle
clamp.
c. Using heated oxygen sensor wrench, remove heated oxygen
sensors.
CAUTION:
●Be careful not to damage heated oxygen sensor.
●Discard any heated oxygen sensor which has been
dropped from a height of more than 0.5 m (19.7 in) onto a
hard surface such as a concrete floor; use a new one.
2. Remove exhaust manifold and three way catalyst assembly.
a. Remove exhaust manifold cover lower.
b. Remove exhaust front tube. Refer to EX-2, "
Removal and Instal-
lation" .
PBIC0279E
1.Exhaust manifold and three way cat-
alyst assembly2. Gasket 3. Exhaust manifold cover
4. Heated oxygen sensor 1 5. Heated oxygen sensor 2
KBIA0094E
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EXHAUST MANIFOLD AND THREE WAY CATALYST
EM-25
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c. Remove exhaust manifold cover upper.
d. Loosen nuts in reverse order of illustration to remove exhaust
manifold and catalytic converter.
●Disregard the numerical order No. 6 and 7 when loosening.
3. Remove exhaust manifold and three way catalyst loosening nuts
in reverse order in the figure.
INSPECTION AFTER REMOVAL
Surface Distortion
Use a reliable straightedge and feeler gauge to check the flatness of
exhaust manifold fitting surface.
INSTALLATION
Install in the reverse order of removal paying attention to the following.
Exhaust Manifold Nuts
●Tighten nuts in the numerical order shown in the figure.
●No. 6 and 7 indicate double tightening of bolts No. 1 and 3.
Heated Oxygen Sensor
CAUTION:
Do not over torque the heated oxygen sensor. Doing so may cause damage to the heated oxygen sen-
sor, resulting in the MIL coming on.
KBIA0045E
Standard: 0.3 mm (0.012 in)
KBIA0046E
KBIA0045E
Page 76 of 3833
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
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![NISSAN X-TRAIL 2001 Service Repair Manual 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. Rem NISSAN X-TRAIL 2001 Service Repair Manual 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. Rem](/manual-img/5/57405/w960_57405-76.png)
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
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![NISSAN X-TRAIL 2001 Service Repair Manual 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 NISSAN X-TRAIL 2001 Service Repair Manual 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](/manual-img/5/57405/w960_57405-77.png)
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
Page 79 of 3833
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
Page 80 of 3833
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)