Qr20 NISSAN X-TRAIL 2001 Service Repair Manual

IDENTIFICATION INFORMATION
GI-41
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IDENTIFICATION INFORMATIONPFP:00010
Model Variation EAS000GE
Prefix and suffix designations:
Body Engine Transaxle GradeDestination
RHDSouthern/Central
EuropeNorthern Europe
MPVQR20DERS5F51A
(5 speed M/T)LE TDANRAF-EEA TDANLAF-EGA TDANLAF-ESA
GX TDANRFF-EEA TDANLFF-EGA TDANLFF-ESA
SLX TDANRJF-EEA TDANLJF-EGA TDANLJF-ESA
RE4F04B
(4 speed A/T)LE TDANRAA-EEA TDANLAA-EGA TDANLAA-ESA
GX TDANEFA-EEA TDANLFA-EGA TDANLFA-ESA
SLX TDANRJA-EEA TDANLJA-EGA TDANLJA-ESA
QR25DERS5F51A
(5 speed M/T)GX TDBNRFF-EEA TDBNLFF-EGA TDBNLFF-ESA
SLX TDBNRJF-EEA TDBNLJF-EGA TDBNLJE-ESA
RE4F04B
(4 speed A/T)GX TDBNRFA-EEA TDBNLFA-EGA TDBNLFA-ESA
SLX TDBNRJA-EEA TDBNLJA-EGA TDBNLJA-ESA
YD22DDTRS6F51A
(6 speed M/T)LE TVHNRAY-UEA TVHNLAY-UGA TVHNLAY-USA
GX TVHNRFY-UEA TVHNLFY-UGA TVHNLFY-USA
SLX TVHNRJY-UEA TVHNLJY-UGA TVHNLJY-USA
PAIA0082E

EM-1
ENGINE MECHANICAL
B ENGINE
CONTENTS
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SECTION
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ENGINE MECHANICAL
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PRECAUTIONS .......................................................... 5
Precautions for Drain Engine Coolant ...................... 5
Precautions for Disconnecting Fuel Piping .............. 5
Precautions for Removal and Disassembly ............. 5
Precautions for Inspection, Repair and Replace-
ment ......................................................................... 5
Precautions for Assembly and Installation ............... 5
Parts Requiring Angular Tightening ......................... 5
Precautions For Liquid Gasket ................................. 6
REMOVAL OF LIQUID GASKET .......................... 6
LIQUID GASKET APPLICATION PROCEDURE ..... 6
PREPARATION ........................................................... 7
Special Service Tools ............................................... 7
Commercial Service Tools ........................................ 8
NOISE, VIBRATION, AND HARSHNESS (NVH)
TROUBLESHOOTING .............................................. 10
NVH Troubleshooting —Engine Noise ................... 10
Use the Chart Below to Help You Find the Cause
of the Symptom. ...................................................... 11
DRIVE BELTS ........................................................... 12
Checking Drive Belts .............................................. 12
Tension Adjustment ................................................ 12
Removal and Installation ........................................ 12
REMOVAL ........................................................... 12
INSTALLATION ................................................... 13
Removal and Installation of Drive Belt Auto-Ten-
sioner ..................................................................... 13
REMOVAL ........................................................... 13
INSTALLATION ................................................... 13
AIR CLEANER AND AIR DUCT ............................... 14
Removal and Installation ........................................ 14
REMOVAL ........................................................... 14
INSTALLATION ................................................... 14
CHANGING AIR CLEANER FILTER ................... 15INTAKE MANIFOLD ................................................. 16
Removal and Installation ........................................ 16
QR20DE .............................................................. 16
QR25DE .............................................................. 17
REMOVAL ........................................................... 17
INSPECTION AFTER REMOVAL ....................... 20
INSTALLATION ................................................... 20
INSPECTION AFTER INSTALLATION ................ 22
EXHAUST MANIFOLD AND THREE WAY CATA-
LYST .......................................................................... 24
Removal and Installation ........................................ 24
REMOVAL ........................................................... 24
INSPECTION AFTER REMOVAL ....................
... 25
INSTALLATION ................................................... 25
OIL PAN AND OIL STRAINER ................................. 26
Removal and Installation ........................................ 26
REMOVAL ........................................................... 26
INSPECTION AFTER REMOVAL ....................... 27
INSTALLATION ................................................... 27
INSPECTION AFTER INSTALLATION ................ 28
IGNITION COIL ......................................................... 29
Removal and Installation ........................................ 29
REMOVAL ........................................................... 29
INSTALLATION ................................................... 29
SPARK PLUG ........................................................... 30
Removal and Installation ........................................ 30
REMOVAL ........................................................... 30
INSPECTION AFTER REMOVAL ....................... 30
INSTALLATION ................................................... 31
FUEL INJECTOR AND FUEL TUBE ........................ 32
Removal and Installation ........................................ 32
QR20DE .............................................................. 32
QR25DE .............................................................. 32
REMOVAL ........................................................... 33
INSTALLATION ................................................... 33
INSPECTION AFTER INSTALLATION ................ 34
ROCKER COVER ..................................................... 35
Removal and Installation ........................................ 35
REMOVAL ........................................................... 35
INSTALLATION ................................................... 36

EM-16
[QR]
INTAKE MANIFOLD
INTAKE MANIFOLD
PFP:14003
Removal and InstallationEBS00KNC
QR20DE
PBIC1260E
1. Bracket 2. PCV hose 3. Intake manifold collector
4. Gasket 5. Electric throttle control actuator 6. Intake manifold support
7.EVAP canister purge volume control
solenoid valve8. Vacuum hose 9. Intake manifold
10. Ground cable

INTAKE MANIFOLD
EM-17
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QR25DE
REMOVAL
WARNING:
To avoid the danger of being scalded, never drain the coolant when the engine is hot.
1. Disconnect mass air flow sensor harness connector from mass air flow sensor and clamp.
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 air cleaner case and air duct assembly. Refer to EM-14, "
AIR CLEANER AND AIR DUCT" .
4. Drain coolant when engine is cooled. Refer to CO-9, "
DRAINING ENGINE COOLANT" .
SBIA0229E
1. Bracket 2. PCV hose 3. Intake manifold collector
4. Gasket 5. Electric throttle control actuator 6. Intake manifold support
7.EVAP canister purge volume control
solenoid valve8. Vacuum hose 9. Intake manifold
10. Vacuum reservoir tank 11. VIAS control solenoid valve

INTAKE MANIFOLD
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●Do not bend or twist the tube during installation and removal.
●Do not remove the remaining retainer on tube.
●When the tube is replaced, also replace the retainer with a new one.
●To keep clean the connecting portion and to avoid
damage and foreign materials, cover them completely
with plastic bags or something similar.
7. Loosen mounting bolts diagonally in reverse order shown, and
remove electric throttle control actuator.
CAUTION:
●Handle carefully to avoid any shock.
●Do not disassemble.
8. Disconnect intake manifold collector harness, vacuum hose, and PCV hose.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
9. Remove intake manifold collector mounting bolts on the support.
For QR20DE
Loosen mounting bolts and nuts in order from No. 5 to 1, and
remove intake manifold collector.
●Disregard No. 6 when loosening.
For QR25DE
Loosen mounting bolts and nuts in order from No. 7 to 1, and
remove intake manifold collector.
●Disregard No. 8 when loosening.
10. Disconnect harness and power steering piping from intake man-
ifold and fuel tube assembly, and move them a side.
11. Remove intake manifold mounting bolts on the support.
PBIC0163E
EMJ1612D
KBIA0234E
SBIA0230E

EM-20
[QR]
INTAKE MANIFOLD
For QR20DE
Loosen mounting bolts and nuts in order from No. 5 to 1, and
remove intake manifold assembly.
●Disregard No. 6 when loosening.
For QR25DE
Loosen mounting bolts and nuts in order from No. 5 to 1, and
remove intake manifold assembly.
●Disregard No. 6 when loosening.
INSPECTION AFTER REMOVAL
Surface Distortion
Using straightedge and feeler gauge, inspect surface distortion of
intake manifold collector and intake manifold surface.
INSTALLATION
Install in the reverse order of removal paying attention to the following.
Intake Manifold Bolts and Nuts
For QR20DE
Tighten in numerical order as shown in the figure.
NOTE:
No. 6 means double tightening of bolt No. 1.
KBIA0233E
SBIA0231E
Standard: 0.1 mm (0.004 in)
KBIA0235E
KBIA0233E

INTAKE MANIFOLD
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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

INTAKE MANIFOLD
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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)].

EM-32
[QR]
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

FUEL INJECTOR AND FUEL TUBE
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●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