QR20 NISSAN X-TRAIL 2005 Service Repair Manual

GI-44
IDENTIFICATION INFORMATION

IDENTIFICATION INFORMATIONPFP:00010
Model Variation EAS000GE
Prefix and suffix designations:
Body Axle Engine Transaxle GradeDestination
RHDSouthern/Central
EuropeNorthern Europe Russia
MPV4WDQR20DERS5F51A
(5 speed M/T)LE TDANRAF-EEA TDANLAF-EGA TDANLAF-ESA TDANLAF-EQA
GX TDANRFF-EEA TDANLFF-EGA TDANLFF-ESA TDANLFF-EQA
RE4F04B
(4 speed A/T)GX TDANRFA-EEA TDANLFA-EGA TDANLFA-ESA TDANLFA-EQA
SLX TDANRJA-EEA TDANLJA-EGA TDANLJA-ESA TDANLJA-EQA
QR25DERS5F51A
(5 speed M/T)GX TDBNRFF-EEA TDBNLFF-EGA TDBNLFF-ESA TDBNLFF-EQA
SLX TDBNRJF-EEA TDBNLJF-EGA TDBNLJF-ESA TDBNLJF-EQA
RE4F04B
(4 speed A/T)GX TDBNRFA-EEA TDBNLFA-EGA TDBNLFA-ESA TDBNLFA-EQA
SLX TDBNRJA-EEA TDBNLJA-EGA TDBNLJA-ESA TDBNLJA-EQA
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 —
2WDQR20DERS5F51A
(5 speed M/T)LE TDAARAF-EEA TDAALAF-EGA TDAALAF-ESA —
GX TDAARFF-EEA TDAALFF-EGA TDAALFF-ESA —
YD22DDTRS6F51A
(6 speed M/T)LE TVHARAY-UEA TVHALAY-UGA TVHALAY-USA —
GX TVHARFY-UEA TVHALFY-UGA TVHALFY-USA —
SAIA0781E

EM-1
ENGINE MECHANICAL
B ENGINE
CONTENTS
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SECTION EM
A
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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 Angle 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 ........................................ 9
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ...............................................11
NVH Troubleshooting — Engine Noise ................... 11
Use the Chart Below to Help You Find the Cause
of the Symptom. ..................................................... 12
DRIVE BELTS ........................................................... 13
Checking Drive Belts .............................................. 13
Tension Adjustment ................................................ 13
Removal and Installation ........................................ 13
REMOVAL ........................................................... 13
INSTALLATION ................................................... 14
Removal and Installation of Drive Belt Auto-Ten-
sioner ..................................................................... 14
REMOVAL ........................................................... 14
INSTALLATION ................................................... 15
AIR CLEANER AND AIR DUCT ............................... 16
Removal and Installation ........................................ 16
REMOVAL ........................................................... 16
INSTALLATION ................................................... 17
Changing Air Cleaner Filter .................................... 17
REMOVAL ........................................................... 17
INSTALLATION ................................................... 17
INTAKE MANIFOLD ................................................. 18
Removal and Installation (QR20DE) ...................... 18
REMOVAL ........................................................... 18INSTALLATION ................................................... 19
INSPECTION AFTER INSTALLATION ................ 20
Removal and Installation (QR25DE) ...................... 21
REMOVAL ........................................................... 21
INSPECTION AFTER REMOVAL ....................... 23
INSTALLATION ................................................... 23
INSPECTION AFTER INSTALLATION ................ 24
EXHAUST MANIFOLD AND THREE WAY CATA-
LYST .......................................................................... 25
Removal and Installation ........................................ 25
REMOVAL ........................................................... 25
INSPECTION AFTER REMOVAL ....................... 26
INSTALLATION ................................................... 26
OIL PAN AND OIL STRAINER ................................. 27
Removal and Installation ........................................ 27
REMOVAL ........................................................... 27
INSPECTION AFTER REMOVAL ....................... 29
INSTALLATION ................................................... 29
INSPECTION AFTER INSTALLATION ................ 30
IGNITION COIL ......................................................... 31
Removal and Installation ........................................ 31
REMOVAL ........................................................... 31
INSTALLATION ................................................... 31
SPARK PLUG ........................................................... 32
Removal and Installation ........................................ 32
REMOVAL ........................................................... 32
INSPECTION AFTER REMOVAL (EXCEPT
RUSSIA) .............................................................. 32
INSPECTION AFTER REMOVAL (FOR RUS-
SIA) ..................................................................... 33
INSTALLATION ................................................... 33
FUEL INJECTOR AND FUEL TUBE ........................ 34
Removal and Installation (QR20DE) ...................... 34
REMOVAL ........................................................... 34
INSTALLATION ................................................... 36
INSPECTION AFTER INSTALLATION ................ 38
Removal and Installation (QR25DE) ...................... 39
REMOVAL ........................................................... 39
INSTALLATION ................................................... 41
INSPECTION AFTER INSTALLATION ................ 43

EM-18
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INTAKE MANIFOLD

INTAKE MANIFOLDPFP:14003
Removal and Installation (QR20DE)EBS00KNC
REMOVAL
1. Release fuel pressure. Refer to EC-49, "FUEL PRESSURE RELEASE" (WITH EURO-OBD) or EC-562,
"FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).
2. Remove air cleaner case upper, mass air flow sensor and air duct assembly. Refer to EM-16, "
AIR
CLEANER AND AIR DUCT" .
3. Remove quick connector caps, and disconnect quick connectors
at engine side and vehicle side. Refer to EM-34, "
Removal and
Installation (QR20DE)" .
4. Remove electric throttle control actuator with the following procedure:
a. Disconnect harness connector.
1. Vacuum hose 2. Intake manifold 3. PCV hose
4. Bracket 5. Gasket 6. Electric throttle control actuator
7. Gasket 8. Intake manifold support 9. Gasket
10. Vacuum hose 11.EVAP canister purge volume con-
trol solenoid valve12. Vacuum hose
13. Bracket 14. Bracket
PBIC2172E
PBIC2175E

INTAKE MANIFOLD
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b. Loosen mounting bolts in reverse order as shown in the figure,
and remove electric throttle control actuator and gasket.
CAUTION:

Handle carefully to avoid any shock to electric throttle
control actuator.

Do not disassemble.
5. Disconnect harness, power steering piping, vacuum hose and PCV hose from intake manifold, and move
them aside.
6. Remove intake manifold support and gasket.
7. Disconnect sub-harness from fuel injector. Refer to EM-34, "
Removal and Installation (QR20DE)" .
8. Loosen mounting bolts and nuts in reverse order as shown in
the figure, and remove intake manifold (with fuel tube and fuel
injector assembly) and gasket.
CAUTION:

Do not disassemble intake manifold.

Cover engine openings to avoid entry of foreign materi-
als.
NOTE:
Disregard No. 6 when loosening.
9. Remove fuel tube and fuel injector assembly from intake manifold. Refer to EM-34, "
Removal and Installa-
tion (QR20DE)" .
10. Remove EVAP canister purge volume control solenoid valve from intake manifold, if necessary.
INSTALLATION
Note the following, and install in the reverse order of removal.
Intake Manifold

If stud bolts were removed, install them and tighten to the specified torque below.

Check if gasket is not dropped from the installation groove of intake manifold.

Tighten in numerical order as shown in the figure.
NOTE:
No. 6 means double tightening of bolt No. 1.
EMJ1612D
PBIC2173E
: 10.8 N·m (1.1 kg-m, 8 ft-lb)
PBIC2173E

EM-34
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FUEL INJECTOR AND FUEL TUBE

FUEL INJECTOR AND FUEL TUBEPFP:16600
Removal and Installation (QR20DE)EBS00KNH
CAUTION:
Do not remove or disassemble parts unless instructed as shown in the figure.
REMOVAL
1. Release fuel pressure. Refer to EC-49, "FUEL PRESSURE RELEASE" (WITH EURO-OBD) or EC-562,
"FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).
2. Remove air cleaner case upper, mass air flow sensor and air duct assembly. Refer to EM-16, "
AIR
CLEANER AND AIR DUCT" .
3. Disconnect quick connectors at engine side and vehicle side as
follows, and remove fuel feed hose.
CAUTION:
Disconnect quick connector by using quick connector
release (special service tool), not by picking out retainer
tabs.
NOTE:
There is quick connector for the engine side and for the vehicle
side, and they have different shapes. But disconnection is same
procedure. The following procedure shows the engine side.
a. Remove quick connector cap (engine side).
1. Fuel feed hose 2. Quick connector cap (engine side) 3. Quick connector cap (vehicle side)
4. Centralized under-floor piping 5. Sub-harness 6. Fuel tube protector
7. Fuel tube 8. O-ring (black) 9. Clip
10. Fuel injector 11. O-ring (green)
PBIC2178E
PBIC2175E
KBIA0701E

FUEL INJECTOR AND FUEL TUBE
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b. With the sleeve side of quick connector release facing quick connector, install quick connector release
onto fuel tube.
c. Insert quick connector release into quick connector until sleeve
contacts and goes no further. Hold quick connector release on
that position.
CAUTION:
Inserting quick connector release hard will not disconnect
quick connector. Hold quick connector release where it
contacts and goes no further.
d. Draw and pull out quick connector straight from fuel tube.
CAUTION:

Pull quick connector holding “A” position in the figure.

Do not pull with lateral force applied. O-ring inside quick
connector may be damaged.

Prepare container and cloth beforehand as fuel will leak out.

Avoid fire and sparks.

Keep parts away from heat source. Especially, be careful when welding is performed around
them.

Do not expose parts to battery electrolyte or other acids.

Do not bend or twist connection between quick connector and fuel feed hose during installa-
tion/removal.

To keep clean the connecting portion and to avoid dam-
age and foreign materials, cover them completely with
plastic bags or something similar.
4. Remove PCV hose. Refer to EM-18, "
Removal and Installation (QR20DE)" .
5. Disconnect harness connector from ignition coil.
6. Remove sub-harness for fuel injector.
7. Remove electric throttle control actuator and intake manifold support. Refer to EM-18, "
Removal and
Installation (QR20DE)" .
8. Loosen mounting bolts in reverse order as shown in the figure.
9. Remove fuel tube protector.
10. Pull out fuel tube and fuel injector assembly rearward of engine.
CAUTION:

When removing, be careful to avoid any interference with fuel injector.

Use a shop cloth to absorb any fuel leaks from fuel tube.
KBIA0702E
PBIC2205E
PBIC2180E

CAMSHAFT
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4. If out of the standard, replace camshaft.
Camshaft Cam Height
1. Measure the camshaft cam height with a micrometer.
2. If out of the standard, replace camshaft.
Camshaft Journal Oil Clearance
CAMSHAFT JOURNAL DIAMETER
Measure the outer diameter of camshaft journal with a micrometer.
CAMSHAFT BRACKET INNER DIAMETER

Tighten camshaft bracket bolts with specified torque. Refer to EM-61, "INSTALLATION" for the tightening
procedure.

Measure the inner diameter of camshaft bracket with an inside
micrometer.
CAMSHAFT JOURNAL OIL CLEARANCE

(Oil clearance) = (Camshaft bracket inner diameter) – (Camshaft journal diameter)

If out of the standard, replace either or both camshaft and cylinder head.
NOTE:
Camshaft bracket cannot be replaced as a single part, because it is machined together with cylinder head.
Replace whole cylinder head assembly.
Camshaft End Play
1. Install camshaft in cylinder head. Refer to EM-61, "INSTALLATION" for tightening procedure. Standard:
Intake
QR20DE : 45.015 - 45.205 mm (1.7722 - 1.7797 in)
QR25DE : 45.665 - 45.855 mm (1.7978 - 1.8053 in)
Exhaust
QR20DE : 42.825 - 43.015 mm (1.6860 - 1.6935 in)
QR25DE : 43.975 - 44.165 mm (1.7313 - 1.7388 in)
PBIC0039E
Standard:
No. 1 : 27.935 - 27.955 mm (1.0998 - 1.1006 in)
No. 2, 3, 4, 5 : 23.435 - 23.455 mm (0.9226 - 0.9234 in)
PBIC0040E
Standard:
No. 1 : 28.000 - 28.021 mm (1.1024 - 1.1032 in)
No. 2, 3, 4, 5 : 23.500 - 23.521 mm (0.9252 - 0.9260 in)
PBIC0041E
Standard: 0.045 - 0.086 mm (0.0018 - 0.0034 in)

EM-70
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CYLINDER HEAD

CYLINDER HEADPFP:11041
On-Vehicle ServiceEBS00KNP
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-49, "
FUEL PRESSURE RELEASE" (WITH EURO-OBD) or EC-562,
"FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).
3. Disconnect fuel pump fuse to avoid fuel injection during mea-
surement.
4. Remove ignition coil and spark plug from each cylinder. Refer to EM-31, "
IGNITION COIL" and EM-32,
"SPARK PLUG" .
5. Connect engine tachometer (not required in use of CONSULT-II).
6. Install compression tester with adapter onto spark plug hole.

Use the adapter 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 cyl-
inder.
Compression pressure:
Unit: kPa (bar, kg/cm2 , psi) /rpm
CAUTION:
Always use a fully changed battery to obtain specified engine speed.
PBIB0508E
KBIA0130E
SBIA0533E
Engine type Standard Minimum Differential 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) / 250 1,060 (10.6, 10.8, 154) / 250

CYLINDER HEAD
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If the engine speed is out of specified range, check battery liquid for proper gravity. Check engine
speed again with normal battery gravity.

If compression pressure is below minimum value, check valve clearances and parts associated with
combustion chamber (Valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure the compression pressure again.

If some cylinder has low compression pressure, pour small amount of engine oil into the spark plug hole
of the cylinder to re-check it for compression.
–If the added engine oil improves the compression, piston rings may be worn out or damaged. Check
piston rings and replace if necessary.
–If the compression pressure remains at low level despite the addition of engine oil, valves may be mal-
functioning. Check valves for damage. Replace valve or valve seat accordingly.

If two adjacent cylinders have respectively low compression pressure and their compression remains
low even after the addition of engine oil, gaskets are leaking. In such a case, replace cylinder head gas-
kets.
8. After inspection is completed, install removed parts.
9. Start engine, and confirm that engine runs smoothly.
10. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-73, "
TROUBLE DIAGNOSIS" (WITH
EURO-OBD) or EC-572, "
TROUBLE DIAGNOSIS" (WITHOUT EURO-OBD).
Removal and InstallationEBS00KNQ
REMOVAL
1. Release fuel pressure. Refer to EC-49, "FUEL PRESSURE RELEASE" (WITH EURO-OBD) or EC-562,
"FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).
2. Drain engine coolant and engine oil. Refer to CO-9, "
Changing Engine Coolant" and LU-8, "Changing
Engine Oil" .
3. Remove the following components and related parts.

Exhaust manifold and three way catalyst assembly; Refer to EM-25, "EXHAUST MANIFOLD AND
THREE WAY CATALYST" .

Intake manifold and fuel tube assembly (QR20DE); Refer to EM-18, "Removal and Installation
(QR20DE)" .

Intake manifold collector, intake manifold and fuel tube assembly (QR25DE); Refer to EM-21, "Removal
and Installation (QR25DE)" .

Water control valve and water control valve housing (water outlet); Refer to CO-23, "THERMOSTAT
AND WATER CONTROL VALVE" .
1. Cylinder head assembly 2. Cylinder head gasket 3. Cylinder head bolt
PBIC2185E

CYLINDER BLOCK
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CRANKSHAFT PIN JOURNAL DIAMETER

Measure the outer diameter of crankshaft pin journal with a micrometer.

If out of the standard, measure the connecting rod bearing oil clearance. Then use undersize bearing.
Refer to EM-113, "
CONNECTING ROD BEARING OIL CLEARANCE" .
OUT-OF-ROUND AND TAPER OF CRANKSHAFT

Measure the dimensions at four different points as shown in the
figure on each main journal and pin journal with a micrometer.

Out-of-round is indicated by the difference in dimensions
between “X” and “Y” at “A” and “B”.

Taper is indicated by the difference in dimension between “A”
and “B” at “X” and “Y”.

If the measured value exceeds the limit, correct or replace crankshaft.

If corrected, measure the bearing oil clearance of the corrected main journal and/or pin journal. Then
select main bearing and/or connecting rod bearing. Refer to EM-114, "
MAIN BEARING OIL CLEAR-
ANCE" and/or EM-113, "CONNECTING ROD BEARING OIL CLEARANCE" .
CRANKSHAFT RUNOUT

Place a V-block on a precise flat table to support the journals on
the both end of the crankshaft.

Place a dial indicator straight up on the No. 3 journal.

While rotating crankshaft, read the movement of the pointer on
the dial indicator. (Total indicator reading)

If it exceeds the limit, replace crankshaft.
CONNECTING ROD BEARING OIL CLEARANCE
Method by Calculation

Install connecting rod bearings to connecting rod and cap, and tighten connecting rod bolts to the speci-
fied torque. Refer to EM-94, "
ASSEMBLY" for tightening procedure.

Measure the inner diameter of connecting rod bearing with an
inside micrometer.
(Bearing oil clearance) = (Connecting rod bearing inner diame-
ter) – (Crankshaft pin journal diameter)

If clearance exceeds the limit, select proper connecting rod
bearing according to connecting rod big end diameter and
crankshaft pin journal diameter to obtain specified bearing oil
clearance. Refer to EM-100, "
HOW TO SELECT CONNECTING
ROD BEARING" .
Method of Using Plastigage

Remove engine oil and dust on crankshaft pin and the surfaces of each bearing completely. Standard: 44.956 - 44.974 mm (1.7699-1.7706 in) dia.
Limit:
Out-of-round (Difference between “X” and “Y”)
: 0.005 mm (0.0002 in)
Taper (Difference between “A” and “B”)
: 0.005 mm (0.0002 in)
PBIC2203E
Limit:
QR20DE: 0.03 mm (0.0012 in)
QR25DE: 0.05 mm (0.0020 in)
PBIC2541E
Standard : 0.028 - 0.045 mm (0.0011 - 0.0018 in)
Limit : 0.10 mm (0.0039 in)
PBIC1642E