2003 NISSAN X-TRAIL fuel pump

GI-4
PRECAUTIONS

General PrecautionsEAS000FQ

Do not operate the engine for an extended period of time without
proper exhaust ventilation.
Keep the work area well ventilated and free of any inflammable
materials. Special care should be taken when handling any
inflammable or poisonous materials, such as gasoline, refriger-
ant gas, etc. When working in a pit or other enclosed area, be
sure to properly ventilate the area before working with hazard-
ous materials.
Do not smoke while working on the vehicle.

Before jacking up the vehicle, apply wheel chocks or other tire
blocks to the wheels to prevent the vehicle from moving. After
jacking up the vehicle, support the vehicle weight with safety
stands at the points designated for proper lifting before working
on the vehicle.
These operations should be done on a level surface.

When removing a heavy component such as the engine or tran-
saxle/transmission, be careful not to lose your balance and drop
them. Also, do not allow them to strike adjacent parts, especially
the brake tubes and master cylinder.

Before starting repairs which do not require battery power:
Turn off ignition switch.
Disconnect the negative battery terminal.

If the battery terminals are disconnected, recorded memory of
radio and each control unit is erased.

To prevent serious burns:
Avoid contact with hot metal parts.
Do not remove the radiator cap when the engine is hot.

Dispose of drained oil or the solvent used for cleaning parts in
an appropriate manner.

Do not attempt to top off the fuel tank after the fuel pump nozzle
shuts off automatically.
Continued refueling may cause fuel overflow, resulting in fuel
spray and possibly a fire.

Clean all disassembled parts in the designated liquid or solvent
prior to inspection or assembly.

Replace oil seals, gaskets, packings, O-rings, locking washers, cotter pins, self-locking nuts, etc. with new
ones.

Replace inner and outer races of tapered roller bearings and needle bearings as a set.

Arrange the disassembled parts in accordance with their assembled locations and sequence.

Do not touch the terminals of electrical components which use microcomputers (such as ECM).
Static electricity may damage internal electronic components.

After disconnecting vacuum or air hoses, attach a tag to indicate the proper connection.

Use only the fluids and lubricants specified in this manual.
SGI285
SGI231
SEF289H
SGI233

GI-6
PRECAUTIONS

CAUTION:

Do not use home heating oil, gasoline or other alternate fuels in your diesel engine. The use of
those can cause engine damage.

Do not use summer fuel at temperatures below –7°C (20°F). The cold temperatures will cause wax
to form in the fuel. As a result, it may prevent the engine from running smoothly.

Do not add gasoline or other alternate fuels to diesel fuel.
Precautions for Multiport Fuel Injection System or Engine Control SystemEAS000FT

Before connecting or disconnecting any harness connector for
the multiport fuel injection system or ECM:
Turn ignition switch to “OFF” position.
Disconnect negative battery terminal.
Otherwise, there may be damage to ECM.

Before disconnecting pressurized fuel line from fuel pump to
injectors, be sure to release fuel pressure.

Be careful not to jar components such as ECM and mass air
flow sensor.
Precautions for Turbocharger (If Equipped)EAS000FU
The turbocharger turbine revolves at extremely high speeds and
becomes very hot. Therefore, it is essential to maintain a clean sup-
ply of oil flowing through the turbocharger and to follow all required
maintenance instructions and operating procedures.

Always use the recommended oil. Follow the instructions for
proper time to change the oil and proper oil level.

Avoid accelerating engine to a high rpm immediately after start-
ing.

If engine had been operating at high rpm for an extended period
of time, let it idle for a few minutes prior to shutting if off.
Precautions for HosesEAS000FV
HOSE REMOVAL AND INSTALLATION

To prevent damage to rubber hose, do not pry off rubber hose
with tapered tool or screwdriver.

To reinstall the rubber hose securely, make sure that hose inser-
tion length and orientation is correct. (If tube is equipped with
hose stopper, insert rubber hose into tube until it butts up
against hose stopper.)
SGI787
SGI292
SMA019D
SMA020D

GI-48
TERMINOLOGY

Nonvolatile random access memory NVRAM ***
On board diagnostic system OBD system Self-diagnosis
Open loop OL Open loop
Oxidation catalyst OC Catalyst
Oxidation catalytic converter system OC system ***
Oxygen sensor O2S Exhaust gas sensor
Park position switch *** Park switch
Park/neutral position switch PNP switchPark/neutral switch
Inhibitor switch
Neutral position switch
Periodic trap oxidizer system PTOX system ***
Positive crankcase ventilation PCV Positive crankcase ventilation
Positive crankcase ventilation valve PCV valve PCV valve
Powertrain control module PCM ***
Programmable read only memory PROM ***
Pulsed secondary air injection control sole-
noid valvePAIRC solenoid valve AIV control solenoid valve
Pulsed secondary air injection system PAIR system Air induction valve (AIV) control
Pulsed secondary air injection valve PAIR valve Air induction valve
Random access memory RAM ***
Read only memory ROM ***
Scan tool ST ***
Secondary air injection pump AIR pump ***
Secondary air injection system AIR system ***
Sequential multiport fuel injection system SFI system Sequential fuel injection
Service reminder indicator SRI ***
Simultaneous multiport fuel injection sys-
tem*** Simultaneous fuel injection
Smoke puff limiter system SPL system ***
Supercharger SC ***
Supercharger bypass SCB ***
System readiness test SRT ***
Thermal vacuum valve TVV Thermal vacuum valve
Three way catalyst TWC Catalyst
Three way catalytic converter system TWC system ***
Three way + oxidation catalyst TWC + OC Catalyst
Three way + oxidation catalytic converter
systemTWC + OC system ***
Throttle body TBThrottle chamber
SPI body
Throttle body fuel injection system TBI system Fuel injection control
Throttle position TP Throttle position
Throttle position sensor TPS Throttle sensor
Throttle position switch TP switch Throttle switch
Torque converter clutch solenoid valve TCC solenoid valveLock-up cancel solenoid
Lock-up solenoid NEW TERMNEW ACRONYM /
ABBREVIATIONOLD TERM

EM-3
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Parts Requiring Angle Tightening ......................... 122
Precautions For Liquid Gasket ............................. 123
REMOVAL OF LIQUID GASKET ...................... 123
LIQUID GASKET APPLICATION PROCEDURE . 123
PREPARATION ....................................................... 124
Special Service Tools ........................................... 124
Commercial Service Tools .................................... 127
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ............................................ 129
NVH Troubleshooting — Engine Noise ................ 129
Use the Chart Below to Help You Find the Cause
of the Symptom. ................................................... 130
DRIVE BELTS ......................................................... 131
Checking Drive Belts ............................................ 131
Tension Adjustment .............................................. 131
A/C COMPRESSOR BELT ............................... 132
ALTERNATOR AND WATER PUMP BELT ....... 132
Removal and Installation ...................................... 132
REMOVAL ......................................................... 132
INSTALLATION ................................................. 132
AIR CLEANER AND AIR DUCT ............................. 133
Removal and Installation ...................................... 133
REMOVAL ......................................................... 133
INSTALLATION ................................................. 133
CHANGING AIR CLEANER FILTER ................. 134
CHARGE AIR COOLER ......................................... 135
Removal and Installation ...................................... 135
REMOVAL ......................................................... 135
INSPECTION AFTER REMOVAL ..................... 135
INSTALLATION ................................................. 135
INTAKE MANIFOLD ............................................... 136
Removal and Installation ...................................... 136
REMOVAL ......................................................... 136
INSPECTION AFTER REMOVAL ..................... 137
INSTALLATION ................................................. 137
INSPECTION AFTER INSTALLATION ............. 138
CATALYST .............................................................. 139
Removal and Installation ...................................... 139
REMOVAL ......................................................... 139
INSTALLATION ................................................. 140
EXHAUST MANIFOLD AND TURBOCHARGER .. 141
Removal and Installation ...................................... 141
REMOVAL ......................................................... 141
INSTALLATION ................................................. 142
INSPECTION AFTER INSTALLATION ............. 142
Disassembly and Assembly ................................. 143
DISASSEMBLY ................................................. 143
ASSEMBLY ....................................................... 143
INSPECTION AFTER DISASSEMBLY ............. 143
Turbocharger ........................................................ 144
ROTOR SHAFT CLEARANCE ......................... 144
ROTOR SHAFT END PLAY .............................. 144
TURBINE WHEEL ............................................. 145
COMPRESSOR WHEEL .................................. 145
TURBOCHARGER BOOST CONTROL ACTU-
ATOR ................................................................ 145
TROUBLE DIAGNOSIS OF TURBOCHARGER . 146OIL PAN AND OIL STRAINER ...............................147
Removal and Installation ......................................147
REMOVAL .........................................................147
INSPECTION AFTER REMOVAL .....................149
INSTALLATION .................................................149
INSPECTION AFTER INSTALLATION ..............151
GLOW PLUG ..........................................................152
Removal and Installation ......................................152
REMOVAL .........................................................152
INSTALLATION .................................................152
VACUUM PUMP ......................................................153
Removal and Installation ......................................153
INSPECTION BEFORE REMOVAL ..................153
REMOVAL .........................................................153
INSTALLATION .................................................154
INSPECTION AFTER INSTALLATION ..............155
Disassembly and Assembly ..................................155
DISASSEMBLY .................................................155
ASSEMBLY .......................................................156
INJECTION TUBE AND FUEL INJECTOR ............157
Removal and Installation ......................................157
REMOVAL .........................................................157
INSTALLATION .................................................159
INSPECTION AFTER INSTALLATION ..............160
FUEL PUMP ............................................................161
Removal and Installation ......................................161
REMOVAL .........................................................161
INSPECTION AFTER REMOVAL .....................165
INSTALLATION .................................................165
ROCKER COVER ...................................................168
Removal and Installation ......................................168
REMOVAL .........................................................168
INSTALLATION .................................................169
INSPECTION AFTER INSTALLATION ..............169
CAMSHAFT ............................................................170
Removal and Installation ......................................170
REMOVAL .........................................................170
INSPECTION AFTER REMOVAL .....................171
INSTALLATION .................................................174
Valve Clearance ...................................................175
INSPECTION ....................................................175
ADJUSTMENTS ................................................177
SECONDARY TIMING CHAIN ................................180
Removal and Installation ......................................180
REMOVAL .........................................................180
INSPECTION AFTER REMOVAL .....................182
INSTALLATION .................................................182
PRIMARY TIMING CHAIN ......................................185
Removal and Installation ......................................185
REMOVAL .........................................................187
INSPECTION AFTER REMOVAL .....................190
INSTALLATION .................................................190
CYLINDER HEAD ...................................................196
On-Vehicle Service ...............................................196
CHECKING COMPRESSION PRESSURE .......196
Removal and Installation ......................................197
REMOVAL .........................................................197
INSPECTION AFTER REMOVAL .....................198

CYLINDER HEAD
EM-67
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CYLINDER HEADPFP:11041
On-Vehicle ServiceEBS00KNP
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure by “Without CONSULT-II”. Refer to EC-48, "
FUEL PRESSURE RELEASE" (WITH
EURO-OBD) or EC-510, "
FUEL PRESSURE RELEASE" (WITHOUT EURO-OBD).

Leave fuel pump fuse disconnecting to avoid fuel injection during measurement.
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. 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.
6. 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.

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 cylinders have 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.
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

ENGINE ASSEMBLY
EM-81
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9. Remove power steering oil pump with piping connected from engine. Move it aside on front suspension
member. Refer to PS-34, "
HYDRAULIC LINE" .
10. Remove front engine mounting and rear engine mounting through-bolts to remove front suspension mem-
ber and center member.
11. Remove starter motor. Refer to SC-21, "
STARTING SYSTEM" .
12. Separate engine and transaxle. Refer to MT-17, "
TRANSAXLE ASSEMBLY" (M/T models) or AT- 4 1 3 ,
"REMOVAL AND INSTALLATION" (A/T models).
INSTALLATION
Note the following, and install in the reverse order of removal.

Do not allow engine oil to get on mounting insulator. Be careful not to damage mounting insulator.

When installation directions are specified, install parts according to the direction marks on them referring
to figure of components. Refer to EM-78, "
Removal and Installation" .

Make sure that each mounting insulator is seated properly, and tighten mounting bolts and nuts.
INSPECTION AFTER INSTALLATION

Before starting engine, check the levels of engine coolant, engine oil and working fluid. If less than
required quantity, fill to the specified level.

Use procedure below to make sure there is no fuel leakage.
–Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, make sure there
are no fuel leaks at connection points.
–Start engine. With engine speed increased, check again if there are no fuel leaks at connection points.

Run engine to check for unusual noise and vibration.

Warm up engine thoroughly to make sure there is no leakage of engine coolant, engine oil, working fluid,
fuel and exhaust gas.

Bleed air from passages in pipes and tubes of applicable lines, such as in cooling system.

After cooling down engine, again check amounts of engine coolant, engine oil and working fluid. Refill to
specified level, if necessary.
Summary of the inspection items:
Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Working fluid Level Leakage Level
Fuel — Leakage —
Exhaust gas — Leakage —

EM-126
[YD22DDTi]
PREPARATION

EM03470000
Piston ring compressorInstalling piston assembly into cylinder bore
KV10109300
Pulley holderFixing crankshaft pulley
a: 68 mm (2.68 in)
b: 8 mm (0.31 in) dia.
KV11106010
Hexagon wrenchRemoving and installing chain tensioner
a: 5 mm (0.20 in) (Face to face)
b: 20 mm (0.79 in)
KV11106020
Hexagon wrenchRemoving and installing slack guide
a: 6 mm (0.24 in) (Face to face)
b: 20 mm (0.79 in)
KV11106030
Positioning stopper pinFixing fuel pump sprocket
a: 6 mm (0.24 in) dia.
b: 80 mm (3.15 in)
KV11106040
TORX wrenchRemoving and installing fuel pump sprocket
nut
a: T70
b: 26 mm (1.02 in) Tool number
Tool nameDescription
NT044
NT628
NT801
NT803
NT804
NT805

PREPARATION
EM-127
[YD22DDTi]
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Commercial Service ToolsEBS00LR7
KV11106050
Hexagonal wrenchRemoving and installing fuel pump sprocket
a: 6 mm (0.24 in) (Face to face)
b: 42 mm (1.65 in)
KV11106060
Sprocket holderHolding fuel pump sprocket Tool number
Tool nameDescription
SBIA0224E
SBIA0225E
Tool nameDescription
Valve seat cutter set Finishing valve seat dimensions
Piston ring expander Removing and installing piston ring
Manual lift table caddy Removing and installing engine
Valve guide reamer Reaming valve guide with (1) or hole for
oversize valve guide with (2)
Intake and Exhaust:
d
1 = 6.0 mm (0.236 in) dia.
d
2 = 10.2 mm (0.402 in) dia.
Valve guide drift Removing and installing valve guide
Intake and Exhaust:
a = 9.5 mm (0.374 in) dia.
b = 5.5 mm (0.217 in) dia.
NT048
NT030
ZZA1210D
NT016
NT015