2006 SUZUKI SX4 Fuel

Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-17
Engine Assembly Removal and InstallationS6RW0D1406013
Removal
1) Relieve fuel pressure according to “Fuel Pressure
Relief Procedure in Section 1G”.
2) Disconnect negative and positive cable at battery.
3) Disconnect ECM connectors.
4) Remove battery and battery tray with ECM.
5) Remove right and left side engine under covers.
6) Remove A/C compressor belt by referring to
“Compressor Drive Belt Removal and Installation in
Section 7B” or “Compressor Drive Belt Removal and
Installation in Section 7B”.
7) Drain engine oil referring to “Engine Oil and Filter
Change in Section 0B”.
8) Drain transaxle oil referring to “Manual Transaxle Oil
Change in Section 5B” or “A/T Fluid Change in
Section 5A”.
9) Drain transfer oil referring to “Transfer Oil Change in
Section 3C”.
10) Drain coolant referring to “Cooling System Draining
in Section 1F”
11) Remove air cleaner assembly referring to “Air
Cleaner Assembly Removal and Installation”.
12) With hose connected, detach A/C compressor from
its bracket referring to “Compressor Assembly
Removal and Installation in Section 7B” or
“Compressor Assembly Removal and Installation in
Section 7B”.
CAUTION!
Suspend removed A/C compressor at a place
where no damage will be caused during
removal and installation of engine assembly.

13) Remove cylinder upper cover (1).14) Disconnect the following electric wires/connectors
and each clamps.
• TP sensor (1)
• MAP sensor (2)
• ECT sensor (3)
•EGR valve (4)
• CMP sensor (5)
• Ignition coil assembly (6)
• Injector (7)
•HO2S (8)
• Oil control valve (9) (for engine with VVT system)
• Engine oil pressure switch (10)
• CKP sensor (12)
• Knock sensor (13)
• Generator (14)
• Starting motor (15)
• Ground terminal (16) from cylinder block
• Battery ground cable (17) from transaxle
• Back-up light switch (18) (for M/T model)
• Torque sensor (19)
• P/S motor (20)
• Output shaft speed sensor (VSS) (29) (for A/T
model)
• Solenoid valve (30) (for A/T model)
• Transmission range sensor (31) (for A/T model)
• Input shaft speed sensor (32) (for A/T model)
15) Disconnect the following cables, and remove control
cable bracket (23)
• Gear select control cable (21) (for M/T model)
• Gear shift control cable (22) (for M/T model)
• A/T select cable (33) (for A/T model)
16) Disconnect the following hoses.
• Brake booster hose (24) from intake manifold
• Radiator inlet and outlet hoses (25) from radiator
• Heater inlet and outlet hoses (26) from heater
core
• Fuel feed hose (27) from fuel feed pipe
• Fuel vapor hose (11) from fuel vapor pipe
• Clutch hose (28) from transaxle (for M/T model)
• A/T fluid cooler hoses (for A/T model)
F: Vehicle forward 8. Engine front mounting bracket : 55 N⋅m (5.5 kgf-m, 40.0 lb-ft)
1. Engine right mounting bracket 9. Engine front mounting
: Be sure to direct yellow mark to forward.: 95 N⋅m (9.5 kgf-m, 69.0 lb-ft)
2. Engine right mounting 10. Transfer : 65 N⋅m (6.5 kgf-m, 47.0 lb-ft)
3. Engine left mounting bracket 11. Suspension frame : 25 N⋅m (2.5 kgf-m, 18.0 lb-ft)
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Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-21
12) Install oil pressure switch bracket (1).
13) Connect right and left drive shaft joints to differential
gear referring to “Front Drive Shaft Assembly
Removal and Installation in Section 3A”.
14) Install suspension control arm referring to
“Suspension Control Arm / Bushing Removal and
Installation in Section 2B”.
15) Install cylinder upper cover (1).16) Install A/C compressor to its bracket (if equipped)
referring to “Compressor Assembly Removal and
Installation in Section 7B” or “Compressor Assembly
Removal and Installation in Section 7B”.
17) Adjust A/C compressor drive belt referring to
“Compressor Drive Belt Removal and Installation in
Section 7B” or “Compressor Drive Belt Removal and
Installation in Section 7B”.
18) Install air cleaner assembly referring to “Air Cleaner
Assembly Removal and Installation”.
19) Check to ensure that all removed parts are back in
place. Reinstall any necessary parts which have not
been reinstalled.
20) Refill cooling system with coolant referring to
“Cooling System Flush and Refill in Section 1F”.
21) Refill engine with engine oil referring to “Engine Oil
and Filter Change in Section 0B”.
22) Refill transaxle oil referring to “Manual Transaxle Oil
Change in Section 5B” or “A/T Fluid Change in
Section 5A”.
23) Refill transfer oil referring to “Transfer Oil Change in
Section 3C”.
24) Install battery and battery tray with ECM.
25) Connect ECM wire harness.
26) Connect positive and negative cable at battery.
27) Install right and left side engine under covers.
28) Verify that there is no fuel leakage, coolant leakage,
oil leakage and exhaust gas leakage at each
connection.
2. Exhaust manifold
1
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Downloaded from www.Manualslib.com manuals search engine 1D-44 Engine Mechanical:
6) Install valve to valve guide.
Before installing valve to valve guide, apply engine
oil to stem seal, valve guide bore and valve stem.
7) Install valve spring and spring retainer.
Each valve spring has top end (large-pitch end (1))
and bottom end (small-pitch end (2)). Be sure to
position spring in place with its bottom end (small-
pitch end) facing the bottom (valve spring seat side).8) Using special tools (Valve lifter), compress valve
spring and fit two valve cotters (1) into groove in
valve stem.
NOTE
When compressing the valve spring, be
carefully to free from damage in inside face
of tappet installing hole.

Special tool
(A): 09916–14510
(B): 09916–14521
(C): 09916–84511
9) Install intake manifold referring to “Intake Manifold
Removal and Installation”.
10) Install fuel injectors referring to “Fuel Injector
Removal and Installation in Section 1G”.
11) Install exhaust manifold referring to “Exhaust
Manifold Removal and Installation in Section 1K”.
A: Valve spring retainer side B: Valve spring seat side
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Downloaded from www.Manualslib.com manuals search engine 1G-1 Fuel System:
Engine
Fuel System
Precautions
Precautions on Fuel System ServiceS6RW0D1700001
WARNING!
Before attempting service of any type on fuel system, the following should be always observed in
order to reduce the risk of fire and personal injury.
• Disconnect negative cable at battery.
• Do not smoke, and place no smoking signs near work area.
• Be sure to have CO
2 fire extinguisher handy.
• Be sure to perform work in a well-ventilated area and away from any open flames (such as gas hot
heater).
• Wear safety glasses.
• To relieve fuel vapor pressure in fuel tank, remove fuel filler cap from fuel filler neck and then
reinstall it.
• As fuel feed line is still under high fuel pressure even after stopping engine, loosening or
disconnecting fuel feed line directly may cause dangerous spout of fuel. Before loosening or
disconnecting fuel feed line, make sure to relieve fuel pressure referring to “Fuel Pressure Relief
Procedure”.
• A small amount of fuel may be released when the fuel line is disconnected. In order to reduce the
risk of personal injury, cover a shop cloth to the fitting to be disconnected. Be sure to put that cloth
in an approved container after disconnecting.
• Never run engine with fuel pump relay disconnected when engine and exhaust system are hot.
• Note that fuel hose connection varies with each type of pipe. Be sure to connect and clamp each
hose correctly referring to “Fuel Hose Disconnecting and Reconnecting”.
After connecting, make sure that it has no twist or kink.
• When installing injector or fuel feed pipe, lubricate its O-ring with gasoline.
• When servicing the fuel tank, it should be treated with respect, with no contact with sharp edges or
hot surfaces. In addition, the fuel tank should not be dropped since fuel tank, fuel pump and other
components can be damaged by the impact. If dropped, all components should be replaced because
there is a risk of damage.
• The fuel tank is made of resin.
Be sure not to allow solvent (chemical article such as grease and sealant) to attach to the fuel tank
as some chemical reaction may occur, causing the fuel tank to be swollen, hardened or distorted
leakage and resulting in fuel leakage from the fuel tank.

Downloaded from www.Manualslib.com manuals search engine Fuel System: 1G-2
General Description
Fuel System DescriptionS6RW0D1701001
CAUTION!
This engine requires the unleaded fuel only.
The leaded and/or low lead fuel can result in
engine damage and reduce the effectiveness
of the emission control system.

The main components of the fuel system are fuel tank,
fuel pump assembly (with fuel filter, fuel level gauge, fuel
pressure regulator), fuel feed line and fuel vapor line.
For the details of fuel flow, refer to “Fuel Delivery System
Diagram”.
Fuel Delivery System DescriptionS6RW0D1701002
The fuel delivery system consists of the fuel tank, fuel
pump assembly (with built-in fuel filter and fuel pressure
regulator), delivery pipe, injectors and fuel feed line.
The fuel in the fuel tank is pumped up by the fuel pump,
sent into delivery pipe and injected by the injectors.
As the fuel pump assembly is equipped with built-in fuel
filter and fuel pressure regulator, the fuel is filtered and
its pressure is regulated before being sent to the feed
pipe.
The excess fuel at fuel pressure regulation process is
returned back into the fuel tank.
Also, fuel vapor generated in fuel tank is led through the
fuel vapor line into the EVAP canister.
For system diagram, refer to “Fuel Delivery System
Diagram”.
Fuel Pump DescriptionS6RW0D1701003
The fuel pump (1) is an in-tank type electric pump.
Incorporated in the pump assembly are;
a fuel filter (2), a fuel pressure regulator (3) and a fuel
level sensor (gauge) (4).
2
41
3
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Downloaded from www.Manualslib.com manuals search engine 1G-3 Fuel System:
Schematic and Routing Diagram
Fuel Delivery System DiagramS6RW0D1702001
Diagnostic Information and Procedures
Fuel Pressure InspectionS6RW0D1704001
WARNING!
Before starting the following procedure, be
sure to observe “Precautions on Fuel System
Service” in order to reduce the risk of fire and
personal injury.

1) Relieve fuel pressure in fuel feed line referring to
“Fuel Pressure Relief Procedure”.
2) Disconnect fuel feed hose from fuel delivery pipe.
3) Connect special tools and hose between fuel feed
hose (1) and fuel delivery pipe as shown in figure,
and clamp hoses securely in order to ensure that no
leaks occur during checking.
Special tool
(A): 09912–58442
(B): 09912–58432
(C): 09912–58490
73 6
1 4
5
8
9
2
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1. Fuel tank 4. Delivery pipe 7. Fuel filter
2. Fuel pump assembly 5. Fuel injector 8. Fuel level sensor (gauge)
3. Fuel pressure regulator 6. Fuel feed line 9. Fuel pump
(C) (B)
(A)
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Downloaded from www.Manualslib.com manuals search engine Fuel System: 1G-4
4) Check that battery voltage is 11 V or more.
5) Measure fuel pressure at each condition.
If measured pressure is out of specification, refer to
“Fuel Pressure Check in Section 1A” and check each
possibly defective part. Replace if found defective.
a) Turn ignition switch ON to operate fuel pump and
after 2 seconds turn it OFF. Repeat this 3 or 4
times and then check fuel pressure.
Fuel pressure specification
With fuel pump operating and engine
stopped: 360 – 400 kPa (3.6 – 4.0 kgf/cm2,
51.2 – 56.9 psi)
b) Start engine and warm it up to normal operating
temperature, and measure fuel pressure at
idling.
Fuel pressure specification
At specified idle speed: 360 – 400 kPa (3.6 –
4.0 kgf/cm2, 51.2 – 56.9 psi)
c) Stop engine, and measure fuel pressure at one
minute after stopping.
Fuel pressure specification
With 1 min. after engine (fuel pump) stop
(Pressure reduces as time passes): Over 250
kPa (2.5 kgf/cm
2, 35.6 psi)
6) After checking fuel pressure, remove fuel pressure
gauge.
WARNING!
As fuel feed line is still under high fuel
pressure, make sure to release fuel pressure
according to the following procedures.
• Place fuel container under joint.
• Cover joint with rag (1) and loosen joint nut
slowly in order to release fuel pressure
gradually.

7) Remove special tools from fuel delivery pipe and fuel
feed hose.
8) Connect fuel feed hose to fuel delivery pipe and
clamp it securely.
9) With engine OFF and ignition switch ON, check for
fuel leaks.
Fuel Cut Operation InspectionS6RW0D1704002
NOTE
Before inspection, make sure that gear shift
lever is in neutral position (shift select lever
is “P” range for A/T vehicle), A/C is OFF and
parking brake lever is pulled all the way up.

1) Warm engine up to normal operating temperature.
2) While listening to sound of injector (2) by using
sound scope (1) or such, increase engine speed to
higher than 3,000 r/min.
3) Check to make sure that injector operation sound is
stop when throttle valve is closed instantly and it is
heard again when engine speed is reduced to
approx. 2,000 r/min or less.
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Downloaded from www.Manualslib.com manuals search engine 1G-5 Fuel System:
Repair Instructions
Fuel System ComponentsS6RW0D1706001
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1. Fuel tank 11. Fuel vapor line 21. Fuel pump bolt
2. Fuel pump assembly 12. Fuel tank protector 22. Fuel tank inlet valve
3. Fuel tank filler hose 13. Insulator 23. Fuel pump gasket
4. Fuel tank filler neck 14. To EVAP canister purge valve 24. Earth bracket
5. Fuel filler cap 15. Fuel filler packing : 45 N⋅m (4.5 kgf-m, 33.0 lb-ft)
6. To EVAP canister 16. Delivery pipe : 25 N⋅m (2.5 kgf-m, 18.0 lb-ft)
7. Fuel feed line 17. Fuel injector : 11 N⋅m (1.1 kgf-m, 8.0 lb-ft)
8. Delivery pipe bolt 18. Cushion : Do not reuse.