Hose SUZUKI SWIFT 2008 2.G Service Repair Manual
Page 365 of 1496
Downloaded from www.Manualslib.com manuals search engine Engine Cooling System:  1F-2
Coolant capacity
For M/T model:• Engine, radiator and heater: 5.5 liters (11.62/9.68 US/lmp pt.)
• Reservoir: 0.7 liters  (1.48/1.23 US/lmp pt.)
• Total: 6.2 liters (13.10/10.91 US/lmp pt.)
For A/T model: • Engine, radiator and heater: 5.4 liters (11.41/9.50 US/lmp pt.)
• Reservoir: 0.7 liters  (1.48/1.23 US/lmp pt.)
• Total: 6.1 liters (12.89/10.74 US/lmp pt.)
Schematic and Routing Diagram
Coolant CirculationS7RS0B1602001
While the engine is warmed up (thermosta t closed), coolant circulates as follows.
11
10 3 7
4
9
8
6
5
2 12 1
13
I6RS0C160001-01
1. Radiator inlet hose
6. Water pump11. Heater core
2. Radiator outlet hose 7. Throttle body12. Radiator
3. Throttle body inlet hose 8. Engine13. Heat exchanger
4. Throttle body outlet hose 9. Heater core inlet hose
5. Thermostat 10. Heater core outlet hose  
Page 366 of 1496
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When coolant is warmed up to normal temperature and the thermostat opens, coolant passes through the radiator 
core to be cooled as follows.
11
10 3 7
4
9
8
6
5
2 12 1
13
I6RS0C160002-01
1. Radiator inlet hose
6. Water pump11. Heater core
2. Radiator outlet hose 7. Throttle body12. Radiator
3. Throttle body inlet hose 8. Engine13. Heat exchanger
4. Throttle body outlet hose 9. Heater core inlet hose
5. Thermostat 10. Heater core outlet hose  
Page 368 of 1496
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Repair Instructions
Cooling System ComponentsS7RS0B1606001
I7RS0B160004-01
F: Vehicle forward10. Water outlet cap gasket 20. Heater outlet No.2 hose 30. Heat exchanger water pipe
1. Radiator 11. O-ring 21. Heater union 31. To cylinder head
2. Reservoir 12. Thermostat case water outlet pipe 22. Heater inlet No.1 hose 32. To water pump
3. Engine cooling fan assembly 13. Thermostat case 23. Heater outlet No.1 hose33. To heater core
4. Radiator cap 14. Thermostat 24. Water bypass No.2 hose 34. To throttle body
5. Drain plug 15. Thermostat cap 25. Heat exchanger 35. Heater inlet No.2 hose
6. Radiator outlet hose 16. Water bypass No.1 hose 26.Heat exchanger inlet No.1 hose 36. Heater inlet pipe
7. Radiator inlet hose 17. Water inlet No.1 pipe 27. Heat exchanger inlet No.2 hose : 15 N⋅m (1.5 kgf-m, 11.0 lb-ft)
8. Water outlet cap 18. Water inlet hose 28. Heat exchanger outlet No.1 hose : Do not reuse.
9. ECT sensor 19. Water inlet No.2 pipe 29. Heat exchanger outlet No.2 hose  
Page 369 of 1496
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Coolant Level CheckS7RS0B1606002
WARNING! 
To help avoid danger of being burned, do not 
remove radiator cap while engine and 
radiator are still hot. Scalding fluid and steam 
can be blown out under pressure if radiator 
cap is taken off too soon.
 
To check level, lift hood and look at “see-through” 
coolant reservoir.
It is not necessary to remove radiator cap to check 
coolant level.
When engine is cool, check coolant level in reservoir (1).
A normal coolant level should be between FULL mark 
(2) and LOW mark (3) on reservoir (1).
If coolant level is below LOW  mark (3), remove reservoir 
cap (4) and add proper coolant to reservoir to bring 
coolant level up to FULL mark (2).
NOTE
If proper quality antifreeze is used, there is 
no need to add extra inhibitors or additives 
that claim to improve system. They may be 
harmful to proper operation of system, and 
are unnecessary expense.
 
Engine Cooling System Inspection and 
Cleaning
S7RS0B1606003
WARNING! 
To help avoid danger of being burned, do not 
remove radiator cap while engine and 
radiator are still hot. Scalding fluid and steam 
can be blown out under pressure if cap is 
taken off too soon.
 
1) Check cooling system for leakage or damage.
2) Wash radiator cap and fille r neck with clean water by 
removing radiator cap when engine is cold.
3) Check coolant for proper level and freeze protection.
4) Using a pressure tester (1), check system and  radiator cap (2) for proper pressure holding capacity.
If replacement of cap is required, use a proper cap 
for this vehicle.
NOTE
After installing radiator cap to radiator, make 
sure that the ear of cap lines is parallel to 
radiator.
 
Cooling system and radiator cap holding 
pressure (for inspection)
110 kPa (1.1 kg/cm2, 15.6 psi)
5) Tighten hose clamps and inspect all hoses. Replace  hoses whenever cracked, swollen or otherwise 
deteriorated.
6) Clean frontal area of radiator core.
Cooling System DrainingS7RS0B1606004
1) Remove radiator cap.
2) Drain coolant from radiator drain plug (1).
3) After draining coolant, be sure to tighten drain plug  (1) securely.
1
4
1
3
2
4
I4RS0B160002-01
I5RH01160001-01
1I4RS0A160003-01  
Page 370 of 1496
Downloaded from www.Manualslib.com manuals search engine 1F-7 Engine Cooling System: 
Cooling System Flush and RefillS7RS0B1606005
WARNING! 
To help avoid danger of being burned, do not 
remove radiator cap while engine and 
radiator are still hot. Scalding fluid and steam 
can be blown out under pressure if cap is 
taken off too soon.
 
NOTE
For detail of coolant specification, refer to 
“Coolant Description”.
 
1) Remove radiator cap when engine is cool as follows.a) Turn cap counterclockwise slowly until it reaches  a “stop” (Do not press down while turning it).
b) Wait until pressure is relieved (indicated by a  hissing sound) then press down on cap and 
continue to turn it counterclockwise.
2) With radiator cap removed, run engine until upper  radiator hose is hot (this shows that thermostat is 
open and coolant is flowing through system).
3) Stop engine and drain coolant from radiator drain  plug (1).
4) Close radiator drain plug. Add water until system is  filled and run engine until up per radiator hose is hot 
again.
5) Repeat Steps 3) and 4) several times until drained  liquid is nearly colorless.
6) Close radiator drain plug (1) tightly. 7) Remove reservoir (1) and remove cap (2) from 
reservoir (1).
8) Pour out any fluid, scrub and clean inside of  reservoir with soap and water.
Flush it well with clean water and drain, Reinstall 
reservoir.
9) Fill reservoir with coolant up  to “Full” level mark (3).
10) Install reservoir cap (2) on reservoir. 11) Fill radiator with coolant up to bottom of radiator filler  neck and install radiator cap, making sure that the 
ear of cap lines is parallel to radiator.
12) Run engine at idle speed.
13) Run engine until radiator fan motor is operated.
14) Stop engine and wait until engine comes cooled  down to help avoid danger of being burned.
15) Add coolant to radiator up  to bottom of radiator filler 
neck, and install radiator ca p, making sure that the 
ear of cap lines is parallel to radiator.
16) Repeat Step 12) through 15).
17) Confirm that reservoir cool ant level is “Full” level 
mark (3). If coolant is insu fficient, repeat Step 9) and 
10).
Cooling Water Pipes or Hoses Removal and 
Installation
S7RS0B1606006
Removal
1) Drain coolant referring to “Cooling System Draining”.
2) To remove these pipes or hoses, loosen clamp on  each hose and pull hose end off.
Installation
Install removed parts in reverse order of removal 
procedure, noting the following.
• Tighten each clamp securely referring to “Cooling  System Components”.
• Refill cooling system referrin g to Step 7) to 22) of 
“Cooling System Flush and Refill”.
1I4RS0A160003-01
1
2
1
3
2
I7RS0B160005-01  
Page 371 of 1496
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Thermostat Removal and InstallationS7RS0B1606007
Removal1) Drain coolant referring to “Cooling System Draining”.
2) Remove intake manifold referring to “Intake Manifold  Removal and Installa tion in Section 1D”.
3) Remove generator referring to “Generator  Dismounting and Remounting in Section 1J”.
4) Disconnect water hose (1) and heater hose (2) from  each pipe.
5) Remove thermostat case  (3) with thermostat cap (4) 
and water inlet pipe (5).
6) Remove water inlet pipe with thermostat cap from  thermostat case.
7) Remove thermostat from  thermostat case (3).
Installation
Reverse removal procedure for installation noting the 
following points.
• Install thermostat cap (1) to thermostat case (2) by  aligning match mark (3) of thermostat case with air 
bleed valve (4) of the thermostat (5).
• Use new O-rings when installing.
• Adjust water pump belt tension referring to “Water  Pump / Generator Drive Belt Tension Inspection and 
Adjustment in Section 1J”.
• Adjust A/C compressor belt tension referring to  “Compressor Drive Belt Inspection and Adjustment in 
Section 7B” or “Compressor Drive Belt Inspection and 
Adjustment in Section 7B”. • Refill cooling system referrin
g to Step 7) to 22) of 
“Cooling System Flush and Refill”.
• Verify that there is no coolant leakage at each  connection.
Thermostat InspectionS7RS0B1606008
• Make sure that air bleed valve (1) of thermostat is clean.
• Check to make sure that va lve seat (2) is free from 
foreign matters which would prevent valve from 
seating tight.
• Check thermostat seal (3) for breakage, deterioration  or any other damage.
• Check thermostatic movement of wax pellet as  follows:
a. Immerse thermostat (1) in water, and heat water  gradually.
b. Check that valve starts to open at specific  temperature.
Temperature at which valve begins to open
80 – 84  °C (176 – 183  °F)
Temperature at which valve become fully open
95 – 97  °C (203  °F)
Va l v e  l i ft
More than 8 mm at 95  °C (203 ° F)
If valve starts to open at a temperature substantially 
below or above specific temperature, thermostat unit 
should be replaced with a new one. Such a unit, if 
reused, will bring about ov ercooling or overheating 
tendency.
I3RM0A160007-01
4
5 3
1 2
I7RS0B160006-01
2. Thermometer
3. Heater
I3RM0A160008-01
I2RH01160012-01  
Page 373 of 1496
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Radiator Cooling Fan Removal and InstallationS7RS0B1606011
Removal1) Disconnect negative (–) cable at battery.
2) Disconnect connector (1) of cooling fan motor.
3) Drain coolant.
4) Remove front bumper, front bumper upper absorber  and upper member referring to “Front Bumper and 
Rear Bumper Componen ts in Section 9K”.
5) Remove radiator inlet hose and reservoir hose.
6) Remove cooling fan mounting bolts (1).
7) Slide condenser with radiator, and then remove  radiator cooling fan.
CAUTION! 
Be sure not to damage condenser outlet pipe.
 
Installation
Reverse removal procedure for installation noting the 
following.
• Refill cooling system referring to Step 7) to 22) of “Cooling System Fl ush and Refill”.
• After installation, verify there is no coolant leakage at  each connection.
Radiator On-Vehicle Inspection and CleaningS7RS0B1606012
Inspection
Check radiator for leakage or damage. Straighten bent 
fins, if any.
Cleaning
Clean frontal area of radiator cores.
Radiator Removal and InstallationS7RS0B1606013
Removal
1) Disconnect negative cable at battery.
2) Drain A/T fluid.
3) Drain coolant.
4) Remove cooling fan assemb ly referring to “Radiator 
Cooling Fan Removal and Installation”.
5) Remove A/T fluid cooler inlet and outlet hoses.
6) Remove radiator outlet hose from radiator.
7) Remove radiator from vehicle.
Installation
Reverse removal procedures, noting the following.
• Refill cooling system referrin g to Step 7) to 22) of 
“Cooling System Flush and Refill”.
• After installation, verify there is no coolant leakage  each connection.
• Refill A/T fluid referring  to “A/T Fluid Change in 
Section 5A”.
1
I7RS0A160004-01
I4RS0A160009-01
I2RH01160014-01  
Page 376 of 1496
Downloaded from www.Manualslib.com manuals search engine 1G-1 Fuel System: 
Engine
Fuel System
Precautions
Precautions on Fuel System ServiceS7RS0B1700001
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 pr essure 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 inje ctor or fuel feed pipe, lubr icate its O-ring with gasoline.
 
General Description
Fuel System DescriptionS7RS0B1701001
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 DescriptionS7RS0B1701002
The fuel delivery system consists of the fuel tank, fuel 
pump assembly (with built-in f uel 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”.  
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Fuel Pump DescriptionS7RS0B1701003
The fuel pump (1) is an in-tank type electric pump. 
Incorporated in the pump assembly are;
a fuel filter (2) and a fuel pressure regulator (3) are 
included and a fuel level gauge (4) is attached.
Addition of the fuel pressure regulator to the fuel pump 
makes it possible to mainta in the fuel pressure at 
constant level and ECM controls compensation for 
variation in the intake manifold pressure.
Schematic and Routing Diagram
Fuel Delivery System DiagramS7RS0B1702001
Diagnostic Information and Procedures
Fuel Pressure InspectionS7RS0B1704001
WARNING! 
Before starting the following procedure, be 
sure to observe “Precautions on Fuel System 
Service” in order to reduce the risk or 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
1
3
2
4
I6RS0C170001-01
4
6 7
8
12
2 3
11
10
5
1
9
I6RS0C170002-01
1. Fuel tank
5. Fuel injector9. EVAP canister
2. Fuel pump 6. Fuel feed line10. Fuel filter
3. Fuel pressure regulator 7. Fuel vapor line 11. Main fuel level sensor
4. Delivery pipe 8. Intake manifold12. EVAP canister purge valve
1
(C) (B)
(A)
I3RM0A170004-01  
Page 378 of 1496
Downloaded from www.Manualslib.com manuals search engine 1G-3 Fuel System: 
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: 270 – 310 kPa (2.7 – 3.1 kg/cm2, 38.4 
– 44.0 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: 270 – 310 kPa (2.7 – 
3.1 kg/cm2, 38.4 – 44.0 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 300 
kPa (3.0 kg/cm
2, 42.7 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 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 InspectionS7RS0B1704002
NOTE
Before inspection, make sure that gear shift 
lever is in neutral positi on (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.
I2RH01170032-01
I2RH0B170004-01