spark plugs replace SUZUKI SWIFT 2000 1.G SF310 Service Workshop Manual

0B-2 MAINTENANCE AND LUBRICATION
MAINTENANCE SCHEDULE
NORMAL CONDITION SCHEDULE
Interval:
This interval should be
judged by
This table includes services as scheduled up to 90,000 km (54,000 miles)
mileage. Beyond 90,000 km (54,000 miles), carry out the same services at
the same intervals respectively.
jg y
odometer reading or months,Km(
1,000)153045607590
whichever comes first.Miles(
1,000)91827364554
Months122436486072
1. ENGINE
1-1.Drive belt (tension,V-beltIRIRIR
damage)
V-rib belt (Flat type)––I––R
1-2.Camshaft timing beltReplace every 100,000 km (60,000 miles).
1-3.Valve lash (1.3 liter engine)–I–I–I
1-4.Engine oilVehicle with O2S (SG, SH, SJ)RRRRRR
and oil filter
Vehicle with O2S (SE, SF)
Vehicle without O2SReplace every 10,000 km (6,000 miles)
or 8 months
1-5.Engine coolant–R–R–R
1-6.Exhaust system (leakage, damage, tightness)–I–I–I
2. IGNITION SYSTEM
2-1.Spark plugsWhen unleaded
fuel is usedVehicle
without
O2S
–R–R–R
Vehicle
with O2S––R––R
When leaded fuel is usedRefer to “Severe Driving Condition” schedule.
2-2.Distributor cap and rotor (if equipped)––I––I
3. FUEL SYSTEM
3-1.Air cleaner filterPaved-roadIIRIIR
Dusty conditionRefer to “Severe Driving Condition” schedule.
3-2.Fuel lines (deterioration, leakage, damage)–I–I–I
3-3.Fuel tank––I––I
NOTES:

For Item 2-1 “spark plugs”, replace every 50,000 km if the local law requires.

For Sweden, Item 2-1, 4-1 and 4-2 should be performed by odometer reading only.

For Item 1-2 Camshaft timing belt: This belt may be replaced every 90,000 km (54,000 miles) according
to customer’s maintenance convenience.

0B-4 MAINTENANCE AND LUBRICATION
MAINTENANCE RECOMMENDED UNDER SEVERE DRIVING CONDITIONS
If the vehicle is usually used under the conditions corresponding to any severe condition code given below, it is
recommended that applicable maintenance operation be performed at the particular interval as given in the chart
below.
Severe condition code
A –Repeated short trips F –Leaded fuel use
B –Driving on rough and/or muddy roads G –(For Diesel engine) Town use / Towing a trailer /
C –Driving on dusty roads Sustained high speed driving /
D –Driving in extremely cold weather and/or Hot climates above 30C (86F) /
salted roads Low quality lubricants or fuel
E –Repeated short trips in extremely cold weather H –Trailer towing (if admitted)
Severe
Condition Code
MaintenanceMaintenance
OperationMaintenance Interval
BCDITEM 1-1IEvery 15,000 km (9,000 miles)
or 12 months
– B C D – – – –Drive belt (V-rib belt)REvery 45,000 km (27,000 miles)
or 36 months
A – C D E F – HITEM 1-4
Engine oil and filterREvery 5,000 km (3,000 miles)
or 4 months
A B C – E F – HITEM 2-1
Spark plugsREvery 10,000 km (6,000 miles)
or 8 months
ITEM 3 1IEvery 2,500 km (1,500 miles)
– – C – – – – –ITEM 3-1
Air cleaner filter *1REvery 30,000 km (18,000 miles)
or 24 months
– B C D – – – HITEM 6-2
Wheel bearingsIEvery 15,000 km (9,000 miles)
or 12 months
– B – D E – – H
ITEM 6-3
Propeller shaft (4WD) and drive
shafts
I
Every 15,000 km (9,000 miles)
or 12 months
– B – – E – – H
ITEM 6-7 / 6-8
Manual transmission oil and
differential oil (4WD)
R
Every 30,000 km (18,000 miles)
or 24 months
– B – – E – – HITEM 6-9
Automatic transmission fluidREvery 30,000 km (18,000 miles)
or 24 months
NOTES:

“R”: Replace or change

“I”: Inspect and correct or replace if necessary

*1: Inspect or replace more frequently if necessary

0B-10 MAINTENANCE AND LUBRICATION
IGNITION SYSTEM
ITEM 2-1
Spark Plugs Replacement
Replace spark plugs with new ones referring to SECTION 6F or
6F1.
ITEM 2-2
Distributor Cap and Rotor Inspection (if equipped)

Check distributor cap and rubber caps for cracks.

Clean dusty and stained parts using a dry, soft cloth.

Check center electrode and terminals for wear.

Check rotor for cracks and its electrode for wear.
Repair or replace any component which is found to be in malcondi-
tion.
FUEL SYSTEM
ITEM 3-1
Air Cleaner Filter Inspection
1) Take out air cleaner filter as follows.
For 1.0 liter engine:
i) Remove air cleaner upper case after removing case nut and
clamps.
ii) Remove air cleaner filter.
For 1.3 liter engine:
i) Disconnect air cleaner outlet hose from case after loosening
its clamp and removing bolt (1) shown in figure.
ii) Remove air cleaner case cap (3) from case by unhooking its
clamps (2), then take out air cleaner filter.

6-20 ENGINE GENERAL INFORMATION AND DIAGNOSIS (TBI FOR G10)
ENGINE BASIC INSPECTION
This check is very important for troubleshooting when ECM (PCM) has detected no DTC and no abnormality has
been found in visual inspection.
Follow the flow table carefully.
STEP
ACTIONYESNO
1Was “ENGINE DIAG. FLOW TABLE” performed?Go to Step 2.Go to “ENGINE DIAG.
FLOW TABLE”.
2Check battery voltage.
Is it 11 V or more?Go to Step 3.Charge or replace
battery.
3Is engine cranked?Go to Step 4.Go to “DIAGNOSIS”
in Section 6G.
4Does engine start?Go to Step 5.Go to Step 7.
5Check idle speed as follows.
1) Warm up engine to normal operating temp.
2) Shift transmission to neutral position for M / T
(“P” position for A / T).
3) All of electrical loads are switched off.
4) Check engine idle speed with scan tool.
See Fig. 1.
Is it 800 – 900 r / min.?Go to Step 6.Go to “ENGINE
DIAGNOSIS TABLE”.
6Check ignition timing as follows.
1) Select “MISC” mode on SUZUKI scan tool and
fix ignition timing to initial one. See Fig. 2.
2) Using timing light (1), check initial ignition timing.
See Fig. 3.
Is it 5 ± 3 BTDC at specified idle speed?Go to “ENGINE
DIAGNOSIS TABLE”.Check ignition control
related parts referring
to Section 6F.
7Check immobilizer system malfunction as follows.
1) Check immobilizer indicator lamp for flashing.
Is it flashing when ignition switch is turned to ON
position?Go to “DIAGNOSIS” in
Section 8A.Go to Step 8.
8Check fuel supply as follows.
1) Check to make sure that enough fuel is filled in fuel
tank.
2) Turn ON ignition switch for 2 seconds and then
OFF. See Fig. 4.
Is fuel return pressure (returning sounds) felt from fuel
feed hose (1) when ignition switch is turned ON?Go to Step 10.Go to Step 9.
9Check fuel pump for operating.
1) Was fuel pump operating sound heard from fuel
filler for about 2 seconds after ignition switch ON
and stop?Go to “DIAG. FLOW
TABLE B-3”.Go to “DIAG. FLOW
TABLE B-2”.
10Check ignition spark as follows.
1) Disconnect injector coupler.
2) Remove spark plugs and connect them to high
tension cords.
3) Ground spark plugs.
4) Crank engine and check if each spark plug sparks.
Is it in good condition?Go to Step 11.Go to “DIAGNOSIS”
in Section 6F.
11Check fuel injector for operation as follows.
1) Install spark plugs and connect injector
connectors.
2) Check that fuel is injected out in conical shape
from fuel injector when cranking.
Is it in good condition?Go to “ENGINE
DIAGNOSIS TABLE”.Go to “DIAG. FLOW
TABLE B-1”.

6-70 ENGINE GENERAL INFORMATION AND DIAGNOSIS (TBI FOR G10)
INSPECTION
STEPACTIONYESNO
1Was “ENGINE DIAG. FLOW TABLE” performed?Go to Step 2.Go to “ENGINE
DIAG. FLOW
TABLE“.
2Is there DTC other than Fuel system (DTC P0171 / P0172)
and misfire (DTC P0300-P0303)?Go to applicable
DTC Diag.
Flow Table.Go to Step 3.
3Check Ignition System.
1) Remove spark plugs and check them for;

Air gap: 1.0 – 1.1 mm (0.040 – 0.043 in.) See Fig. 1.

Carbon deposits

Insulator damage

Plug type
If abnormality is found, adjust, clean or replace.
2) Disconnect injector connector. See Fig. 2.
3) Connect spark plugs to high tension cords and then
ground spark plugs.
4) Crank engine and check that each spark plug sparks.
Are above check results satisfactory?Go to Step 4.Check ignition
system parts
(Refer to Section
6F).
4Check Fuel Pressure (Refer to Section 6E1 for details).
1) Release fuel pressure from fuel feed line.
2) Install fuel pressure gauge. See Fig. 3.
3) Check fuel pressure.
With fuel pump operating
and engine at stop : 160 – 210 kPa, 1.6 – 2.1 kg / cm
2,
22.7 – 29.9 psi.
At specified idle speed : 90 – 140 kPa, 0.9 – 1.4 kg / cm
2,
12.8 – 20.0 psi.
Is measured value as specified?
Go to Step 5.Go to Diag. Flow
Table B-3 fuel
pressure check.
5Check Fuel Injector and Circuit.
1) Turn ignition switch OFF and disconnect fuel injector
connector.
2) Check for proper connection to fuel injector at each terminal.
3) If OK, then check injector resistance. See Fig. 4.
Injector resistance: 0.5 – 1.5 Ω at 20C (68F).
4) Connect injector connector.
5) Check that fuel is injected out in conical shape from fuel
injector when running engine.
6) Check injector for fuel leakage after engine stop.
Fuel leakage: Less than 1 drop / min.
Is check result satisfactory?Go to Step 6.Check injector
circuit or replace
fuel injector.

6-1-20 ENGINE GENERAL INFORMATION AND DIAGNOSIS (SFI FOR G13)
ENGINE BASIC INSPECTION
This check is very important for troubleshooting when ECM (PCM) has detected no DTC and no abnormality has
been found in visual inspection.
Follow the flow table carefully.
STEP
ACTIONYESNO
1Was “ENGINE DIAG. FLOW TABLE” performed?Go to Step 2.Go to “ENGINE DIAG.
FLOW TABLE”.
2Check battery voltage.
Is it 11 V or more?Go to Step 3.Charge or replace
battery.
3Is engine cranked?Go to Step 4.Go to “DIAGNOSIS”
in Section 6G.
4Does engine start?Go to Step 5.Go to Step 7.
5Check idle speed as follows:
1) Warm up engine to normal operating temp.
2) Shift transmission to neutral position for M / T
(“P” position for A / T).
3) All of electrical loads are switched off.
4) Check engine idle speed with scan tool.
See Fig. 1.
Is it 700 – 800 r / min?Go to Step 6.“ENGINE DIAGNO-
SIS TABLE” in this
section.
6Check ignition timing as follows:
1) Using SUZUKI scan tool, select “MISC” mode on
SUZUKI scan tool and fix ignition timing to initial
one. See Fig. 2.
2) Remove air cleaner bolt and shift air cleaner
position to observe ignition timing.
3) Using timing light (1), check initial ignition timing.
See Fig. 3.
Is it 5 ± 3 BTDC at specified idle speed?“ENGINE DIAGNO-
SIS TABLE” in this
section.Check ignition control
related parts referring
to Section 6F1.
7Check fuel supply as follows:
1) Check to make sure that enough fuel is filled in fuel
tank.
2) Turn ON ignition switch for 2 seconds and then
OFF. See Fig. 4.
Is fuel return pressure (returning sounds) felt from fuel
feed hose (1) when ignition switch is turned ON?Go to Step 9.Go to Step 8.
8Check fuel pump for operating.
1) Was fuel pump operating sound heard from fuel
filler for about 2 seconds after ignition switch ON
and stop?Go to “DIAG. FLOW
TABLE B-3”.Go to “DIAG. FLOW
TABLE B-2”.
9Check ignition spark as follows:
1) Disconnect injector couplers.
2) Remove spark plugs and connect them to high
tension cords.
3) Ground spark plugs.
4) Crank engine and check if each spark plug sparks.
Is it in good condition?Go to Step 10.Go to “DIAGNOSIS”
in Section 6F1.
10Check fuel injector for operation as follows:
1) Install spark plugs and connect injector
connectors.
2) Using sound scope (1), check operating sound of
each injector (2) when cranking engine. See Fig. 5.
Was injector operating sound heard from all
injectors?“ENGINE DIAGNO-
SIS TABLE” in this
section.Go to “DIAG. FLOW
TABLE B-1”.

ENGINE GENERAL INFORMATION AND DIAGNOSIS (SFI FOR G13) 6-1-71
INSPECTION
STEPACTIONYESNO
1Was “ENGINE DIAG. FLOW TABLE” performed?Go to Step 2.Go to “ENGINE
DIAG. FLOW
TABLE“.
2Is there DTC other than Fuel system (DTC P0171 / P0172)
and misfire (DTC P0300-P0304)?Go to applicable
DTC Diag.
Flow Table.Go to Step 3.
3Check Ignition System.
1) Remove spark plugs and check them for;

Air gap: 1.0 – 1.1 mm (0.040 – 0.043 in.) See Fig. 1.

Carbon deposits

Insulator damage

Plug type
If abnormality is found, adjust, clean or replace.
2) Disconnect all injector connectors. See Fig. 2.
3) Connect spark plugs to high tension cords and then ground
spark plugs.
4) Crank engine and check that each spark plug sparks.
Are above check results satisfactory?Go to Step 4.Check ignition
system parts
(Refer to Section
6F1).
4Check Fuel Pressure (Refer to Section 6E2 for details).
1) Release fuel pressure from fuel feed line.
2) Install fuel pressure gauge. See Fig. 3.
3) Check fuel pressure.
With fuel pump operating
and engine at stop : 270 – 310 kPa, 2.7 – 3.1 kg / cm
2,
38.4 – 44.0 psi.
At specified idle speed : 200 – 240 kPa, 2.0 – 2.4 kg / cm
2,
28.4 – 34.1 psi.
Is measured value as specified?
Go to Step 5.Go to Diag. Flow
Table B-3 fuel
pressure check.
5Check Fuel Injectors and Circuit.
1) Using sound scope (1) or such, check operating sound of
each injector (2) when engine is running. Cycle of
operating sound should very according to engine speed.
See Fig 4.
If no sound or an unusual sound is heard, check injector
circuit (wire or coupler) or injector.
2) Turn ignition switch OFF and disconnect a fuel injector
connector.
3) Check for proper connection to fuel injector at each
terminal. See Fig. 5.
4) If OK, then check injector resistance.
Injector Resistance: 12 – 13 ohm at 20C (68F)
5) Carry out steps 1) and 3) on each injector.
6) Check each injector for injected fuel volume referring to
Section 6E2. See Fig. 6.
Injected Fuel Volume: 38 – 48 cc / 15 sec (1.28 / 1.34 –
1.62 / 1.69 US / Imp. oz / 15 sec)
7) Check each injector for fuel leakage after injector closed.
Fuel Leakage: Less than 1 drop / min.
Is check result in step 1) and 3) to 7) satisfactory?Go to Step 6.Check injector
circuit or replace
fuel injector(s).

6-1-72 ENGINE GENERAL INFORMATION AND DIAGNOSIS (SFI FOR G13)
Disconnect connectors when checking plugs
for spark1. Fuel delivery pipe
2. Fuel feed hose
3. FUel pressure
gauge & 3 way joint
STEPACTIONYESNO
6Check PCV valve for clogging (See Section 6E2).
Is it in good condition?Go to Step 7.Replace PCV valve.
7Check EVAP Canister Purge Valve for Closing.
1) Disconnect purge hose (1) from EVAP canister.
2) Place finger against the end of disconnected hose.
3) Check that vacuum is not felt there, when engine is
cool and running at idle. See Fig. 7.
Is vacuum felt?Check EVAP
control system
(See Section 6E2).Go to Step 8.
8Check intake manifold pressure sensor for performance
(See DTC P0105 Diag. Flow Table).
Is it in good condition?Go to Step 9.Repair or replace.
9Check engine coolant temp. sensor for performance
(See Section 6E2).
Is it in good condition?Go to Step 10.Replace engine
coolant temp.
sensor.
10Check parts or system which can cause engine rough
idle or poor performance.
–Engine compression (See Section 6A1).
–Valve lash (See Section 6A1).
–Valve timing (Timing belt installation. See Section 6A1).
Are they in good condition?Check wire harness
and connection of
ECM (PCM) ground,
ignition system and
fuel injector for
intermittent open
and short.Repair or replace.
Fig. 1 for Step 3 Fig. 2 for Step 3 Fig. 3 for Step 4
Fig. 4 for Step 5 Fig. 5 for Step 4 Fig. 6 for Step 5
Fig. 7 for Step 7

IGNITION SYSTEM 6F-3
DIAGNOSIS
ConditionPossible CauseCorrection
Engine cranks, but will
not start or hard to start
Blown fuse for ignition coil

Loose connection or disconnection of lead wire or
high-tension cord(s)

Faulty high-tension cord(s)

Faulty spark plug(s)

Cracked rotor or cap

Maladjusted signal rotor air gap

Faulty ignition coil

Faulty noise suppressor

Faulty CMP sensor

Faulty igniter

Faulty ECM (or PCM)

Maladjusted ignition timingReplace
Connect securely
Replace
Adjust, clean or replace
Replace
Adjust
Replace
Replace
Replace
Replace
Replace
Adjust
Poor fuel economy or
engine performance
Incorrect ignition timing

Faulty spark plug(s) or high-tension cord(s)

Faulty ECM (or PCM)Adjust
Adjust, clean or replace
Replace
DIAGNOSTIC FLOW TABLE
STEPACTIONYESNO
1Was “Engine Diagnostic Flow Table” in SECTION 6
performed?Go to Step 2.Go to “Engine
Diagnostic Flow
Table” in SECTION 6.
2Ignition Spark Test
1) Check all spark plug for condition and type,
referring to “Spark Plugs” in this section.
2) If OK, perform ignition spark test, referring to
“Ignition Spark Check” in this section.
Is spark emitted from all spark plugs?Go to Step 11 on the
next page.Go to Step 3.
3Diagnostic Trouble Code (DTC) Check
1) Check DTC stored in ECM (or PCM), referring to
“Diagnostic Trouble Code (DTC) Check” in
SECTION 6.
Is DTC stored?Go to applicable flow
table corresponding to
that code No. in
SECTION 6.Go to Step 4.
4Electrical Connection and Noise Suppressor Check
1) Check ignition coil for electrical connection and
noise suppressor for conductivity.
Are they good condition?Go to Step 5.Repair or replace.
5High-tension Cord Check
1) Check high-tension cord for resistance, referring
to “High-tension Cords” in this section.
Is check result satisfactory?Go to Step 6.Replace high-tension
cord(s).

6F-6 IGNITION SYSTEM
6) If resistance exceeds specification, inspect distributor terminal
and replace high-tension cord(s) and/or distributor cap as re-
quired.
CAUTION:

Never attempt to use metal conductor high-tension cords
as replacing parts.

Insert each cap portion fully when installing high-tension
cords.
SPARK PLUGS
1) Pull out high-tension cords by gripping their caps and then re-
move spark plugs.
2) Inspect them for:

Electrode wear

Carbon deposits

Insulator damage
3) If any abnormality is found, adjust air gap, clean with spark plug
cleaner or replace them with specified new plugs.
Spark plug air gap “a’’: 1.0 – 1.1 mm (0.039 – 0.043 in.)
Spark plug type : NGK BPR6ES-11
: DENSO W20EPR-U11
4) Install spark plugs and torque them to specification.
Tightening Torque for spark plug
25 N
.m (2.5 kg-m, 18.0 lb-ft)
5) Install high-tension cords securely by gripping their caps.
NOISE SUPPRESSOR
REMOVAL
1) Unwrap tape from noise suppressor.
2) Disconnect coupler of noise suppressor.
3) Remove noise suppressor.
INSTALLATION
Reverse removal procedure for installation.
INSPECTION
Using an ohmmeter (1) to check continuity as the following.
“a” – “b”: No continuity
“a” – “c”: No continuity
“c” – “d”: Continuity (Approx. 2.2 kΩ)
If check result is not satisfactory, replace noise suppressor (2).