For A / TFor M / T
MAINTENANCE AND LUBRICATION 0B-9
1) Remove radiator cap when engine is cool.
2) Loosen radiator drain plug (1) to drain coolant.
3) Remove reservoir and drain.
4) Tighten drain plug securely. Also install reservoir.
5) Slowly pour specified amount of coolant to the base of radiator
filler neck, and run engine, with radiator cap removed, until ra-
diator upper hose is hot. This drives out any air which may still
be trapped within cooling system. Add coolant as necessary un-
til coolant level reaches filler throat of radiator. Reinstall radiator
cap.
6) Add coolant to reservoir (1) so that its level aligns with Full mark
(2). Then, reinstall cap to reservoir aligning match marks (3) on
reservoir and cap.
ITEM 1-6
Exhaust System Inspection
WARNING:
To avoid danger of being burned, do not touch exhaust sys-
tem when it is still hot.
Any service on exhaust system should be performed when
it is cool.
When carrying out periodic maintenance or vehicle is raised for oth-
er service, check exhaust system as follows:
Check rubber mountings for damage and deterioration.
Check exhaust system for leakage, loose connections, dents,
and damages.
If bolts or nuts are loose, tighten them to specification. Refer to
SECTION 6K for torque specification of bolts and nuts.
Check nearby body areas for damaged, missing or mispositioned
parts, open seams, holes, loose connections or other defects
which could permit exhaust fumes to seep into vehicle.
Make sure that exhaust system components have enough clear-
ance from underbody to avoid overheating and possible damage
to floor carpet.
Any defects should be fixed at once.
0B-12 MAINTENANCE AND LUBRICATION
EMISSION CONTROL SYSTEM
ITEM 4-1
PCV (Positive Crankcase Ventilation) Valve Inspection
Check crankcase ventilation hoses and PCV hoses for leaks,
cracks or clog, and PCV valve (1) for stick or clog. Refer to ON-VE-
HICLE SERVICE of SECTION 6E1 or 6E2 for PCV valve checking
procedure.
ITEM 4-2
Fuel Evaporative Emission Control System Inspection
1) Visually inspect hoses for cracks, damage or excessive bends.
Inspect all clamps for damage and proper position.
2) Check EVAP canister for operation and clog, referring to SEC-
TION 6E1 or 6E2.
If a malfunction is found, repair or replace.
BRAKE
ITEM 5-1
Brake Discs, Pads, Drums and Shoes Inspection
Brake discs and pads
NOTE:
If noise is heard from brake when brake pedal is depressed,
check brake pad lining for wear. If it is worn, both right and left
brake pads should be replaced with new ones.
1) Remove wheel and caliper but don’t disconnect brake hose from
caliper.
2) Check disc brake pads and discs for excessive wear, damage
and deflection. Replace parts as necessary. For the details, refer
to SECTION 5.
3) Install caliper and wheel.
Brake drums and shoes
1) Remove wheel and brake drum.
2) Check rear brake drums and brake linings for excessive wear
and damage.
At the same time, check wheel cylinders for leakage.
Replace as necessary.
For the details, refer to SECTION 5.
3) Install brake drum and wheel.
2WD
4WD
1. Oil filler / level plug
2. Oil drain plug
MAINTENANCE AND LUBRICATION 0B-17
ITEM 6-7
Manual Transmission Oil Inspection and Change
[Inspection]
1) Inspect transmission case for evidence of oil leakage.
Repair leaky point if any.
2) Make sure that vehicle is placed level for oil level check.
3) Remove oil level plug of transmission.
4) Check oil level.
Oil level can be checked roughly by means of filler / level plug
hole. That is, if oil flows out of level plug hole or if oil level is found
up to hole when level plug is removed, oil is properly filled.
If oil is found insufficient, pour specified oil up to level hole.
For specified oil, refer to description of oil change under ON-VE-
HICLE SERVICE in SECTION 7A or 7A1.
5) Tighten level plug to specified torque.
[Change]
1) Place the vehicle level and drain oil by removing drain plug.
2) Apply sealant to drain plug and tighten drain plug to specified
torque.
3) Pour specified oil up to level hole.
4) Tighten filler plug to specified torque.
For recommended oil, its amount and tightening torque data, re-
fer to ON-VEHICLE SERVICE of SECTION 7A or 7A1.
ITEM 6-8
Rear Differential Oil Inspection and Change
(4WD vehicle only)
[Inspection]
1) Inspect rear differential case for evidence of oil leakage.
Repair leaky point, if any.
2) Make sure that the vehicle is placed level for oil level check.
3) Remove level plug (1) of differential. Oil level can be checked
roughly by means of level plug hole.
That is, if oil flows out of level plug hole or if oil level is found up
to hole when level plug is removed, oil is properly filled.
If oil is found insufficient, pour specified amount of specified oil
as given in SECTION 7E.
4) Tighten it to specified torque.
[Change]
Place the vehicle level and drain oil by removing drain plug (2). Pour
specified amount of specified oil, tighten drain plug and filler plug
to specified torque, referring to ON-VEHICLE SERVICE in SEC-
TION 7E.
1. Oil level gauge
2. FULL HOT mark
3. LOW HOT mark
4. FULL COLD mark
5. LOW COLD mark
1. Drain plug
0B-18 MAINTENANCE AND LUBRICATION
ITEM 6-9
Automatic Transmission
[Fluid level inspection]
1) Inspect transmission case for evidence of fluid leakage.
Repair leaky point, if any.
2) Make sure that vehicle is placed level for fluid level check.
3) Check fluid level.
For fluid level checking procedure, refer to ON-VEHICLE SER-
VICE in SECTION 7B and be sure to perform it under specified
conditions. If fluid level is low, replenish specified fluid.
[Fluid change]
1) Perform steps 1) and 2) of above Fluid Level Inspection.
2) Change fluid. For its procedure, refer to ON-VEHICLE SER-
VICE in SECTION 7B.
CAUTION:
Use of specified fluid is absolutely necessary.
[Fluid cooler hose change]
Replace inlet and outlet hoses (1) of cooler hose and their clamps.
For replacement procedure, refer to ON-VEHICLE SERVICE in
SECTION 7B.
6
ENGINE GENERAL INFORMATION AND DIAGNOSIS (TBI FOR G10) 6-1
GENERAL INFORMATION6- 3 . . . . . . . . . . . . . .
Statement on Cleanliness and Care 6- 3. . . . .
General Information on Engine Service 6- 3. .
Precaution on Fuel System Service 6- 4. . . . .
Fuel Pressure Relief Procedure 6- 5. . . . . . . .
Fuel Leakage Check Procedure 6- 5. . . . . . . .
ENGINE DIAGNOSIS6- 6 . . . . . . . . . . . . . . . . . . . General Description 6- 6. . . . . . . . . . . . . . . . . . .
On-Board Diagnostic System 6- 6. . . . . . . . . .
Precaution in Diagnosing Trouble 6- 9. . . . . . .
Engine Diagnostic Flow Table 6-10. . . . . . . . . .
Customer Problem Inspection From 6-12. . . . .
Malfunction Indicator Lamp Check 6-13. . . . . .
Diagnostic Trouble Code Check 6-13. . . . . . . .
SECTION 6
ENGINE GENERAL INFORMATION
AND DIAGNOSIS
(TBI FOR G10)
WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System:
Service on and around the air bag system components or wiring must be performed only by an autho-
rized SUZUKI dealer. Refer to “Air Bag System Components and Wiring Location View” under “Gener-
al Description” in air bag system section in order to confirm whether you are performing service on
or near the air bag system components or wiring. Please observe all WARNINGS and “Service Precau-
tions” under “On-Vehicle Service” in air bag system section before performing service on or around
the air bag system components or wiring. Failure to follow WARNINGS could result in unintentional
activation of the system or could render the system inoperative. Either of these two conditions may
result in severe injury.
Technical service work must be started at least 90 seconds after the ignition switch is turned to the
“LOCK” position and the negative cable is disconnected from the battery. Otherwise, the system may
be activated by reserve energy in the Sensing and Diagnostic Module (SDM).
ENGINE GENERAL INFORMATION AND DIAGNOSIS (TBI for G10)6-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE GENERAL INFORMATION AND DIAGNOSIS (SFI for G13)6-1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE MECHANICAL (G10)6A-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE MECHANICAL (G13 1 cam 16 valves)6A1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE COOLING6B-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE FUEL6C-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE AND EMISSION CONTROL SYSTEM (TBI for G10)6E1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE AND EMISSION CONTROL SYSTEM (SFI for G13)6E2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION SYSTEM (G10 ENGINE)6F-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION SYSTEM (G13 ENGINE)6F1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CRANKING SYSTEM6G-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHARGING SYSTEM6H-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EXHAUST SYSTEM6K-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NOTE:
For the descriptions for vehicle without warm up three way catalytic converter (WUTWC), refer to Section
6 and 6E1 of the Service Manual mentioned in the FOREWORD of this manual.
CONTENTS
1. No.1 cylinder
2. No.2 cylinder
3. No.3 cylinder
123
ENGINE GENERAL INFORMATION AND DIAGNOSIS (TBI FOR G10) 6-3
GENERAL INFORMATION
STATEMENT ON CLEANLINESS AND CARE
An automobile engine is a combination of many machined, honed,
polished and lapped surfaces with tolerances that are measured in
the thousands of an millimeter (ten thousands of an inch).
Accordingly, when any internal engine parts are serviced, care and
cleanliness are important.
Throughout this section, it should be understood that proper clean-
ing and protection of machined surfaces and friction areas is part
of the repair procedure. This is considered standard shop practice
even if not specifically stated.
A liberal coating of engine oil should be applied to friction areas
during assembly to protect and lubricate the surfaces on initial op-
eration.
Whenever valve train components, pistons, piston rings, con-
necting rods, rod bearings, and crankshaft journal bearings are
removed for service, they should be retained in order.
At the time of installation, they should be installed in the same
locations and with the same mating surfaces as when removed.
Battery cables should be disconnected before any major work is
performed on the engine.
Failure to disconnect cables may result in damage to wire har-
ness or other electrical parts.
Throughout this manual, the four cylinders of the engine are iden-
tified by numbers; No.1 (1), No.2 (2) and No.3 (3) counted from
crankshaft pulley side to flywheel side.
GENERAL INFORMATION ON ENGINE SERVICE
THE FOLLOWING INFORMATION ON ENGINE SERVICE
SHOULD BE NOTED CAREFULLY, AS IT IS IMPORTANT IN PRE-
VENTING DAMAGE, AND IN CONTRIBUTING TO RELIABLE EN-
GINE PERFORMANCE.
When raising or supporting engine for any reason, do not use a
jack under oil pan. Due to small clearance between oil pan and
oil pump strainer, jacking against oil pan may cause it to be bent
against strainer resulting in damaged oil pick-up unit.
It should be kept in mind, while working on engine, that 12-volt
electrical system is capable of violent and damaging short cir-
cuits.
When performing any work where electrical terminals can be
grounded, ground cable of the battery should be disconnected at
battery.
Any time the air cleaner, throttle body or intake manifold is re-
moved, the intake opening should be covered. This will protect
against accidental entrance of foreign material which could follow
intake passage into cylinder and cause extensive damage when
engine is started.
HOSE CONNECTION
Clamp securely at a position 3 to
7mm (0.12–0.27 in.) from hose end. With short pipe, fit hose as far as it reaches pipe joint as
shown.
Hose
Pipe
ClampClamps securely at a position
3 to 7 mm (0.12–0.27 in.)
from hose end.
With following type pipe, fit hose as far as its peripheral
projection as shown.
Clamp securely at a position
3 to 7 mm (0.12–0.27 in.)
from hose end.
With bent pipe, fit hose as its bent part as shown or till pipe
is about 20 to 30 mm (0.79–1.18 in.) into the hose.
Clamp securely at a
position 3 to 7 mm
(0.12–0.27 in.) from hose
end.
With straight pipe, fit hose till pipe is, about 20 to 30 mm
(0.79–1.18 in.) into the hose.
Hose
20 to 30 mm
(0.79–1.18 in.)
Clamp
6-4 ENGINE GENERAL INFORMATION AND DIAGNOSIS (TBI FOR G10)
PRECAUTION ON FUEL SYSTEM SERVICE
Work must be done with no smoking, in a well-ventilated area and
away from any open flames.
As fuel feed line (between fuel pump and fuel delivery pipe) is still
under high fuel pressure even after engine was stopped, loosen-
ing or disconnecting fuel feed line directly may cause dangerous
spout of fuel to occur where loosened or disconnected.
Before loosening or disconnecting fuel feed line, make sure to re-
lease fuel pressure according to “FUEL PRESSURE RELIEF
PROCEDURE”. A small amount of fuel may be released after the
fuel line is disconnected. In order to reduce the chance of person-
al injury, cover the fitting to be disconnected with a shop cloth. Put
that cloth in an approved container when disconnection is com-
pleted.
Never run engine with fuel pump relay disconnected when engine
and exhaust system are hot.
Fuel or fuel vapor hose connection varies with each type of pipe.
When reconnecting fuel or fuel vapor hose, be sure to connect
and clamp each hose correctly referring to left figure Hose Con-
nection.
After connecting, make sure that it has no twist or kink.
When installing injector or fuel delivery pipe, lubricate its O-ring
with spindle oil or gasoline.
When connecting fuel pipe flare nut, first tighten flare nut by hand
and then tighten it to specified torque.
ENGINE GENERAL INFORMATION AND DIAGNOSIS (TBI FOR G10) 6-5
FUEL PRESSURE RELIEF PROCEDURE
CAUTION:
This work must not be done when engine is hot. If done so,
it may cause adverse effect to catalyst.
After making sure that engine is cold, release fuel pressure as fol-
lows.
1) Place transmission gear shift lever in “Neutral” (Shift selector le-
ver to “P” range for A / T model), set parking brake, and block
drive wheels.
2) Remove relay box cover.
3) Disconnect fuel pump relay (1) from relay box (2).
4) Remove fuel filler cap to release fuel vapor pressure in fuel tank
and then reinstall it.
5) Start engine and run it till it stops for lack of fuel. Repeat cranking
engine 2-3 times for about 3 seconds each time to dissipate fuel
pressure in lines. Fuel connections are now safe for servicing.
6) Upon completion of servicing, connect fuel pump relay to relay
box and install relay box cover.
FUEL LEAKAGE CHECK PROCEDURE
After performing any service on fuel system, check to make sure
that there are no fuel leakages as follows.
1) Turn ON ignition switch for 2 seconds (to operate fuel pump) and
then turn it OFF.
Repeat this (ON and OFF) 3 or 4 times and apply fuel pressure
to fuel line. (till fuel pressure is felt by hand placed on fuel feed
hose.)
2) In this state, check to see that there are no fuel leakages from
any part of fuel system.