oil temperature SUZUKI SX4 2006 1.G Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine 00-1 Precautions:
Precautions
Precautions
Precautions
Precautions for Vehicles Equipped with a
Supplemental Restraint (Air Bag) System
S6RW0D0000001
WARNING!
• The configuration of air bag system parts
are as shown in the figure. When it is
necessary to service (remove, reinstall and
inspect) these parts, be sure to follow
procedures described in Air Bag System
section. Failure to follow proper
procedures could result in possible air bag
system activation, personal injury, damage
to parts or air bag system being unable to
activate when necessary.
• If the air bag system and another vehicle
system both need repair, SUZUKI
recommends that the air bag system be
repaired first, to help avoid unintended air
bag system activation.
• Do not modify the steering wheel,
dashboard, or any other air bag system
components. Modifications can adversely
affect air bag system performance and
lead to injury.
• If the vehicle will be exposed to
temperatures over 93 °C (200 °F) (for
example, during a paint baking process),
remove the air bag system components
beforehand to avoid component damage
or unintended air bag system activation.

Diagnosis
• When troubleshooting air bag system, be sure to
follow “Diagnosis” in Air Bag System section.
Bypassing these procedures may result in extended
diagnostic time, incorrect diagnosis, and incorrect
parts replacement.
• Never use electrical test equipment other than that
specified.
WARNING!
Never attempt to measure the resistance of
the air bag (inflator) modules (driver,
passenger, side and curtain) and seat belt
pretensioners (driver and passenger). It is
very dangerous as the electric current from
the tester may deploy the air bag or activate
the pretensioner.

1. Air bag wire harness (in floor, main
and instrument panel harness)6. Driver air bag (inflator) module
2. Passenger air bag (inflator)
module7. Side air bag (inflator) module
(if equipped)
3. SDM 8. Curtain air bag (inflator)
module (if equipped)
4. Seat belt pretensioner 9. Forward sensor
5. Contact coil 10. Side sensor (if equipped)
23
7
8
4
10
10
4 7 9156
I5RW0A000001-01
I4RS0A000002-02

Downloaded from www.Manualslib.com manuals search engine 00-3 Precautions:
WARNING!
SDM
• For handling and storage of a SDM, select
a place where the ambient temperature
below 65 °C (150 °F), without high humidity
and away from electric noise.
• During service procedures, be very careful
when handling a Sensing and Diagnostic
Module (SDM). Never strike or jar the SDM.
• Never power up the air bag system when
the SDM is not rigidly attached to the
vehicle. All SDM and mounting bracket
fasteners must be carefully torqued and
the arrow must be pointing toward the
front of the vehicle to ensure proper
operation of the air bag system.
The SDM could be activated when powered
while not rigidly attached to the vehicle
which could cause deployment and result
in personal injury.

WARNING!
Driver and Passenger Seat Belt
Pretensioners
• For handling and storage of a live seat belt
pretensioner, select a place where the
ambient temperature below 65 °C (150 °F),
without high humidity and away from
electric noise.
• Never carry seat belt pretensioner by wire
or connector of pretensioner. When
placing a live seat belt pretensioner on the
workbench or some place like that, never
put something on seat belt pretensioner.
Otherwise, personal injury may result.
• Never dispose of live (inactivated) seat belt
pretensioners (drive and passenger). If
disposal is necessary, be sure to activate
them according to activation procedures
described in “Air Bag (Inflator) Module and
Seat Belt Pretensioner Disposal in Section
8B” before disposal.
• The seat belt pretensioner immediately
after activation is very hot. Wait for at least
half an hour to cool it off before
proceeding the work.
• With many service procedures, gloves and
safety glasses should be worn to prevent
any possible irritation of the skin or eyes.

• Even when the accident was light enough not to
cause air bags to activate, be sure to inspect system
parts and other related parts according to instructions
under “Repair and Inspection Required after Accident
in Section 8B”.
• When servicing parts other than air bag system, if
shocks may be applied to air bag system component
parts, remove those parts beforehand.
• When handling the air bag (inflator) modules (driver,
passenger, side and curtain), seat belt pretensioners
(driver and passenger), forward sensor, side sensors
or SDM, be careful not to drop it or apply an impact to
it. If an excessive impact was applied, never attempt
disassembly or repair but replace it with a new one.
• When grease, cleaning agent, oil, water, etc. has got
onto air bag (inflator) modules (driver, passenger, side
and curtain) or seat belt pretensioners (drive and
passenger), wipe off immediately with a dry cloth.
• Air bag wire harness is included in floor and
instrument panel wire harnesses. Air bag wire
harness branched off from floor and instrument panel
wire harnesses can be identified easily as it is covered
with a yellow protection tube and it has yellow
connectors. Be very careful when handling it.
• When an open in air bag wire harness, damaged wire
harness, connector or terminal is found, replace wire
harness, connectors and terminals as an assembly.
• Do not apply power to the air bag system unless all
components are connected or a diagnostic flow
requests it, as this will set a DTC.
• Never use air bag system component parts from
another vehicle.
• When using electric welding, be sure to disconnect all
air bag (inflator) module connectors and pretensioner
connectors from air bag wire harness respectively.
• Never expose air bag system component parts
directly to hot air (drying or baking the vehicle after
painting) or flames.
• WARNING / CAUTION labels are attached on each
part of air bag system components. Be sure to follow
the instructions.
• After vehicle is completely repaired, perform “Air Bag
Diagnostic System Check in Section 8B”.
General PrecautionsS6RW0D0000002
The WARNING and CAUTION describe some general
precautions that you should observe when servicing a
vehicle. These general precautions apply to many of the
service procedures, and they will not necessarily be
repeated with each procedure to which they apply.

Downloaded from www.Manualslib.com manuals search engine 0B-5 Maintenance and Lubrication:
6) Replenish oil until oil level is brought to FULL level
mark on dipstick (oil pan and oil filter capacity). The
filler inlet is at the top of the cylinder head cover. It is
recommended to use engine oil of SG, SH, SJ, SL or
SM grade. Select the appropriate oil viscosity
according to the proper engine oil viscosity chart [A].
NOTE
Engine oil capacity is specified as the
following.
However, note that the amount of oil required
when actually changing oil may somewhat
differ from the data depending on various
conditions (temperature, viscosity, etc.).

Engine oil specification
Oil pan capacity: About 3.7 liters (7.8 / 6.5 US /
lmp pt.)
Oil filter capacity: About 0.2 liter (0.4 / 0.3 US /
lmp pt.)
Others: About 0.3 liter (0.6 / 0.5 US / lmp pt.)
Total: About 4.2 liters (8.9 / 7.4 US / lmp pt.)
7) Check oil filter and drain plug for oil leakage.
8) Start engine and run it for 3 minutes. Stop it and wait
another 5 minutes before checking oil level. Add oil,
as necessary, to bring oil level to FULL level mark (1)
on dipstick.
Engine Coolant ChangeS6RW0D0206005
Change engine coolant with new one referring to
“Cooling System Flush and Refill in Section 1F”.
Exhaust System InspectionS6RW0D0206006
WARNING!
To avoid danger of being burned, do not
touch exhaust system when it is still hot.
Any service on exhaust system should be
performed when it is cool.

When carrying out periodic maintenance, or the vehicle
is raised for other service, check exhaust system as
follows:
• Check rubber mountings for damage, deterioration,
and out of position.
• Check exhaust system for leakage, loose
connections, dents and damages.
If bolts or nuts are loose, tighten them to specification.
• 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 the vehicle.
• Make sure that exhaust system components have
enough clearance from the underbody to avoid
overheating and possible damage to floor carpet.
• Any defects should be fixed at once.
Spark Plug ReplacementS6RW0D0206007
Replace spark plugs with new ones referring to “Spark
Plug Removal and Installation in Section 1H”.
2. Low level mark (hole)
C
Fo o-30
-22-20
-4-10
14 32 50 68 86 104010203040
5W-30
20W-40, 20W-50
10W-30
15W-40, 15W-50
10W-40, 10W-50
[A]
I4RS0A020002-01
IYSQ01020012-01
I4RS0A020003-01

Downloaded from www.Manualslib.com manuals search engine Maintenance and Lubrication: 0B-12
Steering
• Check to ensure that steering wheel is free from
instability, or abnormally heavy feeling.
• Check that the vehicle does not wander or pull to one
side.
Engine
• Check that engine responds readily at all speeds.
• Check that engine is free from abnormal noise and
abnormal vibration.
Body, Wheels and Power Transmitting System
Check that body, wheels and power transmitting system
are free from abnormal noise and abnormal vibration or
any other abnormal condition.Meters and Gauge
Check that speedometer, odometer, fuel meter,
temperature gauge, etc. are operating accurately.
Lights
Check that all lights operate properly.
Windshield Defroster
Periodically check that air comes out from defroster
outlet when operating heater or air conditioning.
Set mode control lever to defroster position and fan
switch lever to highest position for this check.
Specifications
Tightening Torque SpecificationsS6RW0D0207001
Reference:
For the tightening torque of fastener not specified in this section, refer to “Fasteners Information in Section 0A”.
Special Tools and Equipment
Recommended Fluids and LubricantsS6RW0D0208001
Special ToolS6RW0D0208002
Fastening partTightening torque
Note
N⋅mkgf-mlb-ft
Engine oil drain plug 35 3.5 25.5)
Oil filter 14 1.4 10.5 for reference )
Engine oil SG, SH, SJ, SL or SM grade (Refer to “Engine Oil and Filter Change” for engine
oil viscosity.)
Engine coolant
(Ethylene glycol base coolant)“Antifreeze/Anticorrosion coolant”
Brake fluid Refer to reservoir cap of brake master cylinder.
Manual transaxle oil Refer to “Manual Transaxle Oil Change in Section 5B”.
Automatic transaxle fluid Refer to “A/T Fluid Change in Section 5A”.
Transfer oil (4WD) Refer to “Transfer Oil Change in Section 3C”.
Rear differential (4WD) Refer to “Rear Differential Oil Change in Section 3B”.
Door hinges Engine oil or water resistance chassis grease
Hood latch assembly Engine oil or water resistance chassis grease
Key lock cylinder Spray lubricant
09915–47331
Oil filter wrench
)

Downloaded from www.Manualslib.com manuals search engine Table of Contents 1-iii
EGR Valve Removal and Installation (If
Equipped).......................................................... 1B-4
EGR Valve Inspection (If Equipped) ................... 1B-4
PCV Hose Inspection .......................................... 1B-5
PCV Valve Inspection ......................................... 1B-5
Special Tools and Equipment ............................. 1B-5
Special Tool ........................................................ 1B-5
Engine Electrical Devices ....................... 1C-1
Repair Instructions .............................................. 1C-1
Engine Control Module (ECM) Removal and
Installation ......................................................... 1C-1
Manifold Absolute Pressure (MAP) Sensor
Inspection (If Equipped) .................................... 1C-2
Electric Throttle Body Assembly On-Vehicle
Inspection.......................................................... 1C-2
Electric Throttle Body System Calibration ........... 1C-5
Accelerator Pedal Position (APP) Sensor
Assembly On-Vehicle Inspection ...................... 1C-5
Accelerator Pedal Position (APP) Sensor
Assembly Removal and Installation .................. 1C-5
Accelerator Pedal Position (APP) Sensor
Assembly Inspection ......................................... 1C-6
Engine Coolant Temperature (ECT) Sensor
Removal and Installation................................... 1C-7
Engine Coolant Temperature (ECT) Sensor
Inspection.......................................................... 1C-7
Heated Oxygen Sensor (HO2S-1 and HO2S-
2) Heater On-Vehicle Inspection (If
Equipped).......................................................... 1C-8
Heated Oxygen Sensor (HO2S-1 and HO2S-
2) Removal and Installation (If Equipped) ......... 1C-8
Camshaft Position (CMP) Sensor Removal
and Installation .................................................. 1C-9
Camshaft Position (CMP) Sensor Inspection ...... 1C-9
Crankshaft Position (CKP) Sensor Removal
and Installation ................................................ 1C-10
Crankshaft Position (CKP) Sensor Inspection .. 1C-11
Knock Sensor Removal and Installation ........... 1C-11
Main Relay, Fuel Pump Relay, Starting Motor
Control Relay, Throttle Actuator Control
Relay and Radiator Cooling Fan Relay
Inspection........................................................ 1C-12
Mass Air Flow (MAF) and Intake Air
Temperature (IAT) Sensor On-Vehicle
Inspection........................................................ 1C-12
Mass Air Flow (MAF) and Intake Air
Temperature (IAT) Sensor Removal and
Installation ....................................................... 1C-13
Intake Air Temperature (IAT) Sensor
Inspection........................................................ 1C-13
Specifications..................................................... 1C-14
Tightening Torque Specifications ...................... 1C-14
Engine Mechanical .................................. 1D-1
General Description ............................................. 1D-1
Engine Construction Description ......................... 1D-1
Camshaft Position Control (VVT Variable
Valve Timing) System Description .................... 1D-3Diagnostic Information and Procedures ............1D-5
Compression Check ............................................1D-5
Engine Vacuum Check........................................1D-6
Valve Lash (Clearance) Inspection .....................1D-7
Repair Instructions ............................................1D-10
Air Intake System Components.........................1D-10
Air Cleaner Filter Removal and Installation .......1D-10
Air Cleaner Filter Inspection and Cleaning........1D-10
Air Cleaner Assembly Removal and
Installation .......................................................1D-11
Cylinder Head Cover Removal and
Installation .......................................................1D-11
Throttle Body and Intake Manifold
Components ....................................................1D-13
Throttle Body On-Vehicle Inspection.................1D-14
Electric Throttle Body Assembly Removal and
Installation .......................................................1D-14
Throttle Body Cleaning......................................1D-14
Intake Manifold Removal and Installation .........1D-15
Engine Mountings Components ........................1D-16
Engine Assembly Removal and Installation ......1D-17
Timing Chain Cover Components .....................1D-22
Timing Chain Cover Removal and Installation ..1D-23
Timing Chain Cover Inspection .........................1D-25
Oil Control Valve Removal and Installation
(For Engine with VVT) .....................................1D-26
Oil Control Valve Inspection (For Engine with
VVT) ................................................................1D-26
Timing Chain and Chain Tensioner
Components ....................................................1D-27
Timing Chain and Chain Tensioner Removal
and Installation ................................................1D-27
Timing Chain and Chain Tensioner Inspection ..1D-31
Camshaft, Tappet and Shim Components ........1D-32
Camshaft, Tappet and Shim Removal and
Installation .......................................................1D-33
Camshaft, Tappet and Shim Inspection ............1D-36
Valves and Cylinder Head Components ...........1D-39
Valves and Cylinder Head Removal and
Installation .......................................................1D-40
Valves and Cylinder Head Disassembly and
Assembly.........................................................1D-42
Valves and Valve Guides Inspection.................1D-45
Cylinder Head Inspection ..................................1D-47
Valve Spring Inspection ....................................1D-48
Pistons, Piston Rings, Connecting Rods and
Cylinders Components ....................................1D-49
Pistons, Piston Rings, Connecting Rods and
Cylinders Removal and Installation .................1D-49
Pistons, Piston Rings, Connecting Rods and
Cylinders Disassembly and Assembly ............1D-51
Cylinders, Pistons and Piston Rings
Inspection ........................................................1D-52
Piston Pins and Connecting Rods Inspection ...1D-54
Crank Pin and Connecting Rod Bearings
Inspection ........................................................1D-55
Main Bearings, Crankshaft and Cylinder
Block Components ..........................................1D-59
Main Bearings, Crankshaft and Cylinder
Block Removal and Installation .......................1D-60

Downloaded from www.Manualslib.com manuals search engine 1A-10 Engine General Information and Diagnosis:
ECM Transmission Data
ECM Reception Data
BCM TCMCombination
Meter
DATA ECM Transmit
Brake pedal switch signal
Vehicle speed signal
Engine speed signal
Engine torque signal
Accelerator pedal position signal
4WD Control
ModuleKeyless Start
Control
Module
A/C refrigerant pressure
signal
A/C compressor clutch signal
Engine type signal
Immobilizer indicator light control
signal
MIL control signal
Engine coolant temperature signal
Fuel level signal
Fuel consumption signal
Throttle position signal
Driving cycle active
Warm up cycle active
Odometer signal
I6RW0D110003-02
DATA ECM Receive
ABS control
module
Transmission oil temperature signal
Transmission warning light signal Vehicle speed pulse signal A/T selector lever position signal
Transmission actual gear position signal
Wheel speed signal (front right)
Wheel speed signal (front left)
ABS indication signal
A/C switch ON signal
Electric load signalBCM
4WD mode status
Torque request signalTCM
MIL control signal4WD control
module
I6RW0D110013-02

Downloaded from www.Manualslib.com manuals search engine 1A-32 Engine General Information and Diagnosis:
DTC TableS6RW0D1104005
NOTE
• There are two types of OBD system depending on the vehicle specification.
For identification, refer to “Precaution on On-Board Diagnostic (OBD) System”.
• For non-Euro-OBD model, some of DTC No. with delta (U) mark in the following table can not be
detected by ECM depending on vehicle specification.
• With the CAN communication generic scan tool, only star (*) marked DTC No. in the following table
can be read.
• 1 driving cycle: MIL lights up when DTC is detected during 1 driving cycle.
• 2 driving cycles: MIL lights up when the same DTC is detected also in the next driving cycle after
DTC is detected and stored temporarily in the first driving cycle.
• *2 driving cycles:
MIL blinks or lights up. Refer to “DTC P0300 / P0301 / P0302 / P0303 / P0304: Random Misfire
Detected / Cylinder 1 / Cylinder 2 / Cylinder 3 / Cylinder 4 Misfire Detected” for details.

DTC No. Detecting itemDetecting condition
(DTC will set when detecting:)MIL
) *P0010Camshaft position actuator circuit
(for engine with VVT system)Oil control valve circuit open or short.1 driving
cycle
) *P0011Camshaft position – timing over-
advanced or system performance
(for engine with VVT system)Actual value of advanced valve timing does not reach
target value, or valve timing is advanced although ECM
command is most retarding.2 driving
cycles
) *P0012Camshaft position – timing over-
retarded
(for engine with VVT system)2 driving
cycles
) *P0031HO2S heater control circuit low
(Sensor-1)Heater current is less than specification while heater ON.2 driving
cycles
) *P0032HO2S heater control circuit high
(Sensor-1)Heater current is more than specification while heater ON.2 driving
cycles
)
U*P0037HO2S heater control circuit low
(Sensor-2)Heater current is less than specification while heater ON.2 driving
cycles
)
U*P0038HO2S heater control circuit high
(Sensor-2)Heater current is more than specification while heater ON.2 driving
cycles
)
U*P0101Mass air flow circuit range/
performanceMAF sensor volume is more than specification or less
than specification.2 driving
cycles
) *P0102 Mass air flow circuit low input Output voltage of MAF sensor is less than specification.1 driving
cycle
) *P0103 Mass air flow circuit high input Output voltage of MAF sensor is more than specification.1 driving
cycle
)
U*P0106Manifold absolute pressure circuit
range/performanceDifference between Max. manifold absolute pressure
value and Min. manifold pressure value is less than
specification or difference between barometric pressure
value and manifold pressure value is less than
specification2 driving
cycles
)
U*P0107Manifold absolute pressure circuit
low inputOutput voltage of MAP sensor is less than specification.
1 driving
cycle
)
U*P0108Manifold absolute pressure circuit
high inputOutput voltage of MAP sensor is more than specification.1 driving
cycle
)
U* P 0 111Intake air temperature sensor circuit
range/performanceVariation of intake air temperature from engine start is
less than specification.2 driving
cycles
) *P0112Intake air temperature sensor circuit
lowCircuit voltage of IAT sensor is less than specification.1 driving
cycle
) *P0113Intake air temperature sensor circuit
highCircuit voltage of IAT sensor is more than specification.1 driving
cycle
)
U*P0116Engine coolant temperature circuit
range/performanceEngine coolant temperature is less than specified
temperature for specified time from engine start.2 driving
cycles

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-43
THROTTLE MOTOR RELAY (ON/OFF)
ON: Throttle actuator (motor) control activated by ECM.
OF: Throttle actuator (motor) control stopped by ECM.
VEHICLE SPEED (km/h, mph)
It is computed based on pulse signals from front wheel
speed sensor (RH, LH) (for M/T model) or output shaft
speed sensor (VSS) (for A/T model).INJ PULSE WIDTH (FUEL INJECTION PULSE WIDTH,
msec.)
This parameter indicates time of the injector drive (valve
opening) pulse which is output from ECM (but injector
drive time of NO.1 cylinder for multiport fuel injection).
Visual InspectionS6RW0D1104008
Visually check the following parts and systems.
Engine Basic InspectionS6RW0D1104009
This check is very important for troubleshooting when ECM has detected no DTC and no abnormality has been found
in “Visual Inspection”.
Follow the flow carefully.Inspection item Reference section
• Engine oil – level, leakage “Engine Oil and Filter Change in Section 0B”
• Engine coolant – level, leakage “Coolant Level Check in Section 1F”
• Fuel – level, leakage“Fuel Lines and Connections Inspection in
Section 0B”
• Air cleaner element – dirt, clogging “Air Cleaner Filter Inspection in Section 0B”
• Battery – fluid level, corrosion of terminal“Battery Dismounting and Remounting in
Section 1J”
• Water pump belt – tension damage“Accessory Drive Belt Inspection in Section
0B”
• Throttle valve – operating sound“Electric Throttle Body Assembly On-Vehicle
Inspection in Section 1C”
• Vacuum hoses of air intake system – disconnection, looseness,
deterioration, bend“Vacuum Hose Inspection in Section 1B”
• Connectors of electric wire harness – disconnection, friction
• Fuses – burning
• Parts – installation, bolt – looseness
• Parts – deformation
• Other parts that can be checked visually
Also check the following items at engine start, if possible
• Malfunction indicator lamp – Operation “Malfunction Indicator Lamp (MIL) Check”
• Charge warning lamp – Operation “Generator Symptom Diagnosis in Section 1J”
• Engine oil pressure warning lamp – Operation “Oil Pressure Switch Inspection in Section 9C”
• Engine coolant temp. meter – Operation“Engine Coolant Temperature (ECT) Sensor
Inspection in Section 1C”
• Fuel level meter – Operation “Fuel Level Sensor Inspection in Section 9C”
• Tachometer – Operation
• Abnormal air being inhaled from air intake system
• Exhaust system – leakage of exhaust gas, noise
• Other parts that can be checked visually
Step Action Yes No
1Was “Engine and Emission Control System Check”
performed?Go to Step 2. Go to “Engine and
Emission Control
System Check”.
2Check battery voltage
Is it 11 V or more?Go to Step 3. Charge or replace
battery.
3Is vehicle equipped with keyless start control system?Go to Step 4. Go to Step 5.

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-45
Engine Symptom DiagnosisS6RW0D1104010
Perform troubleshooting referring to the followings when ECM has detected no DTC and no abnormality has been
found in “Visual Inspection” and “Engine Basic Inspection”.
Condition Possible cause Correction / Reference Item
Hard starting (Engine
cranks OK)Faulty spark plug“Spark Plug Inspection in Section 1H”
Leaky high-tension cord“High-Tension Cord Inspection in Section 1H”
Loose connection or disconnection of
high-tension cord(s) or lead wire(s)“High-Tension Cord Removal and Installation
in Section 1H”
Faulty ignition coil“Ignition Coil Assembly (Including Ignitor)
Inspection in Section 1H”
Dirty or clogged fuel hose or pipe“Fuel Pressure Check”
Malfunctioning fuel pump“Fuel Pressure Check”
Air drawn in through intake manifold
gasket or throttle body gasket
Faulty electric throttle body assembly“Electric Throttle Body Assembly On-Vehicle
Inspection in Section 1C”
Faulty APP sensor assembly“Accelerator Pedal Position (APP) Sensor
Assembly Inspection in Section 1C”
Faulty ECT sensor or MAF sensor“Engine Coolant Temperature (ECT) Sensor
Inspection in Section 1C” or “Intake Air
Temperature (IAT) Sensor Inspection in
Section 1C”
Faulty ECM
Low compression“Compression Check in Section 1D”
Poor spark plug tightening or faulty
gasket“Spark Plug Removal and Installation in
Section 1H”
Compression leak from valve seat“Valves and Valve Guides Inspection in
Section 1D”
Sticky valve stem“Valves and Valve Guides Inspection in
Section 1D”
Weak or damaged valve springs“Valve Spring Inspection in Section 1D”
Compression leak at cylinder head
gasket“Cylinder Head Inspection in Section 1D”
Sticking or damaged piston ring“Cylinders, Pistons and Piston Rings
Inspection in Section 1D”
Worn piston, ring or cylinder“Cylinders, Pistons and Piston Rings
Inspection in Section 1D”
Malfunctioning PCV valve“PCV Valve Inspection in Section 1B”
Camshaft position control (VVT) system
out of order (for engine with VVT
system)“Oil Control Valve Inspection (For Engine with
VVT) in Section 1D”
Faulty EGR system“EGR System Inspection (If Equipped) in
Section 1B”
Low oil pressureImproper oil viscosity“Engine Oil and Filter Change in Section 0B”
Malfunctioning oil pressure switch“Oil Pressure Switch Inspection in Section 9C”
Clogged oil strainer“Oil Pan and Oil Pump Strainer Cleaning in
Section 1E”
Functional deterioration of oil pump“Oil Pump Inspection in Section 1E”
Worn oil pump relief valve“Oil Pump Inspection in Section 1E”
Excessive clearance in various sliding
parts

Downloaded from www.Manualslib.com manuals search engine Engine General Information and Diagnosis: 1A-47
Engine overheatingInoperative thermostat“Thermostat Inspection in Section 1F”
Poor water pump performance“Water Pump Inspection in Section 1F”
Clogged or leaky radiator“Radiator On-Vehicle Inspection and Cleaning
in Section 1F”
Improper engine oil grade“Engine Oil and Filter Change in Section 0B”
Clogged oil filter or oil strainer“Oil Pressure Check in Section 1E”
Poor oil pump performance“Oil Pressure Check in Section 1E”
Faulty radiator cooling fan control
system“Radiator Cooling Fan Control System Check”
Dragging brakesCondition “Dragging brakes” in “Brakes
Symptom Diagnosis in Section 4A”
Slipping clutch (for M/T model)Condition “Slipping clutch” in “Clutch System
Symptom Diagnosis in Section 5C” for M/T
model
Blown cylinder head gasket“Cylinder Head Inspection in Section 1D”
Air mixed in cooling system
Poor gasoline mileageLeaks or loose connection of high-
tension cord“High-Tension Cord Removal and Installation
in Section 1H”
Faulty spark plug (improper gap, heavy
deposits and burned electrodes, etc.)“Spark Plug Inspection in Section 1H”
Malfunctioning EGR valve“EGR Valve Inspection (If Equipped) in Section
1B”
High idle speedCondition “Improper engine idling or engine
fails to idle”
Poor performance of ECT sensor, MAF
sensor“Engine Coolant Temperature (ECT) Sensor
Inspection in Section 1C”, or “Intake Air
Temperature (IAT) Sensor Inspection in
Section 1C”
Faulty electric throttle body assembly“Electric Throttle Body Assembly On-Vehicle
Inspection in Section 1C”
Faulty APP sensor assembly“Accelerator Pedal Position (APP) Sensor
Assembly Inspection in Section 1C”
Faulty fuel injector(s)“Fuel Injector Circuit Check”
Faulty ECM
Low compression“Compression Check in Section 1D”
Poor valve seating“Valves and Valve Guides Inspection in
Section 1D”
Dragging brakesCondition “Dragging brakes” in “Brakes
Symptom Diagnosis in Section 4A”
Slipping clutch (for M/T model)Condition “Slipping clutch” in “Clutch System
Symptom Diagnosis in Section 5C” for M/T
model
Thermostat out of order“Thermostat Inspection in Section 1F”
Improper tire pressure“Tires Description in Section 2D”
Camshaft position control (VVT) system
out of order (for engine with VVT
system)“Oil Control Valve Inspection (For Engine with
VVT) in Section 1D”
Excessive engine oil
consumption – Oil
leakageBlown cylinder head gasket“Cylinder Head Inspection in Section 1D”
Leaky camshaft oil seals“Camshaft, Tappet and Shim Inspection in
Section 1D” Condition Possible cause Correction / Reference Item