2006 SUZUKI SX4 oil temperature

Downloaded from www.Manualslib.com manuals search engine 1A-192 Engine General Information and Diagnosis:
Resistance Check
1) Remove ECM from its bracket referring to “Engine Control Module (ECM) Removal and Installation in Section 1C”.
CAUTION!
Never touch terminals of ECM itself or connect voltmeter or ohmmeter (2).

2) Connect special tool to ECM connectors (1) securely.
NOTE
Do not connect the other connector of special tool to ECM.

Special tool
(A): 09933–06320
3) Check resistance between each pair of terminals of special tool connectors (1) as listed in the following table.
CAUTION!
• Be sure to connect ohmmeter probe from wire harness side of coupler.
• Be sure to turn OFF ignition switch for this check.
• Resistance in the following table represents that measured when parts temperature is 20 °C (68 °F).

1
(A)
2
3
I7RW01110032-02
Terminals Circuit Standard resistance Condition
C01-47 to E01-29 Heater of HO2S-2 4 – 15 Ω—
E01-46 to E01-1/16 Radiator cooling fan relay No.1 160 – 240 Ω—
E01-60 to E01-29 Main relay 160 – 240 ΩBattery disconnected and
ignition switch turned ON
E01-15 to E01-29 Fuel pump relay 160 – 240 Ω—
C01-16 to E01-1/16No.3 fuel injector
10.8 – 18.2 Ω—
C01-17 to E01-1/16No.4 fuel injector
C01-4 to E01-1/16EGR valve (stepping motor No.1 coil) (if
equipped)20 – 31 Ω—
C01-29 to E01-1/16 EVAP canister purge valve 28 – 35 Ω—
C01-2 to E01-1/16 No.2 fuel injector 10.8 – 18.2 Ω—
C01-3 to E01-1/16EGR valve (stepping motor No.2 coil) (if
equipped)
20 – 31 Ω— C01-18 to E01-1/16EGR valve (stepping motor No.4 coil) (if
equipped)
C01-19 to E01-1/16EGR valve (stepping motor No.3 coil) (if
equipped)
C01-46 to E01-29 Heater of HO2S-1 2 – 11 Ω—
C01-1 to E01-1/16 No.1 fuel injector 10.8 – 18.2 Ω—
E01-29 to E01-47 A/C compressor relay (if equipped with A/C) 160 – 240 Ω—
E01-58 to E01-1/16A/C condenser cooling fan relay
(if equipped with A/C)160 – 240 Ω—
C01-60 to C01-59 Oil control valve (for engine with VVT system) 6 – 15 Ω—
E01-45 to E01-1/16 Throttle actuator control relay 160 – 240 Ω—

Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-3
Camshaft Position Control (VVT Variable Valve Timing) System DescriptionS6RW0D1401002
System Description
The VVT system is an electronic control system which continuously vary and optimize the intake valve timing in
response to the engine operating condition.
The optimized intake valve timing produce such an air intake with high efficiency that both the higher power generation
and lower fuel consumption can be attained in the whole engine speed range from low to high. In the area of the
average engine load, low emission of nitrogen oxides (NOx) and high fuel efficiency can also be attained by making
the valve opening overlap between the intake and exhaust valves longer.
For the brief of the system operation, the intake valve timing is varied by the cam timing sprocket (1) which varies the
rotational phase between the intake camshaft (3) and sprocket. The rotor (2) in the cam timing sprocket is actuated by
switching or adjusting the hydraulic pressure applied to the chambers for the timing advancing (7) and/or retarding (6).
To switch or adjust the hydraulic pressure appropriately, ECM operates the oil control valve (12) with detecting the
engine speed, intake air value, throttle opening, engine coolant temperature and camshaft position (angle).
1
4
5
10
8
9
2
7
6
12
11
3
60˚ (variable angle)
Most retarded timing Most advanced timing
Exhaust valveIntake valve
Crank angle
Overlap of valves
Valve lift
I5RW0C140002-01
4. Oil passage to chamber for timing retarding 8. Oil filter 10. Oil pan
5. Oil passage to chamber for timing advancing 9. Oil pump 11. Control signal from ECM

Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-5
Targeted Timing Varying Operation
Diagnostic Information and Procedures
Compression CheckS6RW0D1404001
Check compression pressure on all 4 cylinders as
follows:
1) Warm up engine to normal operating temperature.
2) Stop engine after warming up.
NOTE
After warming up engine, place transmission
gear shift lever in “Neutral” (shift selector
lever to “P” range for A/T model), and set
parking brake and block drive wheels.

3) Remove air cleaner assembly with air suction hose
referring to “Air Cleaner Assembly Removal and
Installation”.
4) Remove cylinder head upper cover.
5) Remove ignition coil assemblies and all spark plugs
referring to “Spark Plug Removal and Installation in
Section 1H”.
6) Disconnect fuel injector wires at the coupler.7) Install special tools (Compression gauge) into spark
plug hole.
Special tool
(A): 09915–64512
(B): 09915–64530
(C): 09915–67010 Driving condition Valve timing Target of control Effect
Engine running at idle
speedMost retardedTo shorten the valve opening overlap in
order to prevent the exhaust gas
counterflow to intake manifold.Stabilization of the engine
rotation at idle speed.
Average engine load
rangeTo the advanced
sideTo lengthen the valve opening overlap
in order to enhance the internal
exhaust gas recirculation and reduce
the pumping loss.Improvement of the fuel
efficiency.
Lowering of the exhaust
emission.
Light engine load
rangeTo the retarded sideTo shorten the valve opening overlap in
order to prevent the exhaust gas
counterflow to intake manifold.Keeping of the engine stability.
Low or average
engine speed range
with heavy engine
loadTo the advanced
sideTo advance the closing timing of the
intake valve in order to improve the
volumetric efficiency.Improvement of generating the
engine torque at low and
average engine speed.
High engine speed
range with heavy
engine loadTo the retarded sideTo retard the closing timing of the
intake valve in order to improve the
volumetric efficiency.Improvement of generating the
engine power.
Low engine coolant
temperatureMost retardedTo shorten the valve opening overlap in
order to prevent the exhaust gas
counterflow to intake manifold and
reduce the fuel increasing.
To slow the fast idle speed of the
engine as a result of stabilizing the
engine idling.Stabilization of the fast idling of
the engine.
Improvement of the fuel
efficiency.
At engine starting and
stoppingMost retardedTo shorten the valve opening overlap in
order to prevent the exhaust gas
counterflow to intake manifold.Improvement of start ability.
(A)
(C)
(B)
I3RH0B140009-01

Downloaded from www.Manualslib.com manuals search engine 1D-6 Engine Mechanical:
8) Disengage clutch (1) (to lighten starting load on
engine) for M/T vehicle, and depress accelerator
pedal (2) all the way to make throttle fully open.
9) Crank engine with fully charged battery, and read the
highest pressure on compression gauge.
NOTE
• For measuring compression pressure,
crank engine at least 250 r/min. by using
fully charged battery.
• If measured compression pressure is
lower than limit value, check installation
condition of special tool. If it is properly
installed, possibility is compression
pressure leakage from where piston ring
and valve contact.

Compression pressure
Standard: 1400 kPa (14.0 kgf/cm2, 199.0 psi)
Limit: 1100 kPa (11.0 kgf/cm2, 156.0 psi)
Max. difference between any two cylinders: 100
kPa (1.0 kgf/cm
2, 14.2 psi)
10) Carry out Steps 7) through 9) on each cylinder to
obtain 4 readings.
11) After checking, install spark plugs and ignition coil
assemblies with high-tension cord referring to “Spark
Plug Removal and Installation in Section 1H”.
12) Connect ignition coil couplers.
13) Connect fuel injector wires at the coupler.
14) Install cylinder head upper cover.
15) Install air cleaner assembly with air section hose
referring to “Air Cleaner Assembly Removal and
Installation”.
Engine Vacuum CheckS6RW0D1404002
The engine vacuum that develops in the intake line is a
good indicator of the condition of the engine. The
vacuum checking procedure is as follows:
1) Warm up engine to normal operating temperature.
NOTE
After warming up engine, place transmission
gear shift lever in “Neutral” (shift selector
lever to “P” range for A/T model), and set
parking brake and block drive wheels.

2) Stop engine and turn off the all electric switches.
3) Remove air cleaner assembly with air suction hose
referring to “Air Cleaner Assembly Removal and
Installation”.
4) Remove PCV hose (1) from PCV valve (2).
5) Connect special tool (Vacuum gauge) to PCV hose
(1).
Special tool
(A): 09915–67311
6) Blind PCV valve (2) using tape (3) or the like.I2RH0B140005-01
12
I5RW0C140038-01
(A)
1
2
3
I5RW0A140003-02

Downloaded from www.Manualslib.com manuals search engine Engine Mechanical: 1D-43
Assembly
1) Before installing valve guide into cylinder head, ream
guide hole with special tool (10.5 mm reamer) so as
to remove burrs and make it truly round.
Special tool
(A): 09916–34542
(B): 09916–37320
2) Install valve guide to cylinder head.
Heat cylinder head uniformly at a temperature of 80
to 100 °C (176 to 212 °F) so that head will not be
distorted, and drive new valve guide into hole with
special tools.
Drive in new valve guide until special tool (Valve
guide installer) contacts cylinder head.
After installing, make sure that valve guide protrudes
by specified dimension “a” from cylinder head.
Special tool
(A): 09916–58210
(B): 09916–56011
NOTE
• Never reuse valve guide once
disassembled. Make sure to install new
valve guide (Oversize).
• Intake and exhaust valve guides are
identical.

Valve guide protrusion (In and Ex)
“a”: 11.1 – 11.5 mm (0.437 – 0.452 in.)3) Ream valve guide bore with special tool (5.5 mm
reamer). After reaming, clean bore.
Special tool
(A): 09916–34542
(B): 09916–34550
4) Install valve spring seat to cylinder head.
5) Install new valve stem seal (1) to valve guide.
After applying engine oil to seal and spindle of
special tool (Valve guide installer handle), fit oil seal
to spindle, and then install seal to valve guide by
pushing special tool by hand.
After installing, check to be sure that seal is properly
fixed to valve guide.
Special tool
(A): 09917–98221
(B): 09916–58210
NOTE
• Do not reuse seal once disassembled. Be
sure to install new seal.
• When installing, never tap or hit special
tool with a hammer or else. Install seal to
guide only by pushing special tool by
hand. Tapping or hitting special tool may
cause damage to seal.

I2RH0B140096-01
I2RH0B140097-01
I2RH0B140096-01
I2RH0B140098-01

Downloaded from www.Manualslib.com manuals search engine 1E-2 Engine Lubrication System:
Diagnostic Information and Procedures
Oil Pressure CheckS6RW0D1504001
WARNING!
To avoid the danger of being burned, do not
touch the exhaust system when the system is
hot. Any service on the exhaust system
should be performed when the system is
cool.

NOTE
Prior to checking oil pressure, check the
following.
• Oil level in oil pan
If oil level is low, add oil up to full level
mark (hole) (1) on oil level gauge referring
to “Engine Oil and Filter Change in Section
0B”.
• Oil quality
If oil is discolored or deteriorated, change
it. For particular oil to be used, refer to
“Engine Oil and Filter Change in Section
0B”.
• Oil leaks
If leak is found, repair it.

1) Disconnect oil pressure switch coupler (1).
2) Remove oil pressure switch (2) from cylinder block.3) Install special tools (oil pressure gauge) to vacated
threaded hole of oil pressure switch.
Special tool
(A): 09915–77310
(B): 09915–78211
4) Start engine and warm engine up to normal
operating temperature.
NOTE
Be sure to shift transaxle gear shift lever in
“Neutral”, set parking brake and block drive
wheels.

5) After warming up, raise engine speed to 4,000 r/min.
and measure oil pressure.
Oil pressure specification
More than 270 kPa (2.7 kgf/cm2, 39.8 psi) at 4,000
r/min. (rpm)
6) After checking oil pressure, stop engine and remove
oil pressure gauge and attachment.
7) Before reinstalling oil pressure switch (2), be sure to
wrap its screw threads with sealing tape (1) and
tighten switch to specified torque.
NOTE
If sealing tape edge is bulged out from screw
threads of switch, cut it off.

Tightening torque
Oil pressure switch (a): 13 N·m (1.3 kgf-m, 9.5
lb-ft)
2. Low level mark (hole)
I2RH0B150002-01
I2RH0B150003-01
I2RH0B150004-01
I2RH0B150005-01

Downloaded from www.Manualslib.com manuals search engine 1F-1 Engine Cooling System:
Engine
Engine Cooling System
General Description
Cooling System DescriptionS6RW0D1601001
The cooling system consists of the radiator cap, radiator,
coolant reservoir, hoses, water pump, cooling fan and
thermostat. The radiator is of tube-and-fin type.
Coolant DescriptionS6RW0D1601002
WARNING!
• Do not remove radiator cap to check
engine coolant level; check coolant
visually at the see-through coolant
reservoir. Coolant should be added only to
reservoir as necessary.
• As long as there is pressure in the cooling
system, the temperature can be
considerably higher than the boiling
temperature of the solution in the radiator
without causing the solution to boil.
Removal of the radiator cap while engine is
hot and pressure is high will cause the
solution to boil instantaneously and
possibly with explosive force, spewing the
solution over engine, fenders and person
removing cap. If the solution contains
flammable anti-freeze such as alcohol (not
recommended for use at any time), there is
also the possibility of causing a serious
fire.
• Check to make sure that engine coolant
temperature is cold before removing any
part of cooling system.
• Also be sure to disconnect negative cable
from battery terminal before removing any
part.

The coolant recovery system is standard. The coolant in
the radiator expands with heat, and the coolant is
overflowed to the reservoir.
When the system cools down, the coolant is drawn back
into the radiator.
The cooling system has been filled with a quality coolant
that is a 50/50 mixture of water and ethylene glycol
antifreeze.
This 50/50 mixture coolant solution provides freezing
protection to –36 °C (–33 °F).
• Maintain cooling system freeze protection at –36 °C (–
33 °F) to ensure protection against corrosion and loss
of coolant from boiling. This should be done even if
freezing temperatures are not expected.
• Add ethylene glycol base coolant when coolant has to
be added because of coolant loss or to provide added
protection against freezing at temperature lower than
–36 °C (–33 °F).
NOTE
• Alcohol or methanol base coolant or plain
water alone should not be used in cooling
system at any time as damage to cooling
system could occur.
• Coolant must be mixed with demineralized
water or distilled water.

Anti-freeze proportioning table
Coolant capacity
M/T:
• Engine, radiator and heater: 6.8 liters (14.37/11.97
US/lmp pt.)
• Reservoir: 0.7 liters (1.48/1.23 us/lmp pt.)
• Total: 7.5 liters (15.85/13.20 US/lmp pt.)
A/T:
• Engine, radiator and heater: 6.9 liters (14.58/16.63
US/lmp pt.)
• Reservoir: 0.7 liters (1.48/1.23 us/lmp pt.)
• Total: 7.6 liters (16.06/13.38 US/lmp pt.)For M/T
modelFor A/T
model
Freezing
temperature°C–36–36
°F–33–33
Anti-freeze / Anti-
corrosion coolant
concentration%5050
Ratio of compound
to cooling waterltr. 3.75/3.75 3.8/3.8
US pt. 7.92/7.92 8.03/8.03
Imp pt. 6.60/6.60 6.69/6.69

Downloaded from www.Manualslib.com manuals search engine Charging System: 1J-5
Charging Indicator Lamp Operation
Generator Test (Undercharged Battery Check)S6RW0D1A04003
This condition, as evidenced by slow cranking or low
specific gravity can be caused by one or more of the
following conditions even though indicator lamp may be
operating normal. The following procedure also applies
to cars with voltmeter and ammeter.
• Make sure that undercharged condition has not been
caused by accessories left on for extended period of
time.
• Check drive belt for proper tension.
• If battery defect is suspected, refer to “Battery
Description”.
• Inspect wiring for defects. Check all connections for
tightness and cleanliness, battery cable connections
at battery, starting motor and ignition ground cable.
No-Load Check
1) Connect voltmeter and ammeter as shown in figure.
NOTE
Use fully charged battery.

2) Run engine from idling up to 2,000 rpm with all
accessories turned off and read meters.
If voltage is higher than standard value, check
ground of brushes.
If brushes are not grounded, replace IC regulator.
If voltage is lower than standard value, proceed to
the following check.
Specification for undercharged battery (No-load
check)
Current: 10 A
Voltage: 14.2 – 14.8 V at Hi (H) (at 25 °C, 77 °F)
Voltage: 12.5 – 13.1 V at Lo (L) (at 25 °C, 77 °F)
NOTE
Consideration should be taken that voltage
will differ somewhat with regulator case
temperature as shown in figure.

Condition Possible cause Correction / Reference Item
Charge light does not
light with ignition ON and
engine offFuse blownCheck fuse.
Indicator lamp (LED) faultyCheck BCM, combination meter and/or CAN
communication line.
Wiring connection looseTighten loose connection.
IC regulator or field coil faultyCheck generator.
Poor contact between brush and slip
ringRepair or replace.
Charge light does not go
out with engine running
(battery requires frequent
recharging)Drive belt loose or wornAdjust or replace drive belt.
IC regulator or generator faultyCheck charging system.
Wiring faultyRepair wiring.
1. Generator
2. Ammeter (between generator “B” terminal and battery (+) terminal)
3. Voltmeter (between generator “B” terminal and ground)
4. Battery
5. Load
6. Switch
I2RH011A0006-01
[A]: Regulated voltage (V)
[B]: Heatsink temperature (°C)
16.0
12.0
14.2 15.3
14.8
14.2
13.3 14.8
15.0
11.0 14.0
13.0 [A]
12.5 13.6
13.1
12.5
11.613.1
[B] -30 0 25 135
H
L
I2RH0B1A0005-01