2006 SUZUKI SX4 check engine

Downloaded from www.Manualslib.com manuals search engine 1E-8 Engine Lubrication System:
Radial clearance
Check radial clearance between outer rotor (1) and case
(2) using thickness gauge (3).
If clearance exceeds its limit, replace outer rotor or case.
Radial clearance between outer rotor and case for oil
pump
Limit: 0.310 mm (0.0122 in.)
Side clearance
Using straightedge (1) and thickness gauge (2),
measure side clearance.
If side clearance exceeds its limit, replace oil pump
assembly.
Side clearance for oil pump inner rotor
Limit: 0.15 mm (0.0059 in.)Relief valve spring free length and load
Check relief valve spring free length and load as shown
in the figure. If the measured valve spring length is lower
than the specification, replace relief valve spring.
Relief valve spring free length and load
I2RH0B150026-01
I2RH0B150027-01
Standard Limit
Free length52.4 mm
(2.06 in.)—
Load at spring
length
38.5 mm (1.52 in.)77 N
(7.7 kgf, 17.0 lb)69 N
(6.9 kgf, 15.0 lb)
I2RH01150023-01

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 1F-3 Engine Cooling System:
Diagnostic Information and Procedures
Engine Cooling Symptom DiagnosisS6RW0D1604001
Condition Possible cause Correction / Reference Item
Engine overheats
(Radiator fan operates)Loose or broken water pump beltAdjust or replace.
Not enough coolantCheck coolant level and add as necessary.
Faulty thermostatReplace.
Faulty water pumpReplace.
Dirty or bent radiator finsClean or remedy.
Coolant leakage on cooling systemRepair.
Clogged radiatorCheck and replace radiator as necessary.
Faulty radiator capReplace.
Dragging brakesAdjust brake.
Slipping clutchReplace.
Poor charge batteryCheck and replace as necessary.
Poor generation generatorCheck and repair.
ECT sensor faultyCheck and replace as necessary.
Radiator fan motor faultyCheck and replace as necessary.
ECM faultyCheck and replace as necessary.
Wiring or grounding faultyRepair as necessary.
Equipped with too much electric load
part(s)Dismount.
Engine overheats
(Radiator fan does not
operate)Fuse blownCheck fuse of relay/fuse box and check for
short circuit to ground.
Radiator cooling fan relay faultyCheck and replace as necessary.
ECT sensor faultyCheck and replace as necessary.
Radiator cooling fan motor faultyCheck and replace as necessary.
Wiring or grounding faultyRepair as necessary.
ECM faultyCheck and replace as necessary.

Downloaded from www.Manualslib.com manuals search engine 1F-5 Engine Cooling System:
Coolant Level CheckS6RW0D1606002
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
S6RW0D1606003
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 filler 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 kgf/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 DrainingS6RW0D1606004
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) Remove radiator cap.
2) Drain coolant from radiator drain plug (1).
3) After draining coolant, be sure to tighten drain plug
(1) securely.
4
1
2
3
I6RW0B160006-01
I5RH01160001-01
1I4RS0A160003-01

Downloaded from www.Manualslib.com manuals search engine 1F-7 Engine Cooling System:
Thermostat Removal and InstallationS6RW0D1606007
Removal
1) Drain coolant referring to “Cooling System Draining”.
2) Remove intake manifold referring to “Intake Manifold
Removal and Installation in Section 1D”.
3) Disconnect water hose (1) and heater hose (2) from
each pipe.
4) Remove thermostat case (3) with thermostat cap (4)
and water inlet pipe (5).
5) Remove water inlet pipe with thermostat cap from
thermostat case.
6) Remove thermostat from thermostat case (3).
Installation
Reverse removal procedure for installation noting the
following points.
• Install thermostat (5) to thermostat case (2) by
aligning air bleed valve (4) of thermostat with mark (3)
of thermostat case and, then install thermostat cap (1)
to thermostat case.
• Use new O-rings when installing.
• Refill cooling system referring to Step 7) to 17) of
“Cooling System Flush and Refill”.
• Verify that there is no coolant leakage at each
connection.
Thermostat InspectionS6RW0D1606008
• Make sure that air bleed valve (1) of thermostat is
clean.
• Check to make sure that valve 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 – 206 °F)
Va l v e l i ft
More than 8 mm (0.31 in.) 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 overcooling or overheating
tendency.
I6RW0B160007-01
4
53
12
I6RW0B160008-01
2. Thermometer 3. Heater
I3RM0A160008-01
I2RH01160012-01

Downloaded from www.Manualslib.com manuals search engine Engine Cooling System: 1F-8
Radiator Cooling Fan Assembly On-Vehicle
Inspection
S6RW0D1606009
1) Check continuity between terminals. If there is no
continuity, replace radiator fan assembly.
2) Connect battery to radiator fan motor coupler as
shown in figure, then check that the radiator fan
motor operates smoothly. If radiator fan motor does
not operate smoothly, replace radiator fan assembly.
Reference: Fan motor specified current at 12 V
: 5.7 – 7.7 A
Radiator Cooling Fan Relay InspectionS6RW0D1606010
1) Disconnect negative (–) cable from battery.
2) Remove radiator cooling fan relay (1) from main fuse
box.
3) Check that there is no continuity between terminal
“c” and “d”. If there is continuity, replace relay.
4) Connect battery positive (+) terminal to terminal “b”
of relay and battery negative (–) terminal to terminal
“a” of relay, and then check continuity between
terminal “c” and “d”. If there is no continuity, replace
relay.
Radiator Cooling Fan Assembly Removal and
Installation
S6RW0D1606011
Removal
1) Disconnect negative (–) cable at battery.
2) Disconnect connector of cooling fan motor.
3) Drain coolant referring to “Cooling System Draining”.
4) Remove radiator inlet hose (1) and reservoir (2).
I5RW0A160004-01
I5RW0A160005-01
“d” “b”“
a”
“c”
1
I5RW0A160008-02
1
2
I6RW0B160004-02

Downloaded from www.Manualslib.com manuals search engine 1F-9 Engine Cooling System:
5) Remove cooling fan mounting bolts (1).
6) Remove radiator cooling fan assembly (2).
Installation
Reverse removal procedure for installation noting the
following.
• Refill cooling system referring to Step 7) to 17) of
“Cooling System Flush and Refill”.
• After installation, verify there is no coolant leakage at
each connection.
Radiator Cooling Fan Disassembly and
Reassembly
S6RW0D1606018
Disassembly
1) Remove fan (1) from cooling fan motor (2).
2) Remove fan motor (2) from cooling fan guide (3).
Reassembly
Reverse disassembly procedures for reassembly.
Radiator On-Vehicle Inspection and CleaningS6RW0D1606012
Inspection
Check radiator for leakage or damage. Straighten bent
fins, if any.
Cleaning
Clean frontal area of radiator cores.
Radiator Removal and InstallationS6RW0D1606013
Removal
1) Disconnect negative cable at battery.
2) Drain coolant referring to “Cooling System Draining”.
3) Remove front bumper referring to “Front Bumper
and Rear Bumper Components in Section 9K”.
4) Remove cooling fan assembly referring to “Radiator
Cooling Fan Assembly Removal and Installation”.
5) Remove condenser fan referring to “Condenser
Cooling Fan Removal and Installation in Section 7B”.
6) Remove radiator outlet hose from radiator.
7) Remove radiator from vehicle.
Installation
Reverse removal procedures, noting the following.
Tighten radiator support bracket bolts to specified
torque.
Tightening torque
Radiator support bracket bolt: 33 N·m (3.3 kgf-m,
24.0 lb-ft)
• Refill cooling system referring to Step 7) to 17) of
“Cooling System Flush and Refill”.
• After installation, verify there is no coolant leakage
each connection.
I5RW0C160014-01
I5RW0C160005-01
I2RH01160014-01

Downloaded from www.Manualslib.com manuals search engine Engine Cooling System: 1F-10
Water Pump / Generator Drive Belt Tension
Inspection and Adjustment
S6RW0D1606014
WARNING!
• Disconnect negative cable at battery
before checking and adjusting belt
tension.
• 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) Inspect belt for cracks, cuts, deformation, wear and
cleanliness. If it is necessary to replace belt, refer to
“Water Pump / Generator Drive Belt Removal and
Installation”.
2) Check belt for tension. Belt is in proper tension when
it deflects the following specification under thumb
pressure (about 100 N (10kgf, 22 lbs.).
If belt tension is out of specification, go to next steps.
Water pump / generator drive belt tension
“a”: 4.5 – 5.5 mm (0.18 – 0.22 in.) as deflection /
100 N (10kgf, 22lbs)
NOTE
When replacing belt with a new one, adjust
belt tension to 4.0 – 4.5 mm (0.16 – 0.18 in.).

3) After loosening generator bracket bolts (2) and pivot
bolt (3), adjust belt tension to specification described
at step 2) by loosening / tightening generator adjust
bolt (1).
4) Tighten generator bracket bolts and pivot bolt as
specified torque.
Tightening torque
Generator bracket bolt (a): 25 N·m (2.5 kgf-m,
18.0 lb-ft)
Generator pivot bolt (b): 50 N·m (5.0 kgf-m, 36.0
lb-ft)5) Check belt tension for specification after turning
crankshaft two rotations clockwise.
6) Tighten generator adjusting bolt (1) as specified
torque.
Tightening torque
Generator adjusting bolt (c): Tighten 7.0 N⋅m
(0.7 kgf-m, 5.0 lb-ft) by the specified procedure.
7) Connect negative cable at battery.
Water Pump / Generator Drive Belt Removal and
Installation
S6RW0D1606015
Removal
1) Disconnect negative cable at battery.
2) If vehicle equipped with A/C, remove compressor
drive belt before removing water pump belt (1).
Refer to “Compressor Drive Belt Removal and
Installation in Section 7B” or “Compressor Drive Belt
Removal and Installation in Section 7B”.
3) Loosen generator bracket bolts (2) and generator
pivot bolt (3).
4) Loosen generator adjusting bolt (4), and then
remove water pump belt.
a
I5RW0C160006-01
1, (c)
2, (a)
3, (b)
I5RW0C160007-01
4
23
1
I5RW0C160008-01