2006 Hyundai Sonata fuel

5
VEHICLE MAINTENANCE REQUIREMENTS
7
F060D01A-AATo Fuel Lines, Fuel Hoses and Connec-
tionsCheck the fuel lines, fuel hoses and connec-
tions for leakage and damage. Have a trained
technician replace any damaged or leaking
parts immediately.F060B01NF-GATo Drive BeltsInspect all drive belts for evidence of cuts,
cracks, excessive wear or oil saturation and
replace if necessary. Drive belts should be
checked periodically for proper tension.
F060M01A-AATo Engine Oil and FilterThe engine oil and filter should be changed at the
intervals specified in the maintenance sched-
ule. If the car is being driven in severe condi-
tions, more frequent oil and filter changes are
required.F060C01A-AATo Fuel FilterA clogged filter can limit the speed at which the
vehicle may be driven, damage the emission
system and cause hard starting. If an exces-
sive amount of foreign matter accumulates in
the fuel tank, the filter may require replacement
more frequently.
After installing a new filter, run the engine for
several minutes, and check for leaks at the
connections. Fuel filters should be installed by
trained technicians.
F060F01A-AATo Vacuum, Crankcase Ventilation
HosesInspect the surface of hoses for evidence of
heat and/or mechanical damage. Hard and
brittle rubber, cracking, tears, cuts, abrasions,
and excessive swelling indicate deterioration.
Particular attention should be paid to examine
those hose surfaces nearest to high heat
sources, such as the exhaust manifold.
Inspect the hose routing to assure that the
hoses do not come in contact with any heat
source, sharp edges or moving component
which might cause heat damage or mechanical
wear. Inspect all hose connections, such as
clamps and couplings, to make sure they are
secure, and that no leaks are present. Hoses
should be replaced immediately if there is any
evidence of deterioration or damage.
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS
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5
VEHICLE MAINTENANCE REQUIREMENTS8
F070G02A-AATo Brake FluidCheck brake fluid level in the brake fluid reser-
voir. The level should be between "MIN" and
"MAX" marks on the side of the reservoir. Use
only hydraulic brake fluid conforming to DOT 3
or DOT 4.F070F01A-AATo Brake Hoses and LinesVisually check for proper installation, chafing,
cracks, deterioration and any leakage. Replace
any deteriorated or damaged parts immedi-
ately.
F070E06A-AATo Automatic Transaxle FluidThe fluid level should be in the “HOT” range of
the dipstick, after the engine and transaxle are
at normal operating temperature. Check the
automatic transaxle fluid level with the engine
running and the transaxle in neutral, with the
parking brake properly applied. Use HYUNDAI
GENUINE ATF SP III, DIAMOND ATF SP III, SK
ATF SP III or other brands meeting the SP III
specification approved by Hyundai Motor Co.
when adding or changing fluid. Using the wrong
ATF may result in damage to the ATM.
F070H01A-AATo Rear Brake Drums and Linings/
Parking BrakeCheck the rear brake drums and linings for
scoring, burning, leaking fluid, broken parts,
and excessive wear. Inspect the parking brake
system including the parking brake lever and
cables. For detailed service procedures, refer
to the Shop Manual.
F070C01A-AATo CoolantThe coolant should be changed at the intervals
specified in the maintenance schedule.
F060J01A-AATo Spark PlugsMake sure to install new spark plugs of the
correct heat range.F060H01A-AATo Air Cleaner FilterA Genuine Hyundai air cleaner filter is recom-
mended when the filter is replaced.F060G01A-AATo Vapor Hose and Fuel Filler CapThe vapor hose and fuel filler cap should be
inspected at those intervals specified in the
maintenance schedule. Make sure that a new
vapor hose or fuel filler cap is correctly re-
placed.
F070D01A-AATo Manual Transaxle OilInspect the manual transaxle oil according to
the maintenance schedule.NOTE:If the oil level is low, check for possible leaks
before adding oil. Do not overfill.
F060N02E-AATo Valve ClearanceInspect excessive valve noise and/or engine
vibration and adjust if necessary. A qualified
technician should perform the operation.
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6
DO-IT-YOURSELF MAINTENANCE
5
G030C01JM-AATTo Check the Oil Level
Before checking the oil, warm up the engine to
the normal operating temperature and be sure
your car is parked on level ground. Turn the
engine off.
Wait five minutes, then remove the dipstick,
wipe it off, fully reinsert the dipstick and withdraw
it again. Then note the highest level the oil has
reached on the dipstick. It should be between
the upper ("F") and lower ("L") range.
!
WARNING:
Be very careful not to touch the radiator
hose when checking the engine oil as it may
be hot enough to burn you.
G030C01NF
G030C02NF
(2.4L)
(3.3L)
NOTE:o For good fuel economy, SAE 5W-20 (5W-
30), ILSAC GF-3 engine oil is preferred
regardless of regional option and en-
gine variation.
o If SAE 5W-20, ILSAC GF-3 engine oil is
not available, secondary recommended
engine oil for corresponding tempera-
ture range can be used.

6
DO-IT-YOURSELF MAINTENANCE
27
HEADLIGHT AIMING ADJUSTMENTG290A03O-AATBefore performing aiming adjustment, make
sure of the following.
1. Keep all tires inflated to the correct pressure.
2. Place the vehicle on level ground and press
the front bumper & rear bumper down sev-
eral times.
Place vehicle at a distance of 118 in. (3m)
from the test wall.
3. See that the vehicle is unloaded (except for
full levels of coolant, engine oil and fuel, and
spare tire, jack, and tools). Have the driver
or equivalent weight placed in driver's seat.
4. Clean the headlight lenses and turn on the
headlights (Low beam).
5. Open the hood.
G290A01NF-A
Vertical
aiming
!
6. Draw a vertical line (through the center of
each headlight beam pattern) and a horizon-
tal line (through the center of each headlight
beam pattern) on the aiming screen.
And then, draw a parallel line at 0.8 in. (21
mm) under the horizontal line.
7. Adjust each cut-off line of the low beam to the
parallel line with a phillips screwdriver -
VERTICAL AIMING.
WARNING:
Never attempt to adjust the horizontal align-
ment of your headlights. Horizontal aiming
must be adjusted by an authorized Hyundai
dealer to avoid incorrect alignment that will
reduce the effectiveness of your headlights.
G290B01NF-AATAdjustment After Headlight Assembly
Replacement
G260B01GK
L
W
H
H
Cut-off line
Ground line
"P"
Horizontal line
Vertical line
0.8 in.(21 mm)
If the vehicle has had front body repair and the
headlight assembly has been replaced, the
headlight aiming should be checked using the
aiming screen as shown in the illustration. Turn
on the headlight switch (Low Beam Position).
1. Adjust headlights so that main axis of light is
parallel to the center line of the body and is
aligned with point "P" shown in the illustration.
2. Dotted lines in the illustration show the center
of the headlights.

6
DO-IT-YOURSELF MAINTENANCE
37
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
HORN
TAIL
ECU
IG1
DRL
FR FOG
A/CON
F/PUMP
DIODE
ATM
STOP
H/LP LO RH
S/ROOF
H/LP WASHER
H/LP HI
ECU
SNSR.3
SNSR.1
SNSR.2
B/UP
IGN COIL
ECU (IG1)
H/LP LO
ABS
PROTECTED COMPONENTS
ABS/ESC control module, Multipurpose check connector
ABS/ESC control module, Multipurpose check connector
Fuse 23, 24, 30, 31, 32, 33, 34, 35
Defogger relay
Blower relay
Power window relay, Fuse 16
Start relay, Ignition switch (IG2, START)
Engine control unit relay
Power connector 1/2, Fuse 21,22
Ignition switch (ACC, IG1)
Fusible Iink (ABS. 1, ABS. 2, RR HTD, BLOWER)
(Spare)
Horn relay
Tail light relay
PCM
(Spare)
Siren relay, DRL control module
Front fog light relay
A/C relay
Fuel pump relay
(Spare)
ATM control relay
Stop light relay
(Spare)
Sunroof control module
Headlight washer motor
Headlight relay (High)
(Spare)
Oxygen sensor, Fuel pump relay
Mass air flow sensor, Crankshaft/Camshaft position sensor, Oil control valve, SMATRA
A/C relay, Cooling fan relay, Injectors
Back up light switch, Pulse generator, Vehicle speed sensor
Ignition coils, Condenser
PCM
Headlight relay (Low)
ABS/ESC control module, Multipurpose check connector
ABS.1
ABS.2
I/P B+1
RR HTD
BLOWER
P/WDW
IGN.2
ECU RLY
I/P B+2
IGN.1
ALT
MDPSFUSE RATING
40A
20A
40A
40A
40A
40A
40A
30A
30A
30A
150A
100A
15A
20A
10A
10A
15A
15A
10A
20A
-
20A
15A
15A
15A
20A
20A
10A
10A
15A
15A
10A
20A
10A
20A
10A
DESCRIPTION
FUSIBLE
LINK
FUSE

6
DO-IT-YOURSELF MAINTENANCE
40
PROTECTED COMPONENTS
Audio amp
Door lock/unlock relay
Hazard switch, Hazard relay
Power seat manual switch(RHD)
Instrument cluster
Hazard switch
BCM(Body Control Module), Instrument cluster, Yaw rate sensor, ESC switch
(Spare)
Burglar alarm relay
(Spare)
Rear fog light relay
Trunk lid relay, Fuel filler door and trunk lid switch
(Spare)
Power seat manual switch
Sport mode switch, Key solenoid
A/C control module, Outside mirror and mirror folding motor
Audio
BCM(Body Control Module), Digital clock, Instrument cluster, A/C control module, Courtesy lights
FUSE RATING
20A
20A
10A
30A
10A
10A
10A
15A
10A
15A
15A
15A
15A
30A
10A
10A
15A
15A FUSE
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
POWER CONNECTOR. 1
POWER CONNECTOR. 2

7
EMISSION CONTROL SYSTEMS2
EMISSION CONTROL
SYSTEMS
H010B01A-AAT1. Crankcase Emission Control SystemThe positive crankcase ventilation system is
employed to prevent air pollution caused by
blow-by gases being emitted from the crank-
case. This system supplies fresh filtered air to
the crankcase through the air intake hose.
Inside the crankcase, the fresh air mixes with
blow-by gases, which then pass through the
PCV valve into the induction system.
CanisterFuel vapors generated inside the fuel tank are
absorbed and stored in the onboard canister.
When the engine is running, the fuel vapors
absorbed in the canister are drawn into the
surge tank through the purge control solenoid
valve.Purge Control Solenoid Valve (PCSV)The purge control solenoid valve is controlled
by the Engine Control Module (ECM); when the
engine coolant temperature is low during idling,
the PCSV closes so that evaporated fuel is not
taken into the engine. After the engine warms-
up during ordinary driving, the PCSV opens to
introduce evaporated fuel to the engine.H010D01A-AAT3. Exhaust Emission Control
SystemThe Exhaust Emission Control System is a
highly effective system which controls exhaust
emissions while maintaining good vehicle per-
formance.
H010A01NF-AATYour Hyundai is equipped with an emission
control system to meet all emission regulations.
There are three emission control systems which
are as follows.
(1) Crankcase emission control system
(2) Evaporative emission control system
(3) Exhaust emission control system
In order to assure the proper function of the
emission control systems, it is recommended
that you have your car inspected and main-
tained by an authorized Hyundai dealer in ac-
cordance with the maintenance schedule in this
manual.
Caution for the Inspection and Maintenance
Test (With Electronic Stability Control (ESC)
system)
o To prevent the vehicle from misfiring
during dynamometer testing, turn the
Electronic Stability Control (ESC) sys-
tem off by pressing the ESC switch.
o After dynamometer testing is completed,
turn the ESC system back on by pressing
the ESC switch again.
H010C01S-AAT2. Evaporative Emission Control (Includ-
ing ORVR: Onboard Refueling Vapor
Recovery) SystemThe Evaporative Emission Control System is
designed to prevent fuel vapors from escaping
into the atmosphere.
(The ORVR system is designed to allow the
vapors from the fuel tank to be loaded into a
canister while refueling at the gas station, pre-
venting the escape of fuel vapors into the
atmosphere.)
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7
EMISSION CONTROL SYSTEMS
3
!
!
CATALYTIC CONVERTERH020A01A-AATAll Hyundai vehicles are equipped with a mono-
lith type three-way catalytic converter to re-
duce the carbon monoxide, hydrocarbons and
nitrogen oxides contained in the exhaust gas.
Exhaust gases passing through the catalytic
converter cause it to operate at a very high
temperature. The introduction of large amounts
of unburned gasoline into the exhaust may
cause the catalytic converter to overheat and
create a fire hazard. This risk may be reduced
by observing the following:Catalytic Converter
WARNING:
o Use unleaded fuel only.
o Maintain the engine in good operating
condition. Extremely high catalytic con-
verter temperatures can result from im-
proper operation of the electrical, igni-
tion or multiport electronic fuel injec-
tion.
o If your engine stalls, pings, knocks, or is
hard to start, have your Hyundai dealer
inspect and repair the problem as soon
as possible.
o Avoid driving with a very low fuel level.
Running out of gasoline may cause the
engine to misfire and result in damage to
the catalytic converter.
o Avoid idling the engine for periods
longer than 10 minutes.
o The vehicle should not be pushed or
pulled to get started. This may cause the
catalytic converter to overheat and cre-
ate a fire hazard.
o Do not touch the catalytic converter or
any other part of the exhaust system
while the catalytic converter is hot. Shut
off the engine, wait for at least one hour
before touching the catalytic converter
or any other part of the exhaust system.
H020A01NF
o Remember that your Hyundai dealer is
your best source of assistance.
o Do not stop your Hyundai over any com-
bustible material such as grass, paper,
leaves or rags. These materials might
contact the hot catalytic converter and a
fire might result.
WARNING:
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