2003 Hyundai Accent check engine

5- 2 VEHICLE MAINTENANCE REQUIREMENTS
F010B01A-AATMaintenance Requirements
The maintenance required for your Hyundai can
be divided into three main areas:
o Specified scheduled procedures
o General checks
o Do-it-yourself maintenance
F010A01A-AATMAINTENANCE INTERVALS
Service Requirements
To ensure that you receive the greatest number
of miles of satisfying operation from your
Hyundai, certain maintenance procedures must
be performed. Although careful design and engi-
neering have reduced these to a minimum,
those that are required are of the utmost impor-
tance.
It is your responsibility to have these mainte-
nance procedures performed to comply with the
terms of the warranties covering your new
Hyundai. The Owner's Handbook supplied with
your new vehicle provides further information
about these warranties.
F010D01A-AAT
General Checks
These are the regular checks you should per-
form when you drive your Hyundai or you fill the
fuel tank. A list of these items will be found on
page 6-3.
F010C01A-AATSpecified Scheduled Procedures
These are the procedures such as inspections,
adjustments and replacements that are listed in
the maintenance charts starting on page 5-4.
These procedures must be performed at the
intervals shown in the maintenance schedule to
assure that your warranty remains in effect.
Although it is strongly recommended that they
be performed by the factory-trained or distribu-
tor-trained technicians at your Hyundai dealer,
these procedures may be performed at any
qualified service facility.
It is suggested that genuine Hyundai service
parts be used for any required repairs or re-
placements. Other parts of equivalent quality
such as engine oil, engine coolant, manual or
auto transaxle oil, brake fluid and so on which
are not supplied by Hyundai Motor Company or
its distributor may be used without affecting your
warranty coverage but you should always be
sure these are equivalent to the quality of the
original Hyundai parts. Your Service Passport
provides further information about your warranty
coverage.
F010F01A-AATA Few Tips
o Whenever you have your Hyundai serviced,
keep copies of the service records in your
glove box. This will help ensure that you can
document that the required procedures have
been performed to keep your warranties in
effect. This is especially important when ser-
vice is not performed by an authorized
Hyundai dealer.
o If you choose to do your own maintenance
and repairs, you may find it helpful to have
an official Hyundai Shop Manual. A copy of
this publication may be purchased at your
Hyundai dealer's parts department.
F010E01A-AATDo-It-Yourself Maintenance
If you are mechanically inclined, own a few tools
that are required and want to take the time to do
so, you can inspect and service a number of
items. For more information about doing it your-
self, see Section 6.

VEHICLE MAINTENANCE REQUIREMENTS 5- 7
F060D01A-AATo Fuel lines, fuel hoses and
connections
Check the fuel lines, fuel hoses and connec-
tions for leakage and damage. Have a trained
techincian, replace any damaged or leaking
parts immediately.
F060C01A-AAT
o Fuel filter
A clogged filter can limit the speed at which the
vehicle may be driven, damage the emission
system and cause hard starting. If an excessive
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 techni-
cians.
F060M01A-AAT
o Engine oil and filter
The 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.
F060A01A-AATEXPLANATION OF SCHEDULED MAIN-
TENANCE ITEMS
F060H01A-AATo Air cleaner filter
A Genuine Hyundai air cleaner filter is recom-
mended when the filter is replaced.
F060G01A-AATo Vapor hose and fuel filler cap
The 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.
F060F01A-AAT
o Vacuum, crankcase ventilation
hoses
Inspect 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. Par-
ticular 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.
F060B01A-AAT
o Drive belts
Inspect 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 and ad-
justed as necessary.
F060J01A-AAT
o Spark plugs
Make sure to install new spark plugs of the
correct heat range.

5- 8 VEHICLE MAINTENANCE REQUIREMENTS
F070H01A-AATo Rear brake drums/linings,
parking brake
Check the rear brake drums and linings for
scoring, burning, leaking fluid, broken parts, and
excessive wear. Inspect the parking brake sys-
tem including the parking brake lever and cables.
For detailed service procedures, refer to the
Shop Manual.
F070F01A-AAT
o Brake hoses and lines
Visually check for proper installation, chafing,
cracks, deterioration and any leakage. Replace
any deteriorated or damaged parts immediately.
F070G02A-AATo Brake fluid
Check 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.
F070E04A-AATo Automatic Transaxle Fluid
The 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, DIAMOND ATF SP-III or SK
ATF SP-III when adding or changing fluid.
F070K01A-AAT
o Exhaust pipe and muffler
Visually inspect the exhaust pipes, muffler and
hangers for cracks, deterioration, or damage.
Start the engine and listen carefully for any
exhaust gas leakage. Tighten connections or
replace parts as necessary.
F070J01A-AAT
o Brake pads, calipers and rotors
Check the pads for excessive wear, discs for
run out and wear, and calipers for fluid leakage.F070D01A-AAT
o Manual transaxle oil
Inspect 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.
F060E01A-AAT
o Timing belt
Inspect all parts related to the timing belt for
damage and deformation. Replace any dam-
aged parts immediately.
F070C01A-AATo Coolant
The coolant should be changed at the
intervals specified in the maintenance schedule.

VEHICLE MAINTENANCE REQUIREMENTS 5- 9
F070M01A-AAT
o Steering gear box, linkage &
boots/lower arm ball joint
With the vehicle stopped and engine off, check
for excessive free-play in the steering wheel.
Check the linkage for bends or damage. Check
the dust boots and ball joints for deterioration,
cracks, or damage. Replace any damaged parts.
F070L01A-AATo Suspension mounting bolts
Check the suspension connections for loose-
ness or damage. Retighten to the specified
torque.
F070Q01A-AAT
o Air conditioning refrigerant
Check the air conditioning lines and connec-
tions for leakage and damage. Check air condi-
tioning performance according to the relevant
shop manual if necessary.
F070P01A-AATo Driveshafts and boots
Check the drive shafts, boots and clamps for
cracks, deterioration, or damage. Replace any
damaged parts and, if necessary, repack the
grease.
F070N01A-AAT
o Power steering pump, belt and
hoses
Check the power steering pump and hoses for
leakage and damage. Replace any damaged or
leaking parts immediately. Inspect the power
steering belt for evidence of cuts, cracks, ex-
cessive wear, oiliness and proper tension. Re-
place or adjust it if necessary.

6. Do-It-Yourself Maintenance
Engine Compartment ...................................................................... 6-2
General Checks .............................................................................. 6-3
Checking the Engine Oil ................................................................. 6-4
Changing the Oil and Filter ............................................................. 6-5
Checking and Changing the Engine Coolant ................................. 6-6
Spark Plugs .................................................................................... 6-8
Changing the Air Cleaner Filter ...................................................... 6-9
Checking the Transaxle Oil (Manual) ...........................................6-10
Checking the Transaxle Fluid (Automatic) ................................... 6-11
Checking the Brakes ..................................................................... 6-13
Checking the Clutch Fluid ............................................................. 6-14
Air Conditioning Care .................................................................... 6-14
Changing the Air Filter (For Evaporator and Blower Unit) ........... 6-15
Checking Drive Belts .................................................................... 6-17
Checking and Replacing Fuses .................................................... 6-18
Power Steering Fluid Level ........................................................... 6-20
Replacement of Bulbs .................................................................. 6-22
Fuse Panel Description ................................................................ 6-28
6

DO-IT-YOURSELF MAINTENANCE 6- 3
G020C01A-AATVehicle Interior
The following should be checked each time
when the vehicle is driven:
o Light operation
o Windshield wiper operation
o Horn operation
o Defroster, heater system operation (and air
conditioning, if installed)
o Steering operation and condition
o Mirror condition and operation
o Turn signal operation
o Accelerator pedal operation
o Brake operation, including parking brake
o Manual transaxle operation, including clutch
operation
o Automatic transaxle operation, including
"Park" mechanism operation
o Seat control condition and operation
o Seat belt condition and operation
o Sun visor operation
If you notice anything that does not operate
correctly or appear to be functioning correctly,
inspect it carefully and seek assistance from
your Hyundai dealer if service is needed.
G020A01A-AATGENERAL CHECKS
Engine Compartment
The following should be checked regularly:
o Engine oil level and condition
o Transaxle fluid level and condition
o Brake fluid level
o Clutch fluid level
o Engine coolant level
o Windshield washer fluid level
o Accessory drive belt condition
o Engine coolant hose condition
o Fluid leaks (on or below components)
o Power steering fluid level and condition
o Battery Condition
o Air filter condition
G020B01A-AATVehicle Exterior
The following should be checked monthly:
o Overall appearance and condition
o Wheel condition and wheel nut tightness
o Exhaust system condition
o Light condition and operation
o Windshield glass condition
o Wiper blade condition
o Paint condition and body corrosion
o Fluid leaks
o Door and hood lock condition
o Tire pressure and condition
(including spare tire)

6- 4 DO-IT-YOURSELF MAINTENANCE
G030A01A-AATCHECKING THE ENGINE OIL
Engine oil is essential to the performance and
service of the engine. It is suggested that you
check the oil level at least once a week in
normal use and more often if you are on a trip or
driving in severe conditions.
G030B01A-AATRecommended Oil
SH, SG or SG/CD (API) multi-grade and fuel
efficient oil is recommended.
G030A02AG030C02A-AAT
To Check the Oil Level
Before checking the oil, warm up the engine to
the normal operating temperature and be sure it
is parked on level ground. Turn the engine off.
Wait five minutes, then remove the dipstick,
wipe it off, fully reinsert the dipstick and with-
draw it again. Then note the highest level the oil
has reached on the dipstick. It should be be-
tween the upper ("FULL") and lower ("LOW")
range.
G030D01A-AATAdding Oil
If the oil level is close to or below the "LOW"
mark, add oil until it reaches the "FULL" mark.
To add oil:
1. Remove the oil filler cap by turning it counter-
clockwise.
2. Add oil, then check the level again. Do not
overfill.
3. Replace the cap by turning it clockwise.
The distance between the "FULL" and "LOW"
marks is equal to about 1 quart of oil.
G030C03AG030D03A

DO-IT-YOURSELF MAINTENANCE 6- 5
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G040A02A-AATCHANGING THE OIL AND FILTER3. Slide underneath the car and loosen the
drain plug by turning it counterclockwise with
a wrench of the proper size. Be sure that a
drain pan is in position to catch the oil as it
drains out, then remove the drain plug.
F040A02TB
Oil filler cap
Drain plug Oil filter
.........
WARNING:Be very careful when draining the engine oil
as it may be hot enough to burn you!
4. When the oil has stopped draining, replace
the drain plug using a new washer and re-
tighten by turning it clockwise.
Oil pan drain plug tightening torque:
3.5 ~ 4.5 kgf.m
5. Remove the oil filter by turning it counter-
clockwise with a oil filter wrench of the proper
size. A certain amount of oil will come out
when you remove the filter. So be sure to
have your drain pan in place underneath it.
6. Install a new oil filter in accordance with the
instructions on the carton or on the filter
itself. Do not over-tighten (Tightening torque
: 1.2 ~ 1.6 kgf.m).
Be sure that the mounting surface on the
engine is clean and that the old gasket is
removed completely. Lubricate the new gas-
ket on the filter before installation with clean
engine oil.
!
7. Refill the crankcase with the recommended
engine oil. Refer to the specification in chap-
ter 9 for engine oil capacity.
8. Start the engine and check to be sure no oil
is leaking from the drain plug or oil filter.
9. Shut off the engine and recheck the oil
level.
NOTE:Always dispose of used engine oil in an
environmentally acceptable manner. It is sug-
gested that it be placed in a sealed container
and taken to a service station for reclama-
tion. Do not pour the oil on the ground or put
it in with the household trash.
The engine oil and filter should be changed at
those intervals specified in the maintenance
schedule in Section 5. If the car is being driven
in severe conditions, more frequent oil and filter
changes are required.
The procedure for changing the oil and filter is
as follows:
1. Park the car on level ground and set the
parking brake. Start the engine and let it
warm up until the needle on the temperature
gauge moves above the lowest mark. Turn
the engine off and place the gear selector
lever in "P" (automatic) or reverse gear
(manual transaxle).
2. Open the hood and remove the engine oil
filler cap.
WARNING:Used motor oil may cause irritation or can-
cer of the skin if left in contact with the skin
for prolonged periods of time. Wash your
hands thoroughly with soap and warm water
as soon as possible after handling used oil.