2003 Hyundai Coupe spark plugs replace

DRIVING YOUR HYUNDAI
2- 12 C160G01A-GAT To Keep Locks from FreezingTo keep the locks from freezing, squirt an ap- proved de-icer fluid or glycerine into the keyopening. If a lock is covered with ice, squirt it withan approved de-icing fluid to remove the ice. Ifthe lock is frozen internally, you may be able tothaw it out by using a heated key. Handle theheated key with care to avoid injury. NOTE: The proper temperature for using the immo-bilizer key is from -40°C to 80°C. If you heatthe immobilizer key over 80°C to open thefrozen lock, it may cause damage to thetransponder in its head. C160H01A-AAT Use Approved Anti-Freeze in Window Washer System To keep the water in the window washer system from freezing, add an approved anti-freeze solu-tion in accordance with instructions on the con-tainer. Window washer anti-freeze is availablefrom Hyundai dealers and most auto parts out-lets. Do not use engine coolant or other types ofanti-freeze as these may damage the finish.
C160B01A-GAT Snowy or Icy ConditionsTo drive your vehicle in deep snow, it may be necessary to use snow tires or to install tirechains on your tires. If snow tires are needed, itis necessary to select tires equivalent in size andtype to the original equipment tires. Failure to doso may adversely affect the safety and handlingof your car. Speeding, rapid acceleration, sud-den brake applications, and sharp turns arepotentially very hazardous practices. Duringdeceleration, use engine braking to the fullestextent. Sudden brake applications on snowy oricy roads may cause skids to occur. You need tokeep sufficient distance between the vehicle infront and your vehicle. Also, apply the brakegently. It should be noted that installing tire chainson the tire will provide a greater driving force, butwill not prevent side skids. NOTE: Tire chains are not legal in all provinces.Check province laws before fitting tire chains. C160C01A-AAT Use High Quality Ethylene Glycol Coolant Your Hyundai is delivered with high quality ethyl- ene glycol coolant in the cooling system. It is theonly type of coolant that should be used becauseit helps prevent corrosion in the cooling system,lubricates the water pump and prevents freezing.Be sure to replace or replenish your coolant in
C160D01F-AAT Check Battery and Cables Winter puts additional burdens on the battery system. Visually inspect the battery and cablesas described in Section 6 (See page 6-18). Thelevel of charge in your battery can be checkedby your Hyundai dealer or a service station. C160E01A-AAT Change to "Winter Weight" Oil if Necessary In some climates it is recommended that a lower viscosity "winter weight" oil be used during coldweather. See Section 9 for recommendations. Ifyou aren't sure what weight oil you should use,consult your Hyundai dealer. C160F01F-GAT Check Spark Plugs and Ignition Sys- tem Inspect your spark plugs as described in Section 6 (See page 6-8) and replace them if necessary.Also check all ignition wiring and components tobe sure they are not cracked, worn or damagedin any way.
accordance with the maintenance schedule inSection 5. Before winter, have your coolant test-ed to assure that its freezing point is sufficient forthe temperatures anticipated during the winter.

VEHICLE MAINTENANCE REQUIREMENTS
5- 2 1 2 3 4 5 6 7 8 9
10 ENGINE CONTROL SYSTEM MAINTENANCE ENGINE OIL & FILTER (SG OR ABOVE) See Note (1) DRIVE BELT FUEL FILTER (MPI) FUEL LINES, FUEL HOSES & CONNECTIONS TIMING BELT VAPOR HOSE & FUEL FILLER CAP VACUUM CRANKCASE VENTILATION HOSES AIR CLEANER FILTER SPARK PLUGS SPARK PLUGS (PLATINUM COATED) VALVE CLEARENCE (2.0L)
F030A01GK-GAT
SCHEDULED MAINTENANCE The following maintenance services must be performed to assure good vehicle control and performance. Keep receipts for all vehi cle services to protect
your warranty. Where both mileage and time are shown, the frequency of service is determined by whichever occurs first.
F030B03GK-GAT R :Replace I : Inspect and, after Inspection, clean, adjust, repair or replace if necessary.
NO. DESCRIPTION105 84
R
I I 120
96
R I I I I I
R
90 72
R II I
R I I
R R
75 60
R
I I
60 48
R I I I I I I
R
45 36
R I I I
30 24
R I I I I
R
15 12
R
I I
KILOMETERS X 1000 MONTHS
Note : (1) SF OR LOWER: EVERY 10,000 KM OR 6 MONTHS : "R"
FOR 2.0 DOHC CVVT : SH (API), GF-1 (ILSAC) OR ABOVE
(2) FOR EVERY 40,000 KM: "R"
(3) FOR EVERY 96,000 KM OR 48 MONTHS, WHICHEVER OCCURS FIRST : "I"
See Note (2)
1.6 DOHC/2.0 DOHC CVVT (ALT, W/PUMP, P/STR'G) 2.7 V6 (AUTO-TENSIONER, ALT, P/STR'G, A/CON)
See Note (3)

VEHICLE MAINTENANCE REQUIREMENTS
5- 4 European Community Only Except European Community
ENGINE OIL AND FILTER AIR CLEANER FILTER SPARK PLUGSTIMING BELTBRAKE PADS, CALIPERS AND ROTORSREAR BRAKE DRUMS/LININGS/PADS, PARKING BRAKESTEERING GEAR BOX, LINKAGE& BOOTS/LOWER ARM BALL JOINTDRIVESHAFTS AND BOOTSMANUAL TRANSAXLE OILAUTOMATICTRANSAXLE FLUIDAIR CONDITIONER FILTER (FOR BLOWER UNIT)
F040A03GK-GAT
MAINTENANCE UNDER SEVERE USAGE CONDITIONS
The following items must be serviced more frequently on cars normally used under severe driving conditions. Refer to the chart below for the appropriate maintenance intervals. R : Replace I : Inspect and, after inspection, clean, adjust, repair or replace if necessary
DRIVING
CONDITIONMAINTENANCE INTERVALS
R R RR
II II
RRR
MAINTENANCE
OPERATION
MAINTENANCE ITEM
EVERY 7,500 KM OR 6 MONTHS EVERY 5,000 KM OR 6 MONTHSMORE FREQUENTLYMORE FREQUENTLYEVERY 60,000 KM OR 48 MONTHSMORE FREQUENTLYMORE FREQUENTLY MORE FREQUENTLYEVERY 15,000 KM OR 12 MONTHS EVERY 100,000 KMEVERY 45,000 KMEVERY 40,000 KMMORE FREQUENTLYA, B, C, F, H C, E B, HD, E, F, GC, D, G, HC, D, G, H C, D, E, FC, D, E, F, G A, C, D, E, F, G, H, I, J A, C, E, F, G, H, IC, E
SEVERE DRIVING CONDITIONS
A - Repeated short distance driving
B - Extensive idling
C - Driving in dusty, rough roads
D - Driving in areas using salt or other corrosive materials or in very cold weather
E - Driving in sandy areas F - More than 50% driving in heavy city traffic during hot weather
above 32°C (90°F)
G - Driving in mountainous areas
H - Towing a trailer
I - Driving as a patrol car, taxi, other commercial use car or vehicle towing
J - Driving over 170 km/h1.6 DOHC/2.7 V6 2.0 DOHC CVVT

VEHICLE MAINTENANCE REQUIREMENTS 5-5
F060A01A-AAT
EXPLANATION OF SCHEDULED MAIN- TENANCE ITEMS
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 arerequired.
F060B02A-AAT
o Drive Belts Inspect all drive belts for evidence of cuts,
cracks, excessive wear or oil saturation andreplace if necessary. Drive belts should bechecked periodically for proper tension andadjusted as necessary.
F060C01A-AAT
o Fuel Filter
A clogged filter can limit the speed at which the
vehicle may be driven, damage the emissionsystem and cause hard starting. If an exces-sive amount of foreign matter accumulates inthe fuel tank, the filter may require replacementmore frequently.
After installing a new filter, run the engine for
several minutes, and check for leaks at theconnections. Fuel filters should be installed bytrained technicians. F060D01A-AAT
o Fuel Lines, Fuel Hoses and Connec-
tions
Check the fuel lines, fuel hoses and connec-
tions for leakage and damage. Have a trainedtechnician replace any damaged or leaking partsimmediately.
F060E01A-AAT
o Timing Belt Inspect all parts related to the timing belt for
damage and deformation. Replace any dam-aged parts immediately.
F060G01A-AAT
o Vapor Hose and Fuel Filler cap The vapor hose and fuel filler cap should be
inspected at those intervals specified in themaintenance schedule. Make sure that a newvapor 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 brit-tle rubber, cracking, tears, cuts, abrasions, andexcessive swelling indicate deterioration. Par-ticular attention should be paid to examiningthose hose surfaces nearest to high heat sourc-es, such as the exhaust manifold. Inspect the hose routing to assure that the
hoses do not come in contact with any heatsource, sharp edges or moving componentwhich might cause heat damage or mechanicalwear. Inspect all hose connections, such asclamps and couplings, to make sure they aresecure, and that no leaks are present. Hosesshould be replaced immediately if there is anyevidence of deterioration or damage.
F060H01A-AAT
o Air Cleaner Filter
A Genuine Hyundai air cleaner filter is recom-
mended when the filter is replaced.
F060J01A-AAT
o Spark Plugs Make sure to install new spark plugs of the
correct heat range.
F070B01A-GAT
o Cooling System
Check the cooling system part, such as radia-
tor, coolant reservoir, hoses and connectionsfor leakage and damage. Replace any dam-aged parts. F060N02E-GAT
o Valve Clearance Inspect excessive valve noise and/or engine
vibration and adjust if necessary. A qualifiedtechnician should perform the operation.

DO-IT-YOURSELF MAINTENANCE
6-8 5. Replace the radiator and reservoir caps and
check to be sure the drain cocks are fully closed and not leaking.
WARNING: The cooling fan is controlled by engine cool- ant temperature and may sometimes oper-ate even when the engine is not running.Use extreme caution when working near theblades of the coolant fan so that you are notinjured by a rotating fan blade. As the en-gine coolant temperature decreases, the fanwill automatically shut off. This is a normalcondition. G060A02Y-GAT
SPARK PLUGS
YN60100A
V6
Your engine was originally equipped with plati- num-tipped spark plugs. (For 2.7L only). Platinum-tipped spark plugs will last longer than conventional type spark plugs and can be iden-tified by blue lines on the ceramic shell. NOTE: Do not clean or regap platinum-tipped spark plugs.
G060B01GK-GAT
Replacing the Spark Plugs The spark plugs should be changed at the
intervals specified in the vehicle maintenanceschedule in Section 5 or whenever engine per-formance indicates they should be changed.Symptoms that suggest poor spark plug perfor-mance include engine misfiring under load, lossof fuel economy, poor acceleration, etc. Whenspark plugs are replaced, always use sparkplugs recommended by Hyundai. The use ofother spark plugs can result in loss of perfor-mance, radio interference or engine damage.
NOTE: When replacing the spark plugs, genuine
Hyundai replacement parts are recom- mended. Recommended Spark Plugs:
Type
RC10YC4(CHAMPION) BKR5ES-11(NGK) RC10PYPB4(CHAMPION) PFR5N-11(NGK) RC10YC(CHAMPION) BKR5ES(NGK) RC10YC(CHAMPION) BKR5ES(NGK) Remark
Unleaded
Leaded
1.6/2.0L 2.7L*
2.7L
1.6/2.0L
1.0~1.1 mm (0.039 ~ 0.043 in.)*0.7~0.8 mm (0.028 ~ 0.032 in.)*: leaded one
G050D02A-AAT
To Change the Engine Coolant
The engine coolant should be changed at those
intervals specified in the vehicle maintenance schedule in Section 5.
NOTE: Engine coolant can damage the finish of
your car. If you spill engine coolant on the car, wash it off thoroughly with clean water.
1. Park the car on level ground, set the park- ing brake and remove the radiator cap when cool.
2. Be sure your drain receptacle is in place. Open the drain cock on the radiator. Allowall the engine coolant to drain from thecooling system, then securely close the draincock.
3. Check Section 9 for the capacity of the cooling system in your car. Then, followingthe manufacturer's directions on the enginecoolant container, add the appropriate quan-tity of engine coolant to the radiator.
4. Turn the radiator cap counterclockwise with- out pressing down on it, until it stops. Thisrelieves any pressure remaining in the cool-ing system. And remove the radiator cap bypushing down and turning counterclockwise. Now fill the radiator with clean demineral- ized or distilled water. Continue to add cleandemineralized or distilled water in small quan-tities until the fluid level stays up in theradiator neck. DOHC1.0~1.1 mm (0.039 ~ 0.043 in.)
*0.7~0.8 mm (0.028 ~ 0.032 in.)
* Platinum coated.

DO-IT-YOURSELF MAINTENANCE 6-9
WARNING: It is recommended that the engine be cool
or cold when changing the spark plugs. If the engine is hot, you could burn yourselfon the insulated connector, the spark plugor the engine itself.
4. When preparing to remove the old spark plug, guide the socket down over the spark plug, being careful not to damage the ce-ramic insulator.
5. To remove the old spark plug, turn the wrench handle in a counterclockwise direc-tion.
6. To install the new spark plug, guide the socket down over the spark plug, beingcareful not to damage the ceramic insulator. NOTE: Spark plugs should be tightened firmly. Over- tightening can damage the threads in thealuminum cylinder head. Also, leaving them too loose can cause the spark plug to get very hot and possibly result in damage tothe engine.
7. Replace the cable by pushing the insulated connector directly down onto the electrode.Check to be sure it has snapped into placeand can't fall off.
G060C02GK-GAT
Changing the Spark Plugs
You will find it easier to change spark plugs if
the engine is cold. Always change one sparkplug at a time. This helps avoid getting the wiresmixed up.
1. Remove the engine rocker cover.
NOTE: It is recommended that the spark plugs for
2.7L Engines should be changed by an au- thorized Hyundai dealer.
2. Using a clean cloth, remove any dirt that has accumulated around the base of the spark plug so it cannot fall into the cylinder whenthe spark plug is removed.
3. To remove the spark plug cable, pull straight up on the insulated connector, not the cable.Pulling on the cable may damage the carboncore conductor.
HGK256
HGK258HGK257

INDEX10-3
R Rear Seats
Before Folding the Rear Seats ..................................................... 1-10
Fold down ..................................................................................... 1-10
Rear seat entry ............................................................................. 1-10
Rear Seat Pos itions ....................................................................... 1-9
Rear Window Defroster Switch ......................................................... 1-36
Rear Window Wiper and Switch .. ..................................................... 1-35
SSeat Belts 3-Point type .................................................................................. 1-13
Adjustable height .......................................................................... 1-13
Adjusting your seat belt ................................................................ 1-13
Care of seat belts ......................................................................... 1-12
Precautions ................................................................................... 1-11
Pre-tentioner Seat Belt ................................................................. 1-18
Spark Plugs ........................................................................................ 6-8
Spectacle Case ................................................................................. 1-40
Speedometer ..................................................................................... 1-30
Starting Procedures ............................................................................ 2-3Steering Wheel Free play ...................................................................................... 6-15
Tilt lever ........................................................................................ 1-47
Stereo Radio Operation (H250, H260) ....................................1-65, 1-72
Stereo Sound System ............................................................ 1-63 ~ 1-64Sun Visor .......................................................................................... 1-46
Sunroof .............................................................................................. 1-38
TTachometer ....................................................................................... 1-30
Tail Gate ........................................................................................... 1-45
TCS (Traction control system) .......................................................... 2-10
Theft Alarm System ............................................................................ 1-5
JJump Starting
...................................................................................... 3-1
K
Keys .................................................................................................. 1-2 If you lose your keys .................................................................... 3-10
Positions ......................................................................................... 2-2
L
Light Bulb Replacement .................................................................... 6-20
Lubrication Chart ................................................................................. 9-3
Luggage Net ...................................................................................... 1-47
M Maintenance Intervals Explanation of scheduled maintenance items ....................... 5-5 ~ 5-7
Maintenance under severe usage conditions ................................. 5-4
Scheduled maintenance ................................................................. 5-2
Service requirements ...................................................................... 5-1
Map Light .......................................................................................... 1-40
Mirros Day-night inside rearview ............................................................. 1-42
Outside rearview folding ............................................................... 1-42
Outsde rearview heating .............................................................. 1-41
Multi gauge ........................................................................................ 1-32
OOdometer .......................................................................................... 1-30
PParking Brake ................................................................................... 1-43
Power Steering Fluid Level ............................................................... 6-19

VEHICLE MAINTENANCE REQUIREMENTS
5- 2
SF040A3-E SCHEDULED MAINTENANCEIn order to ensure the continued safety, reliability and longevity of the vehicle, the following maintenance service operations should be performed at the timeor mileage intervals specified.It is recommended that all routine maintenance services are entrusted to a
Hyundai dealer to ensure that the manufacturers recommended proceduresare employed and that only genuine Hyundai replacement parts are used.Incorrect maintenance techniques or the use of non genuine replacement partsmay invalidate the vehicle warranty.
F030B01GK-EAT R : REPLACE I : INSPECT AND, AFTER INSPECTION, CLEAN, ADJUST, REPAIR OR REPLACE IF NECESSARY
ENGINE CONTROL SYSTEM MAINTENANCE
ENGINE OIL & FILTER(SG OR ABOVE) See Note (1)
DRIVE BELT 2.0 DOHC CVVT (ALT, W/PUMP, P/STR'G) 1.6 DOHC / 2.7 V6 (AUTO-TENSIONER, ALT, P/STR'G, A/CON)
FUEL FILTER(MPI TYPE)FLUID LEAKS TIMING BELTVENTILATION HOSE AIR CLEANER FILTER SPARK PLUG(1.6/2.0L)SPARK PLUGS(2.7L) VALVE CLEARENCE (2.0 DOHC CVVT)
NO. DESCRIPTION60 72
R I I I
RR R R
5060
R
I I I
4048
R I
R I
R R
30 36
R I I I I
20 24
R I I
R R
10 12
R
I I
MILES X 1000 MONTHS
Note :
(1) SF OR LOWER: EVERY 6,000 MILES OR 6 MONTHS: "R"
FOR 2.0 L DOHC VVT : SH (API), GF-1 (ILSAC) ABOVE
(2) FOR EVERY 60,000 MILES OR 48 MONTHS, WHICHEVER OCCURS FIRST : "I"
1 2 3 4 56 7 8 9
See Note (2)