2004 Hyundai Coupe Owner's Manual

DO-IT-YOURSELF MAINTENANCE 6-5
HGK210
G030C01A-AAT
To Check the Oil Level G030D01A-GAT
Adding Oil
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 oilhas reached on the dipstick. It should be be-tween the upper ("FULL") and lower ("LOW")range. If the oil level is close to or below the "L" mark,
add oil until it reaches the "F" 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 "F" and "L" marks is
equal to about 1 liter of oil.HGK211
DOHC V6 DOHC V6
See the lubrication chart on the page 9-3. NOTE:
o The use of a 5W-20 multi grade oil is not recommended for sustained high speed use.
o When replacing or adding the oil, below SAE 10W-30 is recommended. Using a high viscosity oil of SAE 15W-40 and over makes malfunction of CVVTengine when the engine is cool.
HGK259
2.0 L (DOHC CVVT)

DO-IT-YOURSELF MAINTENANCE
6-6 G040A02GK-GAT
CHANGING THE OIL AND FILTER
The engine oil and filter should be changed at those intervals specified in the maintenanceschedule in Section 5. If the car is being drivenin severe conditions, more frequent oil and filterchanges 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 itwarm up until the needle on the coolanttemperature gauge moves above the lowestmark. Turn the engine off and place the gearselector lever in "P" (automatic) or reversegear (manual transaxle).
2. Open the hood and remove the engine oil filler cap.
G040A01GK 3. Slide underneath the car and loosen the
drain plug by turning it counterclockwise with a wrench of the proper size. Be surethat a drain pan is in position to catch the oilas it drains out, then remove the drain plug.
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 retighten by turning it clockwise. Tightening torque :
4.5 ~ 4.0 kgf.m (1.6/2.0L) 4.5 ~ 3.5 kgf.m (2.7L)
5. Remove the oil filter by turning it counter- clockwise with a oil filter wrench of the proper size. A certain amount of oil willcome out when you remove the filter. So besure to have your drain pan in place under-neath it.
6. Install a new oil filter in accordance with the instructions on the carton or on the filteritself. 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 isremoved completely. Lubricate the new gas-ket on the filter with clean engine oil beforeinstallation.
DOHC
G350A01A-GAT
ENGINE OIL CONSUMPTION Function of Engine Oil
Engine oil has the primary function of lubricat-
ing and cooling the inside of the engine. Engine oil consumption
It is normal that an engine should consume
some engine oil while normal driving. The cause of oil consumption in a normal engine are asfollows;
o Engine oil is used to lubricate pistons, piston rings and cylinders.
o A thin film of oil is left on the cylinder wall when a piston moves downwards in the cylinder. High negative pressure generatedduring engine operation sucks some of theoil into the combustion chamber. This oil with some oil of the cylinder wall is burned by the high temperature combustiongases during the combustion process.
o The engine oil consumption is strongly ef- fected by the viscosity and quality of oil,engine rpm and driving condition etc. Moreengine oil may be consumed under severedriving conditions such as high speeds, fre-quent acceleration and deceleration, com-pared to normal driving condition. V6

DO-IT-YOURSELF MAINTENANCE 6-7
-15 (5)
-25 (-13) -35 (-31)-45 (-49)
G050A01A-AAT
CHECKING AND CHANGING THE EN- GINE COOLANT
WARNING: Do not remove the radiator cap when the
engine is hot. When the engine is hot, the engine coolant is under pressure and mayerupt through the opening if the cap isremoved. You could be seriously burned ifyou do not observe this precaution. Do notremove the radiator cap until the radiator iscool to the touch. G050B01A-AAT
Recommended Engine Coolant
Use a high quality ethylene-glycol coolant in a
50/50 mix with water. The engine coolant shouldbe compatible with aluminum engine parts.Additional corrosion inhibitors or additives shouldnot be used. The cooling system must be main-tained with the correct concentration and typeof engine coolant to prevent freezing and corro-sion. Never allow the concentration of anti-freeze to exceed the 60% level or go below the35% level, or damage to the cooling systemmay result. For proper concentration when add-ing or replacing the engine coolant, refer to thefollowing table.
HGK187
35% 40%50%60%
G050C01A-AAT
To Check the Coolant Level The coolant level can be seen on the side of the plastic coolant reservoir. The level of the cool-ant should be between the "LOW" and "FULL"lines on the reservoir when the engine is cool.If the level is below the "LOW" mark, addengine coolant to bring it up between "LOW"and "FULL". If the level is low, inspect forcoolant leaks and recheck the fluid level fre-quently. If the level drops again, visit yourHyundai dealer for an inspection and diagnosisof the reason.
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 containerand taken to a service station for maybereclaimation. Do not pour the oil on theground or put it in with the household trash.
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 yourhands thoroughly with soap and warm wa-ter as soon as possible after handling usedoil.
Ambient
temperature °C ( °F) Engine Coolant concentration
Antifreezesolution Water
65% 60%50%40%

DO-IT-YOURSELF MAINTENANCE
6-8 4. Turn the radiator cap counterclockwise with-
out pressing down on it, until it stops. This relieves 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.
G050D02A-AAT
To Change the Engine Coolant
The engine coolant should be changed at those
intervals specified in the vehicle maintenanceschedule 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.
G050D01A
5. Start the engine, top off the radiator withwater and then add engine coolant to the reservoir until the level is between "L" and"F".
6. Replace the radiator and reservoir caps and check to be sure the drain cocks are fullyclosed 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.
G050D02A

DO-IT-YOURSELF MAINTENANCE 6-9
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 DOHC1.0~1.1 mm (0.039 ~ 0.043 in.)
*0.7~0.8 mm (0.028 ~ 0.032 in.)
* Platinum coated. G060C02GK-GAT
Changing the Spark Plugs
You will find it easier to change spark plugs if
the engine is cold. Always change one spark plug 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

DO-IT-YOURSELF MAINTENANCE
6-10 G070A02GK-AAT
CHANGING THE AIR CLEANER FIL- TER
To change the filter, unsnap the clips around the cover. When this is done, the cover can belifted off, the old filter removed and the new filterput in its place. Genuine Hyundai ReplacementParts are recommended. CAUTION:
o Operating your vehicle without a proper air cleaner filter in place can result in excessive engine wear.
o Be careful that dust or dirt does not enter the air intake, or damage may result.
o When removing the air cleaner filter, be careful that dust or dirt does not enterthe air intake. These may result in dam-age to the air cleaner filter.
HGK213
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 the aluminum 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.
HGK258HGK257

DO-IT-YOURSELF MAINTENANCE 6-11
G090A01A-GAT
FILLING THE WASHER RESERVOIR The washer fluid reservoir supplies fluid to the windshield washer system. A good quality washer fluid should be used to fill the washer reservoir. The fluid level should bechecked more frequently during inclementweather or whenever the washer system is inmore frequent use. The capacity of the washer reservoir is 3.0 liters (3.2 U.S. quarts). CAUTION:
o Radiator antifreeze (engine coolant) should not be used in the washer system because it will damage the car's finish.
o The washer should not be operated if the washer reservoir is empty. This can dam-age the washer fluid pump.
HGK217
G080A02A-AAT WINDSHIELD WIPER BLADES The wiper blades should be carefully inspected from time to time and cleaned to remove accu-mulations of road film or other debris. To cleanthe wiper blades and arms, use a clean spongeor cloth with a mild soap or detergent and water.If the wipers continue to streak or smear theglass, replace them with Genuine HyundaiReplacement Parts or their equivalent. CAUTION:
o Do not operate the wipers on dry glass.
This can result in more rapid wear of the wiper blades and may scratch the glass.
o Keep the blade rubber out of contact with petroleum products such as engineoil, gasoline etc.HEF119
Transaxle lubricant in the manual transaxle should
be checked at those intervals specified in the vehicle maintenance schedule in Section 5. Recommended Oil
Use only HYUNDAI GENUINE PARTS MTF
75W/90 (API GL-4) in the manual transaxle.Manual Transaxle Oil Capacity
5 speed : 2.15L (2.27 U.S. quarts) 6 speed : 2.2L (2.32 U.S. quarts) WARNING: It is always better to check the transaxle oil
level when the engine is cool or cold. If the engine is hot, you should exercise great caution to avoid burning yourself on hot engine or exhaust parts. G100A02GK-GAT
CHECKING THE TRANSAXLE OIL (MANUAL)
G110A01E
Filler plug
Drain plug

DO-IT-YOURSELF MAINTENANCE
6-12 G110D02Y-AAT
To Check the Transaxle Fluid Level
HGK174
Park the car on level ground with the parking brake engaged. When the transaxle fluid levelis checked, the transaxle fluid should be atnormal operating temperature and the engineidling.
G110C02Y-GAT
Transaxle Fluid Capacity
The fluid capacity of the automatic transaxle is 7.8 liters (8.2 U.S. quarts). WARNING: The transaxle fluid level should be checked when the engine is at normal operating tem-perature. This means that the engine, radia-tor, exhaust system etc., are very hot. Exer-cise great care not to burn yourself duringthis procedure.
G100B02A-AAT
To Check the Manual Transaxle Fluid Level
SSA6100B
Park the car on level ground with the engine off.
1. Using a wrench of the correct size, loosen the oil filler plug by turning it counterclock- wise and remove it with your fingers.
2. Use your finger or suitable tool to feel inside the hole. The oil level should be at its bottomedge. If it is not, check for leaks beforeadding oil. To refill the transaxle or bring theoil level up,add oil slowly until it reaches theproper level. Do not overfill.
3. Replace the plug and washer, screw it in with your fingers and then tighten securelywith the wrench. G110A02A-AAT CHECKING THE TRANSAXLE FLUID (AUTOMATIC) Transaxle fluid in the automatic transaxle should be checked at those intervals specified in thevehicle maintenance schedule in Section 5. NOTE: Basically automatic transaxle fluid is red color. As driving distance increases, thefluid color turns darkish red gradually. It isnormal condition and you should not usefluid color as a criterion for replacing thetransaxle fluid. You must replace the automatic transaxle fluid in accordance with intervals specifiedin the vehicle maintenances schedule insection 5. G110B03A-AAT
Recommended Fluid
Your Hyundai automatic transaxle is specially
designed to operate with DIAMOND ATF SP-III or SK ATF SP-III. Damage caused by anonspecified fluid is not covered by your newvehicle limited warranty.