2003 Hyundai Coupe engine

DO-IT-YOURSELF MAINTENANCE
6-14
G140D01S-GAT
Checking the Compressor Drive Belt
When the air conditioning is being used regular- ly, the compressor drive belt tension should bechecked at least once a month. To check the drive belt tension, press down on the belt halfway between the engine crankshaftand compressor pulleys. Pressing with yourfinger, you should not be able to deflect this beltanymore than 8.0 mm. If you have the instru-ments to check it with a force of 98N (22 lb.),the deflection should be approx. 8.0 mm (0.315inches). If the belt is too loose, have it adjustedby your Hyundai dealer. A/C
CRANK PULLEY
TENSION PULLEY 8mm (0.315 in.)
G140D01GK
V6
DOHC
Auto tensioner
Eng.pulley COMP
G140B01A-AAT
Checking the Air Conditioning Opera- tion
1. Start the engine and let it run at fast idle for
several minutes with the air conditioning set at the maximum cold setting.
2. If the air coming out of the in-dash vents is not cold, have the air conditioning systeminspected by your Hyundai dealer.
CAUTION: Running the air conditioning system for extended periods of time with a low refriger-ant level may damage the compressor. G140C01A-AAT
Lubrication To lubricate the compressor and the seals in the system, the air conditioning should be runfor at least 10 minutes each week. This isparticularly important during cool weather whenthe air conditioning system is not otherwise inuse.
G130B02A-AAT
To Replace the Fluid
Recommended brake fluid conforming to DOT
3 or DOT 4 specification should be used. Thereservoir cap must be fully tightened to avoidcontamination from foreign matter or moisture.
NOTE: Do not allow any other liquids to contami-
nate the brake fluid. Seal damage will result.
WARNING:Use caution when handling brake fluid. It
can damage your vision if you get it in your eyes. It will also damage your vehicle's paintif spilled on it and not removed immediately.
G140A01A-AAT
AIR CONDITIONING CARE Keeping the Condenser Clean
The air conditioning condenser (and engine
radiator) should be checked periodically for accumulation of dirt, dead insects, leaves, etc.These can interfere with maximum cooling effi-ciency. When removing such accumulations,brush or hose them away carefully to avoidbending the cooling fans.

DO-IT-YOURSELF MAINTENANCE
6-16 G180A01A-GAT CHECKING BRAKE PEDAL CLEARANCE You need a helper to check the brake pedal clearance. With the engine running, have yourhelper press down on the brake pedal severaltimes and then hold it down with a force of about490N (50 kg, 110 lbs). The brake pedal clear-ance is the distance from the top surface of thebrake pedal to the asphalt sheeting under thefloor mat. If the brake pedal clearance is notwithin the limits specified in the illustration, haveit inspected by your Hyundai dealer and adjust-ed or repaired if necessary.
SSA6180A
45.1 mm (1.78 in.)
G170A01A-GAT
CHECKING BRAKE PEDAL FREE-PLAY
With the engine off, press down on the brake pedal several times to reduce the vacuum in thebrake booster. Then, using your hand, press down slowly on the brake pedal until you feel a change inresistance. This is the brake pedal freeplay.The freeplay should be within the limits speci-fied in the illustration. If it is not, have it inspect-ed by your Hyundai dealer and adjusted orrepaired if necessary.
SSA6170A
3 ~ 8 mm
(0.12 ~ 0.31 in.)
G160A01A-GAT
CHECKING CLUTCH PEDAL FREE-PLAY
With the engine off, press lightly on the clutch pedal until you feel a change in resistance. Thisis the clutch pedal freeplay. The freeplay shouldbe within the limits specified in the illustration. Ifit is not, have it inspected by your Hyundaidealer and adjusted or repaired if necessary.
SSA6160A
6 ~ 13 mm (0.24 ~ 0.51 in.)

DO-IT-YOURSELF MAINTENANCE 6-17
G200B02A-AAT
Replacing Accessory Fuse The fuse box for the lights and other electrical accessories will be found low on the dashboardon the driver's side. Inside the box you will find alist showing the circuits protected by each fuse. If any of your car's lights or other electrical
accessories stop working, a blown fuse couldbe the reason. If the fuse has burned out, youwill see that the metal strip inside the fuse hasburned through. If you suspect a blown fuse,follow this procedure:
1. Turn off the ignition and all other switches.
2. Open the fuse box and examine each fuse. Remove each fuse by pulling it toward you (a small "fuse puller" tool is contained in thefuse box to simplify this operation).
3. Be sure to check all other fuses even if you find one that appears to have burned out.
HGK185
G200A01A-AAT
CHECKING AND REPLACING FUSES Replacing a Fusible Link
A fusible link will melt if the electrical circuits
from the battery are ever overloaded, thus pre- venting damage to the entire wiring harness.(This could be caused by a short in the systemdrawing too much current.) If this ever happens,have a Hyundai dealer determine the cause,repair the system and replace the fusible link.The fusible links are located in a relay box foreasy inspection.
CAUTION: When replacing a fusible link, never use
anything but a new fusible link with the same or lower amperage rating. Never use apiece of wire or a higher-rated fusible link.This could result in serious damage andcreate a fire hazard.
AS60310A
Good
Bad
G190A01A-GAT
CHECKING DRIVE BELTS
Drive belts should be checked periodically for proper tension and adjusted if necessary. At thesame time, belts should be examined for cracks,wear, fraying or other evidence of deteriorationand replaced if necessary.Belt routing should also be checked to be surethere is no interference between the belts andother parts of the engine. After a belt is re-placed, the new belt should be adjusted againafter two or three weeks to eliminate slackresulting from initial stretching after use.
G190A01GK
V6
DOHC
Water Pump Pulley
Generator Pulley
Crankshaft Pulley 5.1~6 mm (0.2~0.24 in.)
Power steering
Auto tensioner
GeneratorEng.pulleyCOMP

DO-IT-YOURSELF MAINTENANCE 6-19
G240A01A-AAT
POWER STEERING HOSES It is suggested that you check the power steer-
ing hose connections for fluid leakage daily. The power steering hoses should be replaced ifthere is severe surface cracking, pulling, scuff-ing or worn spots. Deterioration of the hosecould cause premature failure. G250A01A-AAT
FOR MORE INFORMATION ABOUT YOUR HYUNDAI
If you desire additional information about main- taining and servicing your Hyundai, you maypurchase a factory Shop Manual at your Hyundaidealer's parts department. This is the samemanual used by dealership technicians andwhile it is highly technical it can be useful inobtaining a better understanding of your carand how it works.
G230A03A-GAT
POWER STEERING FLUID LEVEL
The power steering fluid level should be checked
regularly.
To check the power steering fluid level, be sure
the ignition is "OFF", then check to make cer-tain that the power steering fluid level is be-tween the "MAX" and "MIN" level markings onthe fluid reservoir.
NOTE: Grinding noise from the power steering
pump may be heard immediately after the engine is started in extremely cold condi-tions (below - 20°F). If the noise stops dur-
HGK214
G220C01A-AAT
Checking Condenser Cooling Fan
The condenser coolant fan should come on
automatically whenever the air conditioning is in operation. ing warm up, there is no abnormal functionin the system. It is due to a power steeringfluid characteristic in extremely cold condi-tions. Recommended Fluid Use PSF-3 type fluid NOTE: Do not start the engine when the power steering oil reservoir is empty.
G210B01A-AAT
Checking the Battery Keep the battery clean. Any evidence of corro-
sion around the battery posts or terminals shouldbe removed using a solution of household bak-ing soda and warm water. After the batteryterminals are dry, cover them with a light coat-ing of grease.
G220A01A-AAT
CHECKING ELECTRIC COOLING FANS 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 cool-ant temperature decreases the fan will auto-matically shut off. This is a normal condi-tion.
G220B01A-AAT
Checking Engine Cooling Fan The engine coolant fan should come on auto-
matically if the engine coolant temperature ishigh.
o Charge batteries only in a well ventilated
area.
o Do not permit flames, sparks or smoking in the area.
o Keep children away from the area.

DO-IT-YOURSELF MAINTENANCE 6-21
SPECIFICATION:
"H" Horizontal center line of headlights from ground:Low Beam: 679mm (26.7 in.)High Beam: 672mm (26.5 in.) "W" Distance between each headlight center :Low Beam: 1,202mm (47.3 in.)High Beam: 966mm (38.0 in.) "L" Distance between the headlights and the wall
that the lights are tested against : 3,000 mm (118 in.)
G290B01GK-GAT
Adjustment After Headlight Assembly Replacement
G290B02Y
Vertical line
Cut-off line Ground line
Horizontal line
LW
H
H "P"30 mm ( 1.18 in.)
If the vehicle has had front body repair and the
headlight assembly has been replaced, the headlight aiming should be checked using anaiming screen as shown in the illustration. Turnon the headlight switch.
1. Adjust headlights so that main axis of light is parallel to center line of the body and isaligned with point "P" shown in the illustra-tion.
2. Dotted lines in the illustration show the cen- ter of headlights.
1. Keep all tires inflated to the correct pres-
sure.
2. Place the vehicle on level ground and press the front bumper & rear bumper down sev-eral times. Place vehicle at a distance of 3m(118 in.) from the test wall.
3. See that the vehicle is unloaded (except for full levels of coolant, engine oil and fuel, andspare tire, jack, and tools).
4. Clean the head light lenses and turn on the headlights.
5. Open the hood.
6. Draw the vertical line (through the center of each headlight beam pattern) and the hori-zontal line (through the center of each head-light beam pattern) on the aiming screen. And then, draw a parallel line at 30 mm (1.18 in.) under the horizontal line.
7. Adjust each cut-off line of the low beam to the parallel line with a phillips screwdriver -VERTICAL AIMING.
8. Adjust each cut-off line of the low beam to each vertical line with a phillips screwdriver- HORIZONTAL AIMING.

DO-IT-YOURSELF MAINTENANCE 6-23
G200C01GK-GAT
FUSE PANEL DESCRIPTION Engine Compartment
HGK205-EPROTECTED COMPONENTS
Generator Generator Condenser Fan Radiator FanEngine Control, ECM. ATM ControlIgnition, Start RelayABSABS Blower InjectorO 2 Sensor, ECM
DRL
Front Fog Light TCM, ECM
Horn. A/ConditionerHead Light (High)Head Light (LOW)
FUSE RATING
120A50A30A 30A 30A30A30A30A30A 15A 10A15A15A10A15A 15A 15A
DESCRIPTION
BATTBATT
COND RADECU
IGN
ABS 1ABS 2
BLOWER INJ
SNSR DRL
F/FOG ECU
HORN,A/CON H/LP (H1)
H/LP (LO)
NOTE:
Not all fuse panel descriptions in this manual may be applicable to your vehicle. It is accurate at the time of printing. When you inspect the fuse
box on your vehicle, refer to the fuse box label.
If installed

EMISSION CONTROL SYSTEMS 7-1
7. EMISSION
CONTROL SYSTEMS
H010B01F-GAT
1. Crankcase Emission Control Sys-
tem
The positive crankcase ventilation system is
employed to prevent air pollution caused by H010A01A-GAT
EMISSION CONTROL SYSTEMS (If Installed)
Your Hyundai is equipped with an emission
control system to meet all requirements of the Emission prohibition rules of your province.
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 thismanual. H010C01F-GAT
2. Evaporative Emission Control Sys-
tem (If Installed)
The evaporative emission control system is
designed to prevent fuel vapors from escapinginto the atmosphere. Canister
While the engine is inoperative, fuel vapors
generated inside the fuel tank are absorbed and stored in the canister. When the engine is
running, the fuel vapors absorbed in the canis-ter are drawn into the induction system throughthe purge control solenoid valve. Purge Control Solenoid Valve
The purge control solenoid valve is controlled
by the ECM; when the engine coolant tempera- ture is low, and during idling, it closes, so that
evaporated fuel is not taken into the engine.After engine warm-up, during ordinary driving, itopens so as to introduce evaporated fuel to theengine. H010D01A-AAT
3. Exhaust Emission Control System
The exhaust emission control system is a high-
ly effective system which controls exhaust emis-sions while maintaining good vehicleperformace.
H020A01A-GAT
CATALYTIC CONVERTER (If Installed)
Catalytic Converter
SSA7020A
The catalytic converter is part of the exhaust
emission control system. Its purpose is to re- move certain engine emission products fromthe engine's exhaust. It looks something like amuffler and is located underneath the car in theexhaust system.
blow-by gases being emitted from the crank-
case. This system supplies fresh air to the
crankcase through the air cleaner. Inside thecrankcase, the fresh air mixes with blow-bygases, then passes through the PCV valve intothe induction system.
7

7-2EMISSION CONTROL SYSTEMS
H020B01A-GAT
About the Catalytic Converter
Exhaust gases passing through the catalytic
converter cause it to operate at very high tem- peratures. As a result, the introduction of largeamounts of unburned gasoline may cause it tooverheat and create a fire hazard. This can beavoided by observing the following:
o Use unleaded fuel only.
o Maintain your engine in good condition. Ex- tremely high converter temperatures can result from improper operation of the electri-cal, ignition or fuel injection systems.
o If your engine stalls, pings, knocks, or is hard to start, take your car to your Hyundaidealer as soon as possible and have thedifficulty corrected.
o Avoid driving with a very low fuel level. If your run out of gasoline, it could cause theengine to misfire and result in excessiveloading of the catalytic converter.
o Avoid idling the engine for periods longer than 10 minutes.
o Your Hyundai should not be either pushed or pulled to get it started. This can cause thecatalytic converter to overload.
o Take care not to stop your Hyundai over any combustible material such as grass, paper,leaves or rags. As these materials couldcome in contact with the catalytic converterand could cause a fire. o Do not touch the catalytic converter or any
other part of the exhaust system while theengine is running as it is very hot and couldresult in burns.
o Remember that your Hyundai dealer is your best source of assistance.