2003 Hyundai Grandeur check engine light

DRIVING YOUR HYUNDAI 2- 21
C190F01Y-GAT Trailer or Vehicle Towing Tips
1. Before towing, check hitch and
safety chain connections as well as proper operation of the trailer run- ning lights, brake lights, and turn signals.
2. Always drive your vehicle at a mod- erate speed (Less than 100 km/h)
3. Trailer towing requires more fuel than normal conditions.
4. To maintain engine braking effi-
ciency and electrical charging per-formance, do not use fifth gear (manual transaxle).
5. Always secure items in the trailer to
prevent load shift while driving.
6. Check the condition and air pres-
sure of all tires on the trailer and your car. Low tire pressure can seriously affect the handling. Also check the spare tire. 10.During your trip, check occasion-
ally to be sure that the load issecure, and that the lights and anytrailer brakes are still working.
11.Avoid jerky starts, sudden accel-
eration or sudden stops.
12.Avoid sharp turns and rapid lane changes.
13.Avoid holding the brake pedal down too long or too frequently. This could cause the brakes to overheat, re- sulting in reduced braking efficien-cy.
14.When going down a hill, shift into a
lower gear and use the engine brak-ing effect. When ascending a long grade, downshift the transaxle to a lowergear and reduce speed to reduce chances of engine overloading and/ or overheating.
15.If you have to stop while going uphill, do not hold the vehicle inplace by pressing on the accelera-tor. This can cause the automatic transaxle to overheat. Use the park- ing brake or footbrake.
7. The vehicle/trailer combination is
more affected by crosswind andbuffeting.When being passed by a large ve- hicle, keep a constant speed and steer straight ahead. If there is toomuch wind buffeting, slow down to get out of the other vehicle's air turbulence.
8. When parking your car and trailer, especially on a hill, be sure to followall the normal precautions. Turnyour front wheel into the curb, set the parking brake firmly, and put the transaxle in 1st or Reverse(manual) or Park (automatic). In addition, place wheel chocks at each of the trailer's tires.
9. If the trailer has electric brakes, start your vehicle and trailer mov-ing, and then apply the trailer brakecontroller by hand to be sure the brakes are working. This lets you check your electrical connection atthe same time.

3- 2 WHAT TO DO IN AN EMERGENCY
D010A01A-AAT IF THE ENGINE WILL NOT START
WARNING:
If the engine will not start, do not push or pull the car to start it. Thiscould result in a collision or cause other damage. In addition, push or pull starting may cause the cata-lytic converter to be overloaded and create a fire hazard. D010B01A-AAT If Engine Doesn't Turn Over or Turns Over Slowly 1. If your car has an automatic
transaxle, be sure the gear selector lever is in "N" or "P" and the emer-gency brake is set.
2. Check the battery connections to be
sure they are clean and tight.
3. Turn on the interior light. If the light dims or goes out when you operatethe starter, the battery is discharged.
4. Check the starter connections to be sure they are securely tightened.
5. Do not push or pull the vehicle to start it. See instructions for "Jump Starting" on the following pages. D010D01A-AAT If Engine Stalls While Driving
1. Reduce your speed gradually, keep-
ing a straight line. Move cautiously off the road to a safe place.
2. Turn on your emergency flashers.
3. Try to start the engine again. If your
vehicle will not start, contact a Hyundai dealer or seek other quali- fied assistance.
D010C01Y-AAT If Engine Turns Over Normally but Does Not Start
1. Check fuel level.
2. With the key in the off position, check all connectors at ignition, coils and spark plugs. Reconnect any that may be disconnected or loose.
3. Check the fuel line in the engine room.
4. If engine still refuses to start, call a
Hyundai dealer or seek other quali- fied assistance.
D010B01L
D020A02A-AAT JUMP STARTING
HXG554J
Dischargedbattery
Booster battery
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WHAT TO DO IN AN EMERGENCY 3- 3
WARNING:
The gas produced by the battery during the jump-start operation is highly explosive. If these instruc- tions are not followed exactly, seri-ous personal injury and damage to the vehicle may occur! If you are not sure how to follow this proce-dure, seek qualified assistance. Automobile batteries contain sul- furic acid. This is poisonous andhighly corrosive. When jump start- ing, wear protective glasses and be careful not to get acid on yourself,your clothing or on the car.
o If you should accidentally get acid on your skin or in your eyes, imme- diately remove any contaminatedclothing and flush the area with clear water for at least 15 minutes. Then promptly obtain medical attention. Ifyou must be transported to an emer- gency facility, continue to apply water to the affected area with a spongeor cloth. o The gas produced by the battery
during the jump-start operation ishighly explosive. Do not smoke orallow a spark or open flame in the vicinity.
o The battery being used to provide the jump start must be 12-volt. If youcannot determine that it is a 12-volt battery, do not attempt to use it forthe jump start.
o To jump start a car with a discharged
battery, follow this procedure ex-actly:
1. If the booster battery is installed in another vehicle, be sure the two vehicles are not touching.
2. Turn off all unnecessary lights and accessories in both vehicles.
3. Attach the clamps of the jumper
cable in the exact order shown in the illustration. That is, first, attach one clamp of the jumper cable to the positive (+) post or cable of thedischarged battery. Then attach the other end of the same cable to the positive (+) post or cable of thebooster battery. Next, using the other cable, attach one clamp to the negative (-) post or cable of the booster battery. Then attach the other end of that cable to a solid metal part of the engine away fromthe battery. Do not connect the cable to any moving part.
4. Start the engine in the car with the booster battery and let it run for afew minutes. This will help to as- sure that the booster battery is fullycharged. During the jumping opera- tion, run the engine in this vehicle at about 2,000 rpm.
5. Start the engine in the car with the discharged battery using the nor-mal starting procedure. After theengine starts, leave the jumper cables connected and let the engine run at fast idle or about 2,000 rpmfor several minutes.
6. Carefully remove the jumper cables
in the reverse order of attachment.
If you do not know why your batterybecame discharged (because the lightswere left on, etc.), have the charging system checked by your Hyundai dealer.!

6. Do-It-Yourself MaintenanceEngine Compartment ..................................................................... 6-2
General Checks .............................................................................. 6-5
Checking the Engine Oil ................................................................ 6-6
Changing the Oil and Filter ........................................................... 6-7
Checking and Changing the Engine Coolant ............................... 6-8
Spark Plugs .................................................................................. 6-10
Changing the Air Cleaner Filter ................................................... 6-11
Checking the Transaxle Oil (Manual) .......................................... 6-13
Checking the Transaxle Fluid (Automatic) .................................. 6-14
Checking the Brakes .................................................................... 6-15
Checking the Clutch Fluid ............................................................ 6-16
Air Conditioning Care ................................................................... 6-17
Changing the Air Filter (For Evaporator and Blower Unit) ......... 6-18
Checking Drive Belts .................................................................... 6-21
Checking and Replacing Fuses ................................................... 6-21
Power Steering Fluid Level .......................................................... 6-24
Headlight Aiming Adjustment ....................................................... 6-24
Replacement of Light Bulbs ......................................................... 6-26
Bulb Wattage ................................................................................ 6-33
Junction Box Description ............................................................. 6-34
6

DO-IT-YOURSELF MAINTENANCE 6- 5
G020A02A-AAT
GENERAL CHECKS Engine Compartment
The following should be checked regu- larly:
o Engine oil level and condition
o Transaxle fluid level and condition
o Brake fluid level
o Clutch fluid level
o Coolant level
o Windshield washer fluid level
o Accessory drive belt condition
o Coolant hose condition
o Fluid leaks (on or below compo- nents)
o Power steering fluid level and con-
dition
o Battery condition
o Air filter condition G020C01A-AAT Vehicle Interior The following should be checked each time when the vehicle is driven:
o Lights 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, includ- ing clutch operation
o Automatic transaxle operation, in- cluding "Park" mechanism opera-tion
o Seat control condition and opera- tion
o Seat belt condition and operation
o Sunvisor operation If you notice anything that does not operate correctly or appears to befunctioning incorrectly, inspect it care- fully and seek assistance from your Hyundai dealer if service is needed.
G020B01A-AAT
Vehicle Exterior
The following should be checked
monthly:
o Overall appearance and condition
o Wheel condition and wheel nut torgue
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- 20 DO-IT-YOURSELF MAINTENANCE
G180A01A-GAT
CHECKING BRAKE PEDAL CLEARANCE
G180A01L
75 mm (2.95 in.)
You need a helper to check the brake pedal clearance. With the engine run- ning, have your helper press down onthe brake pedal several times and then hold it down with a force of about 490 N (50 Kg, 110 lbs). The brakepedal clearance is the distance from the top surface of the brake pedal to the asphalt sheeting under the floormat.If the brake pedal clearance is notwithin the limits specified in the illus-tration, have it inspected by your Hyundai dealer and adjusted or re- paired if necessary.G170A01A-GAT
CHECKING BRAKE PEDAL FREEPLAY
HXGS508
3 ~ 8 mm (0.12 ~ 0.31 in.)
With the engine off, press down onthe brake pedal several times to re- duce the vacuum in the brake booster. Then, using your hand, press down slowly on the brake pedal until you feel a change in resistance. This isthe brake pedal freeplay.The freeplay should be within thelimits specified in the illustration. If it is not, have it inspected by your Hyundai dealer and adjusted or re-paired if necessary.G160A01A-GAT CHECKING CLUTCH PEDAL FREEPLAY
G160A01E
6 ~ 13 mm (0.24 ~ 0.51 in.)
With the engine off, press lightly onthe clutch pedal until you feel a change in resistance. This is the clutch pedalfreeplay. The freeplay should be within the limits specified in the illustration. If it is not, have it inspected by yourHyundai dealer and adjusted or re- paired if necessary.

DO-IT-YOURSELF MAINTENANCE 6- 21
G190A01A-GAT
CHECKING DRIVE BELTS
Drive belts should be checked peri- odically for proper tension and ad- justed if necessary. At the same time, belts should be examined for cracks,wear, fraying or other evidence of deterioration and replaced if neces- sary. Belt routing should also be checked to be sure there is no interference between the belts and other parts ofthe engine. After a belt is replaced, the new belt should be adjusted again after two or three weeks to eliminateslack resulting from initial stretching after use. G140D01L
2.5L
3.0L/3.5L
Power steering pump
Crank shaft pulley A/C pulley
Crank shaft pulley
A/C pulley
Power steering pulley
Generator
G200A01Y-GAT
CHECKING AND REPLACING FUSES Replacing a Fusible Link
A fusible link will melt if the electrical circuits from the battery are ever over- loaded, thus preventing damage tothe entire wiring harness. (This could be caused by a short in the system drawing too much current.) If thisever happens, have a Hyundai dealer determine the cause, repair the sys- tem and replace the fusible link. Thefusible links are located in a under hood junction box for easy inspec- tion. G200A01L
Melted
Good
G200B01Y-GAT Replacing Accessory Fuse
G200B01L
The instrument panel junction box for
the lights and other electrical acces- sories will be found low on the dash- board on the driver's side. Inside in- CAUTION:
When replacing a fusible link, never use anything but a new fusiblelink with the same or lower amper- age rating. Never use a piece of wire or a higher-rated fusible link.This could result in serious dam- age and create a fire hazard.
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DO-IT-YOURSELF MAINTENANCE 6- 23
G210A01A-AAT
CHECKING THE BATTERY
WARNING:
Batteries can be dangerous! When working with batteries, care-
fully observe the following pre- cautions to avoid serious injuries.
The fluid in the battery contains a
strong solution of sulfuric acid, whichis poisonous and highly corrosive. Be careful not to spill it on yourself or thecar. If you do spill battery fluid on yourself, immediately do the follow- ing:
o If battery fluid is on your skin, flush the affected areas with water for at least 15 minutes and then seek medical assistance.
o If battery fluid is in your eyes, rinse out your eyes with water and getmedical assistance as soon as possible. While you are being driven to get medical assistance, continueto rinse your eyes by using a sponge or soft cloth saturated with water. o If you swallow battery fluid, drink a
large quantity of water or milk fol-lowed by milk of magnesia, eat araw egg or drink vegetable oil. Get medical assistance as soon as pos- sible.
While batteries are being charged(either by a battery charger or by the vehicle's generator), they produce explosive gases. Always observethese warnings to prevent injuries from occurring:
o Charge batteries only in a well ven- tilated area.
o Do not permit flames, sparks or smoking in the area.
o Keep children away from the area. G210B01A-AAT Checking the Battery Keep the battery clean. Any evidence of corrosion around the battery posts or terminals should be removed using a solution of household baking sodaand warm water. After the battery terminals are dry, cover them with a light coating of grease.
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G220A01A-AAT
CHECKING ELECTRIC COOL- ING FANS
WARNING:
The cooling fan is controlled by
engine coolant temperature and may sometimes operate even whenthe engine is not running. Use extreme caution when working near the blades of the cooling fan,so that you are not injured by a rotating fan blade. As the coolant temperature decreases the fan willautomatically shut off. This is a normal condition.
G220B01A-AAT
Checking Engine Cooling Fan
The engine cooling fan should come
on automatically if the engine coolanttemperature is high.
G220C01A-AAT
Checking Condenser Cooling Fan
The condenser cooling fan should
come on automatically whenever the air conditioning is in operation.
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