2003 Hyundai Grandeur check engine

DO-IT-YOURSELF MAINTENANCE 6- 17
G140A01A-AAT
AIR CONDITIONING CARE Keeping the Condenser Clean
The air conditioner condenser (and engine radiator) should be checkedperiodically for accumulation of dirt, dead insects, leaves, etc. These can interfere with maximum cooling effi-ciency. When removing such accu- mulations, brush or hose them away carefully to avoid bending the coolingfans. G140B01A-AAT
Checking the Air Conditioning Operation
1. Start the engine and let it run at
fast idle for several minutes with the air conditioning set at the maxi-mum cold setting.
2. If the air coming out of the in-dash
vents is not cold, have the air con-ditioning system inspected by your Hyundai dealer. G140C01A-AAT Lubrication To lubricate the compressor and the seals in the system, the air condition-ing should be run for at least 10 minutes each week. This is particu- larly important during cool weatherwhen the air conditioning system is not otherwise in use.CAUTION:
Running the air conditioning sys- tem for extended periods of time with a low refrigerant level may damage the compressor.
G130B02A-AAT To Replace the Fluid Recommended brake fluid conform- ing to DOT 3 or DOT 4 specification should be used. The reservoir cap must be fully tightened to avoid con-tamination from foreign matter or moisture. NOTE: Do not allow any other liquids to contaminate the brake fluid. Sealdamage will result.
WARNING:
Use caution when handling brakefluid. It can damage your vision ifyou get it in your eyes. It will also damage your vehicle's paint if spilled on it and not removed im-mediately.
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6- 18 DO-IT-YOURSELF MAINTENANCE
G145A02L-GAT
CHANGING THE AIR FILTER (For Evaporator and Blower Unit)
The air filter is located in front of the
evaporator unit behind the glove box. It helps to decrease pollutants from
entering the car and to filter the air.
G145A01L
1. Open the glove box. Lower it down by pushing the both sides of the glove box inward.
3. Lower the glove box down com-pletely. G145A02L
2. Lower the glove box down after
taking out the damper strap fromthe hole.
B760A08L
G140D01S-GAT Checking the Compressor Drive Belt When the air conditioning is being used regularly, the compressor drive belt tension should be checked at least once a month. To check the drive belt tension, press down on the belt halfway between the engine crankshaft and compressorpulleys. Pressing with your finger, you should not be able to deflect this belt anymore than 8.0 mm. If you have
the instruments 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 adjusted by your Hyundai dealer. 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

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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6- 24 DO-IT-YOURSELF MAINTENANCE
G240A01A-AAT
POWER STEERING HOSES
It is suggested that you check the power steering hose connections forfluid leakage at regular intervals.The power steering hoses should bereplaced if there is severe surface cracking, scuffing or worn spots. De- terioration of the hose could causepremature failure.
G230A03A-GAT POWER STEERING FLUID LEVEL
HXG2006
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 certain that the power steering fluid level is betweenthe "MAX" and "MIN" level markings on the fluid reservoir. NOTE: Grinding noise from the power steering pump may be heard im-mediately after the engine is started in extremely cold conditions (be- low - 20°C). In this case, if the noise stops during warm up, there is no abnormal function in the sys- tem. This is due to a power steer-ing fluid characteristic in extremely cold conditions.
Recommended Fluid Use PSF-3 type fluid. NOTE: Do not start the engine when the
power steering oil reservoir is empty.
G290A02L-GAT
HEADLIGHT AIMING ADJUST- MENT
HID Type (If installed)
WARNING:
If you need headlight aiming ad- justment, have your vehicle in- spected by your Hyundai Dealer. Don't attempt to replace or inspect the HID headlight bulb to prevent danger of an electric shock.
Vertical Aiming HorizontalAiming
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G290A02L
General Type

DO-IT-YOURSELF MAINTENANCE 6- 25
Before performing aiming adjustment,
make sure of the following.
1. Keep all tires inflated to the correct
pressure.
2. Place the vehicle on level ground
and press the front bumper & rear bumper down several times. Place the vehicle at a distance of 3 m (118 in.) from the test wall.
3. See that the vehicle is unloaded (except for full levels of coolant,engine oil and fuel, and spare tire,jack, and tools). Have the driver or equivalent weight placed in driver's seat.
4. Clean the head light lenses and
turn on the headlights (low beam).
5. Open the hood.
6. Draw the vertical line (through the center of each headlight) and the horizontal line (through the center of each headlight) on the aimingscreen. And then, draw a parallel line at 30 mm (1.18 in.) under the horizontal line.
G290B02L-GAT
Adjustment After Headlight As- sembly Replacement
G290B01L
LW
H
H Cut-off line
Ground line
If the vehicle has had front body
repair and the headlight assembly has been replaced, the headlight aim- ing should be checked using an aim-ing screen as shown in the illustra- tion. Turn on the headlight switch. (Low Beam Position)
"P"
Horizontal line
30mm (1.18 in.) Vertical line
7. Adjust each cut-off line of the low
beam to the parallel line with a phillips screwdriver - VERTICALAIMING.
8. Adjust each cut-off line of the low
beam to each vertical line with a phillips screwdriver - HORIZON- TAL AIMING. 1. Adjust headlights so that main axis
of light is parallel to center line ofthe body and is aligned with point"P" shown in the illustration.
2. Dotted lines in the illustration show the center of headlights.
SPECIFICATIONS: "H"Horizontal center line of headlightsfrom groundGeneral type: 634 mm (24.96 in.) HID type: 628 mm (24.72 in.) "W" Distance between each headlightcenter: 1,240 mm (48.8 in.) "L" Distance between the headlightsand the wall that the lights aretested against : 3,000 mm (118.11 in.)

INDEX 10- 3
D Defrosting / Defogging .............................................. 1-83
Door Door locks ................................................................ 1-6
Door courtesy light ................................................. 1-71
Locking and unlocking front doors with a key ......... 1-6
Drink Holder .................................................. 1-57 ~ 1-58
Drive Belts ...................................................... 6-18, 6-21
Driving Economical driving ..................................... 2-14 ~ 2-15
Smooth cornering ................................................... 2-15
Winter driving ......................................................... 2-16
E Emission Control System ................................. 7-1 ~ 7-3
Engine
Before starting the engi ne ....................................... 2-3
Compartment ................................................... 6-1~6-3
Coolant ......................................................... 6-8 ~ 6-10
Coolant temperature gauge ................................... 1-46
If the engine overheats ............................................ 3-4
Number .................................................................... 8-2
Oil ............................................................................. 6-6
Starting ..................................................................... 2-4
Engine Exhaust Can Be Dangerous ........................... 2-2F
Fan Speed Control .......................................... 1-79, 1-88 Fog Light
Front ....................................................................... 1-48
Rear ........................................................... 1-48 ~ 1-49
Front Seats
Adjustable front seats ............................................ 1-11
Adjustable headrests .............................................. 1-13
Adjusting seat forward and rearward ......... 1-11 ~ 1-12
Adjusting seatback angle .............. .........................1-12
Lumbar support control ............... ........................... 1-13
Seat cushion height adjustment............................ 1-14
Seat warmer ........................................................... 1-17
Fuel
Capacity ................................................................... 9-2
Gauge .................................................................... 1-46
recommendations ..................................................... 1-2
Fuel Filler Lid
Remote release ...................................................... 1-68
Manual ................................................................... 1-68
Fuses ............................................................ 6-21 ~ 6-22 G General Checks .......................................................... 6-5
Glove Box ................................................................. 1-62