change time Hyundai Elantra 2004 User Guide

6DO-IT-YOURSELF MAINTENANCE
9SPARK PLUGS
G060B02E-AAT
Replacing the Spark Plugs
The spark plugs should be changed at the
intervals specified in the vehicle maintenance
schedule in Section 5 or whenever engine
performance indicates they should be changed.
Symptoms that suggest poor spark plug perfor-
mance include engine misfiring under load, loss
of fuel economy, poor acceleration, etc. When
spark plugs are replaced, always use spark
plugs recommended by Hyundai. The use of
other 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:
* 2.0L SULEV Only.CHAMPION
NGK
RC10PYP4
PFR5N-11
IFR5G-11PLATINUM
PLATINUM
IRIDIUM*
G060A03Y-AAT
Your engine was originally equipped with plati-
num or iridium-tipped spark plugs.
Platinum or iridium-tipped spark plugs will last
longer than conventional type spark plugs and
can be identified by blue lines (platinum only) on
the ceramic shell.
NOTE:Do not clean or regap platinum or iridium-
tipped spark plugs.
G060A01L
0.039~0.043 in.
(1.0~1.1 mm)
!WARNING:The cooling fan is controlled by engine
coolant temperature and may sometimes
operate even when the engine is not run-
ning. 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 engine coolant temperature de-
creases, the fan will automatically shut off.
This is a normal condition.

6DO-IT-YOURSELF MAINTENANCE
10
G060C01S-AAT
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 wires
mixed up.
1. Remove the center cover on the engine
rocker cover.
2. Using a clean cloth, remove any dirt that has
accumulated around the spark plug so it
cannot fall into the cylinder when the 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 carbon
core conductor.
HGK256
!WARNING:It is recommended that the engine be cool
or cold when changing the spark plugs. If
the engine is hot, you could burn yourself
on the insulated connector, the spark plug
or 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 spark plug, turn the wrench
handle in a counterclockwise direction.
6. To replace the new spark plug, guide the
socket down over the spark plug, being
careful not to damage the ceramic insulator.
NOTE:Spark plugs should be tightened firmly.
Over-tightening can damage the threads in
the aluminum cylinder head. Leaving them
too loose can cause the spark plugs to get
very hot and possibly result in damage to
the engine.
7. Replace the cable by pushing the insulated
connector directly down onto the electrode.
Check to be sure it has snapped into place
and can't fall off.
HGK257
HGK258

6DO-IT-YOURSELF MAINTENANCE
11WINDSHIELD WIPER BLADES
!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 engine
oil, gasoline, etc.
G080A02A-AAT
The wiper blades should be carefully inspected
from time to time and cleaned to remove accu-
mulations of road film or other debris. To clean
the wiper blades and arms, use a clean sponge
or cloth with a mild soap or detergent and water.
If the wipers continue to streak or smear the
glass, replace them with Genuine Hyundai
Replacement Parts or their equivalent.
HEF119
CHANGING THE AIR CLEANER
FILTER
G070A01S-AAT
To change the filter, unsnap the clips around the
cover. When this is done, the cover can be lifted
off, the old filter removed and the new filter put
in its place. Genuine Hyundai Replacement
Parts are recommended.
HXDFL011
!CAUTION:Operating your vehicle without a proper air
filter in place can result in excessive engine
wear.

6DO-IT-YOURSELF MAINTENANCE
20
HTB186
G170A01A-AAT
Brake Pedal
With the engine off, press down on the brake
pedal several times to reduce 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 is the brake pedal freeplay.
The freeplay should be within the limits specified
in the illustration. If it is not, have it inspected by
your Hyundai dealer and adjusted or repaired if
necessary.
HXGS508
0.12 ~ 0.31 in.
(3 ~ 8 mm)
CHECKING DRIVE BELTS
G180A01A-AAT
CHECKING BRAKE PEDAL
CLEARANCE
You need a helper to check the brake pedal
clearance. With the engine running, have your
helper press down on the brake pedal several
times and then hold it down with a force of about
110 lbs (50 kg, 490 N). The brake pedal clear-
ance is the distance from the top surface of the
brake pedal to the asphalt sheeting under the
floor mat.
If the brake pedal clearance is not within the
limits specified in the illustration, have it in-
spected by your Hyundai dealer and adjusted
or repaired if necessary.
G180A01L
1.78 in. (45.1 mm)
Drive belts should be checked periodically for
proper tension and adjusted if necessary. At the
same time, belts should be examined for cracks,
wear, fraying or other evidence of deterioration
and replaced if necessary.
Belt routing should also be checked to be sure
there is no interference between the belts and
other parts of the engine. After a belt is replaced,
the new belt should be adjusted again after two
or three weeks to eliminate slack resulting from
initial stretching after use.
G190A01A-AAT
Water Pump Pulley
Generator
Pulley
Crankshaft Pulley0.2 ~ 0.24 in.
(5.1 ~ 6 mm)