Hyundai XG350 2003 Owner'S Manual Download Page 133

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DO-IT-YOURSELF MAINTENANCE

6-6

G070A02Y-AAT

CHANGING THE AIR CLEANER FIL-

CHANGING THE AIR CLEANER FIL-
TER

TER

G070A01L

G060B02L-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 per-
formance 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:

o When replacing the spark plug, Genuine

When replacing the spark plug, Genuine

When replacing the spark plug, Genuine
Hyundai Replacement Parts are recom-

Hyundai Replacement Parts are recom-

Hyundai Replacement Parts are recom-
mended.

mended.

Recommended Spark Plugs:

Recommended Spark Plugs:
RC10PYP4 (CHAMPION)

RC10PYP4 (CHAMPION)

RC10PYP4 (CHAMPION)
PFR5N-II (NGK)

PFR5N-II (NGK)

o Spark plugs should be tightened firmly.

Spark plugs should be tightened firmly.

Spark plugs should be tightened firmly.
Overtightening can damage the threads

Overtightening can damage the threads

Overtightening can damage the threads
in the aluminum cylinder head. Also, leav-

in the aluminum cylinder head. Also, leav-

in the aluminum cylinder head. Also, leav-
ing them too loose can cause the spark

ing them too loose can cause the spark

ing them too loose can cause the spark
plug to get very hot and posibly result in

plug to get very hot and posibly result in

plug to get very hot and posibly result in
damage to the engine.

damage to the engine.

o It is recommended that the spark plug

It is recommended that the spark plug

It is recommended that the spark plug
should be changed by an authorized

should be changed by an authorized

should be changed by an authorized
Hyundai dealer.

Hyundai dealer.

WARNING:

It is recommended that the engine be cool

It is recommended that the engine be cool
or cold when changing the spark plugs. If

or cold when changing the spark plugs. If

or cold when changing the spark plugs. If
the engine is hot, you could burn yourself

the engine is hot, you could burn yourself

the engine is hot, you could burn yourself
on the insulated connector, the spark plug

on the insulated connector, the spark plug

on the insulated connector, the spark plug
or the engine itself.

or the engine itself.

G060A02Y-AAT

SPARK PLUGS

Your engine was originally equipped with plati-
num-tipped spark plugs.
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

Do not clean or regap platinum-tipped spark
plugs.

plugs.

YN60100A

0.039~0.043in.( 1.0~1.1 mm)

5. Start the engine, top off the radiator with

water and then add coolant to the reservoir
until the level is between "LOW" and "FULL".

6. Replace the radiator and reservoir caps and

check to be sure the drain cocks are fully
closed and not leaking.

WARNING:

The cooling fan is controlled by engine cool-