2004 Hyundai Elantra Owner's Manual - Page 193

DO-IT-YOURSELF MAINTENANCE 6 9 SPARK PLUGS G060A03Y-AAT G060B02E-AAT ! Replacing the Spark Plugs WARNING: 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 performance 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 performance, radio interference or engine damage. The cooling fan is controlled by engine coolant temperature and may sometimes operate even when the 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 engine coolant temperature decreases, the fan will automatically shut off. This is a normal condition. 0.039~0.043 in. (1.0~1.1 mm) G060A01L NOTE: When replacing the spark plugs, genuine Hyundai replacement parts are recommended. Your engine was originally equipped with platinum 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. Recommended Spark Plugs: CHAMPION NGK PLATINUM PLATINUM IRIDIUM* RC10PYP4 PFR5N-11 IFR5G-11 NOTE: Do not clean or regap platinum or iridiumtipped spark plugs. * 2.0L SULEV Only.