The spark plugs on a 2003 Kia Sportage are located on the top of the engine, underneath the ignition coils. To access the spark plugs, you will need to remove the ignition coils.
Changing Spark Plugs:
1. Gather the necessary tools and parts. You will need a spark plug wrench, a gapping tool, and a new set of spark plugs.
2. Prepare the engine. Turn off the engine and allow it to cool down. Disconnect the negative battery cable to prevent electrical shock.
3. Remove the ignition coils. Use a spark plug wrench to loosen the bolts holding the ignition coils in place. Once the bolts are loose, remove the ignition coils from the spark plug wells.
4. Remove the spark plugs. Use the spark plug wrench to loosen and remove the spark plugs from the cylinder head.
5. Check the spark plugs. Inspect the spark plugs for signs of wear or damage. If the spark plugs are worn or damaged, replace them with new ones.
6. Gap the spark plugs. Use a gapping tool to set the spark plug gap to the manufacturer's specifications.
7. Install the spark plugs. Hand-tighten the spark plugs into the cylinder head. Then, use the spark plug wrench to tighten the spark plugs until they are snug.
8. Reinstall the ignition coils. Place the ignition coils back into the spark plug wells and tighten the bolts to secure them in place.
9. Reconnect the negative battery cable.
10. Start the engine and test drive the vehicle.
Note: If you are not comfortable changing spark plugs yourself, you can have a qualified mechanic do it for you.
