1. Open the hood of your car and locate the engine cover.
2. Remove the engine cover by unclipping the plastic clips that hold it in place.
3. Locate the spark plug wires. They are four black wires that connect to the top of the engine.
4. Use a spark plug wrench to remove the spark plugs.
5. Replace the spark plugs with new ones.
6. Reattach the spark plug wires.
7. Replace the engine cover.
8. Close the hood of your car.