It is necessary to replace spark plugs at 20,000 kilometers. Spark plugs are not actually classified as automotive parts but rather as part of vehicle maintenance, similar to engine oil, oil filters, and brake pads. They have a specific service life, and exceeding the manufacturer's recommended lifespan can lead to poor ignition, increased fuel consumption, and reduced power. Effects of damaged spark plugs: If spark plugs are damaged, they can directly cause issues such as leakage in the vehicle's ignition system, increased fuel consumption, and reduced power. The most significant problem is difficulty in ignition, which affects the normal operation of the vehicle. Severe spark plug erosion, blistering at the top, electrode damage or melting, and burning all indicate that the spark plug is damaged and should be replaced. Steps to replace spark plugs: Open the hood, lift the plastic cover of the engine, and remove the high-voltage distributor wires. Mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. While removing them, check for any external debris like leaves or dust and ensure they are cleaned thoroughly. Place the new spark plugs into the spark plug holes, hand-tighten them a few turns, and then use the socket to tighten them further. Reinstall the high-voltage distributor wires in the correct firing order and secure the cover.
