How often should the spark plugs be replaced in a Nissan Sylphy?
2 Answers
Nissan Sylphy spark plugs should be replaced every 40,000 kilometers. The spark plug is a crucial component of a gasoline engine's ignition system. It introduces high-voltage electricity into the combustion chamber, causing it to jump the electrode gap and generate a spark, thereby igniting the combustible air-fuel mixture in the cylinder. If the spark plug is damaged, it can directly lead to issues such as ignition system leakage, increased fuel consumption, reduced power, and most notably, difficulty in starting the engine, affecting the vehicle's normal operation. Severe spark plug erosion, blistering at the top, damage, or melted electrodes all indicate that the spark plug is damaged and should be replaced. Steps for replacing spark plugs: Open the hood, lift the engine's plastic cover, and remove the high-voltage ignition 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 external debris like leaves or dust and ensure everything is cleaned thoroughly. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, and then use the socket to tighten it further. Reinstall the high-voltage ignition wires in the firing order, and then secure the cover.
The replacement interval for Nissan Sylphy's spark plugs, as I heard from a mechanic, is generally recommended every 50,000 to 60,000 kilometers. My Sylphy has nearly reached 60,000 kilometers, and I just had them replaced last week. Worn-out spark plugs can affect ignition, leading to increased fuel consumption or engine vibration. This time, I opted for platinum spark plugs, which are said to last longer. It's advisable to check them during every maintenance service, such as inspecting the ignition coils for any issues. The Sylphy owner's manual also recommends this mileage interval. If you frequently drive short distances or operate in high-temperature areas, replacing them at 45,000 kilometers might be safer. In short, don't delay too long to avoid minor issues turning into major repairs, which could compromise driving safety and cost more money.
