Do I Need to Clean the Throttle Body When Changing Spark Plugs?

[Clay]

Changing spark plugs does not require cleaning the throttle body, as they belong to different systems. Spark plugs are part of the ignition system, while the throttle body is part of the intake system. Spark plugs are crucial components of a gasoline engine's ignition system, responsible for introducing high-voltage electricity into the combustion chamber, creating a spark across the electrode gap to ignite the air-fuel mixture in the cylinder. Steps for replacing spark plugs: Open the hood, lift the engine's plastic cover, and remove the high-voltage ignition wires. Mark each wire according to its corresponding cylinder 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 thorough cleaning. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, then use the socket to fully tighten it. Reinstall the high-voltage ignition wires in the correct firing order, then secure the cover. Spark plug replacement intervals: Under normal maintenance conditions, spark plugs should be replaced every 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine type, so it's recommended to follow the owner's manual. Here are some general guidelines for maintenance replacement: platinum spark plugs at 40,000 km, standard nickel alloy spark plugs at 20,000 km, and iridium spark plugs at 60,000-80,000 km.