Where is the spark plug located in a vehicle?
2 Answers
Spark plugs are located at the top of the vehicle's engine. Spark plugs utilize high-voltage discharge to break down the air between electrodes, generating an electric spark to ignite the combustible gas mixture in the combustion chamber, thereby maintaining the engine's operation. The quality of the spark plug directly affects the performance of the car's engine. The main types of spark plugs include: standard spark plugs, insulator-protruding spark plugs, electrode-type spark plugs, seat-type spark plugs, and pole-type spark plugs. Spark plugs require regular maintenance. If the car's engine speed is 1,000 RPM, the spark plug needs to perform 500 ignitions per minute. During maintenance, it is essential to first soften the carbon deposits with gasoline or kerosene, then clean them with a non-metallic brush, and finally dry them with compressed air.
The spark plug in my car is hidden at the top of the engine, specifically in the cylinder head. You can see it by opening the hood and looking inside. Typically, there's one for each cylinder, directly inserted at the top of the cylinder head. When I first bought the car, I was quite puzzled about its location, but later a mechanic demonstrated it to me—it's like a small plug connected to the ignition coil. To access it, you need to remove the cover first. The design is quite reasonable, making it easy to inspect and replace, but it's common for dust or oil to accumulate, which can lead to rough starts or a sudden increase in fuel consumption. I must remind everyone that although it's a small component, it's crucial as it affects the entire engine's performance. Don't try to tamper with it yourself; it's best to have it checked by professionals every 30,000 to 40,000 kilometers. Last time my car was shaking badly, and upon inspection, it turned out to be a spark plug issue. After replacing it, the car ran much smoother.
