How to Determine if a Car's Spark Plugs Need Replacement

[RemingtonRose]

Methods to determine if a car's spark plugs need replacement: 1. Increased fuel consumption, where fuel cannot be fully burned, resulting in abnormally high fuel usage; 2. The car frequently stalls irregularly at idle or has difficulty restarting; 3. Sluggish acceleration and insufficient power; 4. The air-fuel mixture in the engine cannot be fully burned, leading to excessive exhaust emissions. Spark plugs are a key component in a car engine's ignition system. Every gasoline engine has spark plugs, with one per cylinder. Some high-performance gasoline engines even have two spark plugs per cylinder.