What are the effects of not replacing spark plugs for a long time?

[VanNatalie]

The consequences of not replacing car spark plugs for a long time include: 1. Difficulty in ignition, easy stalling, insufficient power, weak acceleration, accelerated carbon deposit formation, manifested as weak vehicle performance, slow acceleration when stepping on the throttle, and missing a gear in power; 2. Misfire causing cylinder malfunction (cylinder misfire), manifested as engine shaking, engine fault light turning on, and intermittent exhaust pipe sound with popping noises when listening carefully; 3. Incomplete combustion leading to failure to meet tailpipe emission standards, causing environmental pollution. What are the effects of damaged spark plugs: If spark plugs are damaged, they can directly cause multiple problems such as leakage in the vehicle's ignition system, increased fuel consumption, and reduced power. The main issue is difficulty in ignition, affecting the normal use of the vehicle. Severe spark plug erosion, blistering at the top of the spark plug, damaged or melted electrodes, and erosion all indicate that the spark plug is damaged and should be replaced.