How to Check for Misfiring Cylinders?

[EvaLee]

Misfiring cylinders typically exhibit the following symptoms: 1. Abnormal engine operation or insufficient power. The engine runs unevenly at high, medium, and low speeds with rhythmic shaking, and the muffler emits black smoke and backfires. 2. Misfiring cylinders can lead to increased fuel consumption, black smoke emission, lack of power, reduced horsepower, inability to accelerate, severe shaking, and increased driving noise. Hazards of engine misfiring: 1. Decreased engine speed and power output. 2. Increased fuel consumption and emission pollution. 3. Accelerated wear of moving parts and shortened lubrication oil service intervals.