What are the symptoms of an engine misfire?

[BarrettLee]

Here is an introduction to the symptoms and causes of an engine misfire: 1. Symptoms of an engine misfire include: unstable vehicle idling, abnormal engine shaking, noticeable power loss, difficulty starting the vehicle, engine stalling easily, and black smoke from the exhaust pipe. 2. Causes of an engine misfire: (1) Severe burning of the contacts in the distributor cap of the ignition system, causing spark jumping; (2) Malfunction of the ignition coil; (3) Wear of the cylinder wires; (4) Carbon buildup in the fuel injector or clogging of the injector filter screen, leading to imprecise injection and atomization; (5) Excessive carbon buildup on the spark plugs.