What Causes Engine Misfire in Cars?

[DelRachel]

Engine misfire in cars can be caused by: 1. Poor sealing of pistons, cylinder walls, valves, or valve seats leading to low cylinder pressure and misfire; 2. Severe burning of distributor cap contacts in the ignition system causing misfire; 3. Air leaks in pipes allowing air to enter the cylinders, preventing the engine from functioning properly and resulting in misfire; 4. Excessive carbon buildup due to low spark plug heat range causing spark plug leakage, weak spark, or complete spark plug failure leading to misfire; 5. Clogged fuel injectors due to carbon deposits preventing precise fuel injection and atomization, which can cause injector seizure and engine misfire.