Car is hesitating and bucking Inspection
Engine stuttering, jerking, or hesitating under acceleration? A hesitating and bucking inspection identifies clogged fuel injectors, vacuum leaks, failing ignition coils, and bad mass airflow sensors.If there is a sudden interruption in spark delivery—such as a failing ignition coil breaking down under load or a worn spark plug blowing out its arc—the engine suffers an immediate combustion failure on one or more cylinders, causing a harsh, violent bucking motion. Similarly, lean fuel conditions caused by a weak fuel pump,