What may cause sputtering during acceleration in a vehicle?

Sputtering during acceleration is often linked to issues with the fuel system, making problems with the fuel pump a primary concern. The fuel pump is responsible for delivering fuel from the tank to the engine. If the fuel pump malfunctions, it can lead to insufficient fuel flow, causing the engine to sputter or hesitate when more power is required during acceleration. This interruption in fuel delivery results in a rough or uneven acceleration, often mistaken for other issues.

In contrast, insufficient tire pressure, faulty headlights, and worn brake pads do not directly affect the engine's performance in terms of fuel delivery or combustion processes. These components may impact safety and handling or visibility, but they are not related to the sputtering sensation one experiences during acceleration. Therefore, identifying the fuel pump as the cause provides a logical explanation aligned with the engine's fuel needs during dynamic operation.