What symptom might suggest an issue with the fuel pump?

A difficulty in starting the engine or a loss of power during acceleration often indicates that the fuel pump may not be delivering adequate fuel pressure or flow to the engine. The fuel pump is responsible for transporting fuel from the tank to the engine at the required pressure for optimal performance. If the fuel pump is failing or malfunctioning, it can lead to insufficient fuel reaching the engine, resulting in sluggish acceleration or a hard start.

When encountering such symptoms, it is vital to check the fuel delivery system as part of the diagnostic process. Other signs may include unusual noises coming from the fuel tank, stalling, or engine misfires, which all further point to potential issues with the fuel pump.

While the other choices may indicate various engine problems, they are typically associated with different systems. Excessive oil consumption is related to lubrication issues, increased exhaust emissions are connected to the fuel-air mixture or exhaust systems, and frequent overheating is usually a sign of cooling system failures. Hence, option B is the most relevant symptom for suspecting a fuel pump issue.