What is a common symptom of a failing fuel pump?

A common symptom of a failing fuel pump is indeed difficulty starting the engine or stalling. The fuel pump is responsible for delivering fuel from the tank to the engine at the correct pressure and flow rate. When a fuel pump begins to fail, it may not provide enough fuel to maintain the engine’s operation, which can result in hard starting, engine stalling, or sputtering during acceleration. If the engine is not getting the required amount of fuel, it struggles to run smoothly, leading to these symptoms.

In terms of the other options provided, increased tire pressure pertains to the tires themselves and would not be related to fuel delivery issues. Excessive smoking from the exhaust typically indicates a combustion issue related to oil or fuel mixture, rather than a direct failure of the fuel pump. Corroded battery terminals affect electrical connections and the vehicle's starting ability, but do not directly indicate a problem with the fuel system. Understanding these distinctions is key to diagnosing fuel system issues accurately.