A dirty or clogged fuel filter will likely affect which component of a vehicle?

A dirty or clogged fuel filter will primarily impact the fuel injectors because it plays a critical role in maintaining the cleanliness and quality of the fuel that reaches the engine. The fuel filter is designed to trap contaminants and debris from the fuel, ensuring that only clean fuel flows into the fuel system.

When the filter becomes dirty or clogged, it restricts the flow of fuel, which can lead to inadequate fuel delivery to the injectors. This can result in performance issues such as misfires, rough idling, and reduced acceleration. The injectors rely on a consistent and unobstructed flow of fuel to atomize it properly for efficient combustion in the engine.

While the other components mentioned may be impacted indirectly (e.g., poor engine performance can affect the exhaust system due to incomplete combustion), the primary component that directly experiences issues from a clogged fuel filter is the fuel injectors.