What can clogged fuel injectors cause in an engine?

Clogged fuel injectors can significantly disrupt the proper functioning of an engine. When injectors are clogged, they cannot deliver the optimal amount of fuel to the combustion chamber. This can lead to an uneven air-fuel mixture, which is essential for smooth engine operation. As a result, the engine may experience rough idling, misfires, or a decrease in overall performance. The engine might vibrate or run unevenly, which passengers can easily notice.

In contrast, increased fuel efficiency would typically be associated with smoothly operating injectors that ensure a balanced fuel delivery. Overheating of the brakes and a spongy brake pedal are unrelated issues, primarily concerning the brake system rather than the fuel delivery system.