Are My Fuel Injectors Clogged? Clogged fuel injectors can cause various issues in your vehicle, such as decreased fuel efficiency, engine misfires, rough idling, hesitation during acceleration, and a decrease in overall performance. Determining whether your fuel injectors are clogged requires a proper diagnosis. A few signs that may indicate clogged fuel injectors are rough idling, engine misfires, and hesitation when accelerating. Does Fuel Injectors Affect Gas Mileage? Fuel injectors can significantly affect gas mileage. Fuel injectors are crucial for efficient combustion, and by maintaining clean and properly functioning fuel injectors, you can ensure optimal fuel delivery, combustion, and fuel efficiency. Regular maintenance, such as using high-quality fuel and periodic fuel system cleaning, can help prevent or mitigate these issues. Do My Fuel Injectors Need To Be Replaced? To determine whether your fuel injectors need to be replaced depends on several factors, including their condition, symptoms you are experiencing, and the results of a proper diagnosis. Replacement of fuel injectors can be an expensive procedure because it involves both the cost of the injectors themselves, and the labor fees. If you suspect that you have fuel injector problems, we recommend you stop by, we can assess the situation and provide a professional recommendation based on our thorough diagnosis of your vehicle.