How often should the throttle body and fuel injectors be cleaned?
2 Answers
Under normal vehicle usage, the throttle body generally requires cleaning approximately every 20,000 kilometers. As for fuel injectors, they do not need cleaning unless there are abnormalities, or they can be cleaned every 50,000 to 80,000 kilometers. If the vehicle is used in an area with poor environmental quality and a high concentration of dust particles in the air, it is recommended to clean them about 1,000 kilometers earlier. Below are some benefits of cleaning the throttle body and fuel injectors: 1. Removes carbon deposits, improves air intake and fuel injection precision, enhances fuel efficiency, and extends engine life. 2. The engine runs more smoothly, fuel consumption decreases, and exhaust emissions are reduced.
As someone who has worked in the auto repair industry for over a decade, I frequently handle tasks like cleaning fuel injectors and throttle bodies. On average, cleaning fuel injectors takes about 30 to 60 minutes, mainly because they're tucked away in a hard-to-reach spot, making disassembly and cleaning more time-consuming. The throttle body, located at the front of the engine, usually takes about 15 to 30 minutes to clean. The total time is around 40 minutes to an hour, but it can take longer if there's severe carbon buildup. Why is it recommended to clean them every 20,000 kilometers? Because excessive carbon deposits can affect fuel injection and air intake, leading to increased fuel consumption and engine vibration. It's best to leave this job to professional shops—they use specialized tools to avoid damaging components. Don’t underestimate this maintenance task; timely cleaning can save fuel, reduce costs, and lower the risk of engine issues.
