Why is it necessary to clean the throttle body?

[McManuel]

Cleaning the throttle body is essential for the following reasons: 1. The throttle body is one of the critical components of the engine, and the smoothness of vehicle acceleration is closely related to its cleanliness. During engine operation, a small portion of the exhaust gases produced by combustion in the cylinders can pass through the intake valves and intake manifold, forming carbon deposits at the throttle body, which can hinder vehicle acceleration. 2. After air passes through the air filter (especially one that has been in use for an extended period), impurities may remain in the throttle body. Over time, these contaminants accumulate and form deposits at the throttle body, increasing the resistance to throttle opening and closing, leading to issues such as unstable engine idling. Therefore, it is important to clean the throttle body regularly.