What is the function of a car throttle?

2 Answers
Baker
07/24/25 2:26am
The function of a car throttle is to control the engine's air intake flow, thereby affecting the engine's operating conditions. It is often referred to as the "throat" of the engine. Here is some additional information about the throttle: 1. Consequences of failure: Throttle failure can lead to reduced vehicle power, unstable idling, and in severe cases, it can cause the engine fault light to illuminate, as well as a significant increase in fuel consumption. 2. Causes of failure: Throttle failures are often caused by poor air quality and fuel quality. Carbon deposits generated during gasoline combustion can contaminate the throttle due to negative pressure, preventing it from closing properly and leading to throttle failure.
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TheoMarie
08/10/25 10:04pm
I've been driving for ten years and feel the throttle is like the 'breathing controller' of a car. When I press the accelerator, it opens to let air into the engine, allowing the engine to burn more gasoline for power, making the car accelerate faster; when I release the accelerator, it closes slightly, reducing air intake and slowing down the speed. In daily driving, a dirty throttle can cause sluggish acceleration or unstable idling. Once after driving in the rain, my throttle got carbon buildup, but after cleaning it, performance immediately smoothed out and even saved fuel. It's similar to healthy eating—keeping things clear ensures efficient operation. Regular maintenance, like cleaning every six months, can prevent unexpected failures, improve responsiveness and fuel economy, making driving more reassuring.
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