What are the symptoms of a faulty throttle?

2 Answers
MacAdriana
07/28/25 8:17pm
Here are the symptoms of a damaged car throttle: 1. Insufficient engine power, poor acceleration performance, and unstable operation. 2. Unstable engine idle speed, persistently high idle speed that does not drop, difficulty in starting the engine, especially during cold starts. 3. Unstable engine idle speed or no idle speed. 4. Difficulty in starting the engine. 5. Black smoke from the car's exhaust pipe and increased fuel consumption. Here is some related information about the throttle: 1. The throttle is a controllable valve used to regulate the entry of air into the engine. After entering the intake pipe, the air mixes with gasoline to form a combustible mixture, which participates in combustion and work. 2. The throttle is one of the most important components in today's electronic fuel injection engine systems. Its upper part connects to the air filter, and the lower part connects to the engine block, making it the throat of the car engine.
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LaStella
08/12/25 1:05am
When I first started driving, I noticed that if the throttle body fails, the most obvious symptoms are a lack of power when stepping on the gas pedal and a delayed response. Sometimes, while waiting at a red light, the idle speed suddenly fluctuates up and down, shaking violently as if the engine is protesting. When accelerating, it feels like the car is dragging its feet, and fuel consumption also spikes sharply. The check engine light occasionally comes on to signal an issue. If ignored, it can lead to stalling or even breaking down in severe cases, which is quite troublesome. I experienced this once myself, and after cleaning or replacing it, the problem was resolved. I recommend everyone pay more attention to these abnormalities in daily driving. After all, safety comes first—don’t wait until you have a problem on the highway to regret it.
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