What are the symptoms of a dirty car throttle body?

[DelErin]

When a car's throttle body becomes dirty, it can cause symptoms such as unstable idling, reduced power, and difficulty starting. Unstable idling: A dirty throttle body leads to variations in the power output of individual cylinders, resulting in an imbalance in cylinder power and causing the car to idle unstably. In such cases, the throttle body should be cleaned or replaced promptly. Reduced power: A dirty throttle body directly affects the accuracy and smoothness of engine air intake. The amount of air entering the combustion chamber significantly decreases, leading to an overly rich air-fuel mixture and reduced ignition energy, which in turn results in decreased car power. The throttle body should be cleaned or replaced promptly in this situation. Difficulty starting: A dirty throttle body may cause errors in the throttle opening, allowing contaminated air to enter the engine combustion chamber, making it difficult to start the car. The throttle body should be cleaned or replaced promptly in this case.