How to Tell if the Throttle Body is Dirty?

[Natasha]

Methods to determine if the throttle body is dirty include: 1. Feeling sluggish acceleration while driving, with less smooth and quick response compared to before, indicating a dirty throttle body; 2. Noticing a significant increase in fuel consumption, excluding issues like vehicle overload or prolonged low-speed driving, which may suggest a dirty throttle body; 3. During routine vehicle maintenance, opening the throttle body inlet for a thorough inspection to check for dirt. The function of the throttle body is to regulate air intake into the engine. After entering the intake pipe, the air mixes with gasoline to form a combustible mixture, which then burns to generate power. Effects of a dirty throttle body include: 1. Rough idling and difficulty starting the engine when cold; 2. Engine stalling after sudden acceleration and throttle release; 3. Increased fuel consumption and engine vibration.