From my own experience, a rough idle or an engine that stumbles at low speeds often points to the throttle body as a key area to check. The throttle body controls airflow into the engine, and when it gets coated with dirt, carbon buildup, or grime, it can restrict airflow and cause your engine to run unevenly. Cleaning the throttle body is a straightforward maintenance task that can bring immediate improvement. I usually start by removing the air intake hose to access the throttle body. Then, using a throttle body cleaner and a soft brush or cloth, I gently clean the interior parts, paying special attention to the throttle plate edges where most buildup accumulates. It’s important not to force anything, as delicate sensors are nearby. After cleaning, you might notice a more stable idle, smoother acceleration, and overall better throttle response. Regular throttle body maintenance, especially if your car has high mileage or you drive in dusty conditions, helps prevent rough idling and engine hesitation. This small effort can save you from more costly repairs down the road and keep your car running reliably.