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The throttle body regulates the amount of air entering the engine in response to accelerator pedal input, controlling engine speed and power output.

Symptoms include erratic or high idle speeds, stalling, poor acceleration, and the illumination of the check engine light.

Cleaning involves removing the throttle body from the intake manifold, using a throttle body cleaner to remove carbon buildup, and reassembling it. Ensure you follow manufacturer guidelines or consult a professional mechanic.

While not frequently required, cleaning the throttle body every 30,000 to 50,000 miles can prevent performance issues, especially if you notice symptoms like rough idling.