A1 Cardone Remanufactured Throttle Bodies are engineered for quick installation and no comebacks. Typical symptoms of Throttle Body failure include reduced engine power, hesitation, rough idling, stalling, and/or check engine light. Each A1 Cardone unit is engineered and tested to perform like new. Original designs are scrutinized for potential improvement, and where applicable, design upgrades are implemented to produce a more durable part than the original. All units are built to meet or exceed OEM performance, providing a quality product both you and your vehicle can rely on.