Shop Buick Automotive Sensors. Purchase Buick Engine Coolant Temp Sensor Location. Find Buick Engine Temperature Control Sensor & Buick Engine Sensor Locations. Maintaining the engine sensors of your Buick is pivotal for optimal performance and longevity. Regularly cleaning and inspecting sensors, such as the oxygen sensor, mass airflow sensor, and throttle position sensor, can prevent malfunctions. Look for symptoms like erratic idling, poor fuel efficiency, or a lit check engine light as cues for replacement. When selecting a new sensor, ensure compatibility with your model and opt for OEM-quality materials to guarantee durability. Proper installation is crucial, so either follow a trusted guide or engage a professional to ensure your Buick's engine runs smoothly. Our top-tier selection of sensors is designed to meet or exceed manufacturer specifications, ensuring your vehicle maintains peak efficiency and reliability.