"GM Genuine Parts Engine Coolant Temperature Sensors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. When your dashboard temperature gauge behaves erratically or you experience hard starting on freezing winter mornings, a failing sensor might be sending incorrect data to the engine computer. These vital components continuously measure the heat level of your engine coolant, working directly with the engine control module to adjust the air-fuel mixture and ignition timing for smooth idling and consistent power delivery. By accurately monitoring how hot or cold the engine runs, they ensure the radiator cooling fans trigger exactly when needed, preventing overheating during hot summer commutes or while towing heavy loads. Designed to meet rigorous specifications and validated for reliable performance in demanding weather conditions, these sensors help maintain optimal fuel efficiency while keeping your engine protected from damaging temperature spikes. GM Genuine Parts are the true OE parts installed during the production or validated by General Motors for GM vehicles."

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• Provides accurate cold start data on freezing winter mornings
• Essential for safe driving during hot summer commutes
• Supports proper operation of the radiator fan circuit
• Helps maintain optimal fuel efficiency during daily driving
• Keeps the engine protected while towing heavy loads
• Measures the heat level of your engine coolant
• "GM engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle"
• "Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type"
• GM regularly updates production and service part designs to integrate new materials and technologies