Description
213-4777 Engine Coolant Temperature Sensor
Key Features
- Monitors engine coolant temperature to provide critical data to the engine control module.
- Ensures the engine operates within its optimal temperature range for performance and efficiency.
- Triggers high-temperature warnings on the instrument panel.
- Manufactured to original equipment (OE) specifications for fit, form, and function.
- Features a two-terminal electrical connector.
Replaces / Cross-Reference Part Numbers
- ACDelco: 213-4777
- General Motors (GM): 12639899
Compatibility & Fitment
- Designed as a direct-fit original equipment replacement for a wide range of General Motors vehicles.
- Please verify compatibility with your specific year, make, model, and engine before purchase.
When to Replace
- Inaccurate or fluctuating temperature gauge readings.
- Engine overheating or running too cool.
- Illuminated Check Engine Light (CEL) with relevant fault codes.
- Noticeable decrease in fuel economy.
- Difficulty starting the engine, especially when cold.
Installation Tips
- Allow the engine to cool completely before beginning the replacement.
- Partially drain the cooling system to a level below the sensor’s location to minimize coolant loss.
- Clean the sensor’s threaded port before installing the new component.
- Torque the new sensor to the vehicle manufacturer’s specified value.
- After installation, refill and bleed the cooling system according to the service manual.
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