Always allow the engine to cool below 100°F (37°C) and then drain the coolant before removing the Engine Coolant Temperature (ECT) gauge sending unit; otherwise, the heated engine coolant can spray out during removal, causing severe burns.
- Allow the engine to cool below 100°F (37°C) before working on the cooling system.
- Note the anti-theft code and radio presets for the radio.
- Disconnect the negative battery cable.
- Locate the Engine Coolant Temperature (ECT) gauge sending unit.
- Drain the engine coolant until it is just below the level of the sensor into a sealable container.
- Detach the gauge sending unit electrical connection.
- If the sensor is held into the coolant passage with a retaining clip:
- Remove the sensor retaining clip, and pull the sensor straight out of the housing.
- If the sensor is threaded into the coolant passage:
- Loosen the sensor using a crowfoot wrench, a suitable boxed end wrench or a thin-walled 3 / 8 inch drive 12 point deep well socket and breaker bar.