Let the engine cool completely
Disconnect the negative battery cable
Locate the coolant temperature sensor
Place a drain pan under the sensor area
Drain enough coolant to drop below the sensor level
Disconnect the electrical connector from the sensor
Remove any retaining clip, lock, or fastener
Unscrew or pull out the old sensor
Compare the old sensor with the replacement part
Install the new sensor with a new seal or thread sealant if required
Tighten the sensor to the specified torque
Reinstall the retaining clip or fastener
Reconnect the electrical connector
Refill the cooling system with the correct coolant
Bleed air from the cooling system
Reconnect the negative battery cable
Start the engine and check for leaks
Verify the temperature gauge and warning lights operate normally
Top off coolant if needed after the engine cools again