How do you replace the coolant temperature sensor on a 2004 Malibu?

To replace the coolant temperature sensor on a 2004 Malibu, first, disconnect the negative battery cable to prevent electrical issues. Locate the sensor, typically found near the engine block or thermostat housing, and unplug the electrical connector. Use a socket wrench to remove the old sensor, then install the new sensor by threading it in place, and reconnect the electrical connector. Finally, reconnect the battery cable and check for any leaks or issues.