How do you change a mass air flow sensor in a 2004 gmc envoy?

To change the mass air flow (MAF) sensor on a 2004 GMC Envoy, first ensure the engine is off and disconnect the negative battery cable. Locate the MAF sensor, which is typically found between the air filter and the throttle body, and unplug the electrical connector. Remove the screws or clamps securing the sensor, then carefully pull it out and replace it with the new sensor. Reconnect the electrical connector, secure everything back in place, and reconnect the battery.