How do you change O2 sensors on V6 2001 tracker?

To change the O2 sensors on a 2001 Chevrolet Tracker with a V6 engine, first ensure the vehicle is turned off and cool. Locate the O2 sensors, typically positioned near the exhaust manifold and downstream in the exhaust system. Disconnect the electrical connectors and use an O2 sensor socket or wrench to unscrew the old sensors. Install the new sensors by threading them in and reconnecting the electrical connectors, ensuring everything is secure before starting the vehicle.