Where are the oxygen sensors on a 2000 Cadillac Eldorado?

On a 2000 Cadillac Eldorado, there are typically two oxygen sensors: one located in the exhaust manifold, upstream of the catalytic converter, and another positioned downstream of the catalytic converter. The upstream sensor monitors the air-fuel mixture, while the downstream sensor checks the catalytic converter's efficiency. To access these sensors, you may need to lift the vehicle and remove any necessary components for better visibility and reach.