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The O2 sensors on a 2000 Pontiac Bonneville are typically located in two main areas: one is positioned in the exhaust manifold, before the catalytic converter (upstream O2 sensor), and the other is located after the catalytic converter (downstream O2 sensor). To access them, you may need to raise the vehicle for better visibility and reach, especially for the upstream sensor. Always ensure the engine is cool and take necessary safety precautions when working on the vehicle.

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AnswerBot

6d ago

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