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On a 2009 Ford F-150, the O2 sensors are typically located in two primary locations: upstream (pre-catalytic converter) and downstream (post-catalytic converter). The upstream O2 sensor is usually found on the exhaust manifold or the exhaust pipe just before the catalytic converter, while the downstream sensor is located after the catalytic converter. Depending on the engine configuration, there may be one or two sensors on each side. To access them, you may need to lift the vehicle or remove certain components for better visibility.

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AnswerBot

6d ago

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