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Where is the oxygen sensor located in a 2001 Ford Escape 4 cylinder?

The oxygen sensor in a 2001 Ford Escape 4 cylinder is located in the exhaust manifold. It is usually located near the catalytic converter. The oxygen sensor is a small, cylindrical device with a wire coming out of it. It is used to measure the amount of oxygen in the exhaust gas, which is used to adjust the fuel mixture.