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Where are the upstream sensors located?

Updated: 8/20/2019
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11y ago

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In the exhaust between the engine and the catalytic converter.

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Q: Where are the upstream sensors located?
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Where are the oxygen sensor for a 2002 explorer?

There is a total of 4 oxygen sensors the 2 upstream sensors are located right below the exhaust manifold flanges and above the upstream catalytic converter.The 2 downstream sensors is located in the exhaust pipe,right behind the upstream catalyst,and ahead of the main catalyst.


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All O2 sensors are threaded into the exhaust system at various points. Upstream O2 sensors are located before the catalytic converter(s) and downstream O2 sensors are located after the catalytic converter(s).


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There are 2 or 3 oxygen sensors in your exhaust. "Upstream" sensors are located between the exhaust manifolds (headers) and the catalytic converter (usually located on the mid-pipe); "downstream" sensors are located after the catalytic converters. On V6 Mustangs there can either be one or two upstream sensors and usually only one downstream sensor.


O2 sensor location on 2005 mustang?

There are two upstream O2 sensors 4.0L V6 Upstream & Downstream Sensor Locations * Both upstream sensors are screwed into the exhaust pipe right below the exhaust manifold flanges * Both downstream sensors are located in the catalytic converters 4.6L V8 Upstream & Downstream Sensor Locations * The left upstream sensor is screwed into the exhaust manifold right above the manifold flange and the right upstream sensor is screwed into the exhaust pipe right below the exhaust manifold flange * Both downstream sensors are located in the catalytic converters


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Where are oxygen sensors located on a Ford Windstar LX?

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Where are the 02 sensors located in a 2006 Chrysler Town and Country?

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