O2 Sensors - How many? Where?

[BTR]

2000 Explorer 4.0L SOHC Job-1 VIN-E 5-Speed Automatic

How many O2 sensors does this truck have? Where is each of the O2 sensors located? The online Ford parts diagram isn't clear about this information,but the online Denso site states that it has a total of 4 O2 sensors.

Thanks.

 

[imp]

2000 Explorer 4.0L SOHC Job-1 VIN-E 5-Speed Automatic

How many O2 sensors does this truck have? Where is each of the O2 sensors located? The online Ford parts diagram isn't clear about this information,but the online Denso site states that it has a total of 4 O2 sensors.

Thanks.

@BTR
Have you looked for them? Location is in exhaust pipes, both sides of engine. Two per side, two exhaust pipes, one for each bank of cylinders on V-6. Two catalytic converters are located, one per pipe, about a foot from the engine itself. All O2 sensors are screwed into the pipes at either end of the cats. They are designated, beginning Right Hand (passenger) side, closest to engine: 1-1, past cat 1-2, Driver Side 2-1 closest to engine, 2-2, past cat. You can't miss 'em! imp

 

[BTR]

Excellent information! Many thanks!