Locate 02 sensor

google 02 Ford Explorer4.6L V8 coolant temp location for more images


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https://www.justanswer.com/ford/69f8f-ford-explorer-4x4-head-temp-send-location-found.html

The trouble code should tell you which 02 sensor? The 02 sensors are in the exhaust, sensor 1/sensor2, whatever, bank 1/bank2, whatever, before the cat, after the cat. You have several 02 sensors in the exhaust, don't know which one?
You should be able to remove/install with proper size wrench or deep socket. They do make an 02 sensor socket that has that slot in it, not sure if you need that, though.

Usually these are located on the exhaust manifold or just below the exhaust manifold and you should be able to see it in the engine bay. On V6 engines there will be one sensor on each of the 2 exhaust banks.
You will probably need to remove the engine cover to see the sensors on your exhaust.

If someone told you to replace these because you got a particular fault code I would be wary. A decent scan tool and basic diagnostics can show if the 02 sensor is working or not. Some faults often blamed on an 02 sensor are not due to faulty sensors.

02 sensor located on 2001 mitsubishi diamante YouTube

hi there.
see if this link shows you where it is.
locate coolant temp sensor on 02 jag type 3 0 Google Search

P0172 02 sensor is detecting that the system is running too rich. An 02 sensor that is starting to go out will pull this code, but the following will cause the 02 sensor to throw this code as well:

A few things to look at. 1st thing I'd do is clean your throttle body with the battery disconnected. Use sensor safe throttle body cleaner, about $4.

From there, I'd look at your upstream 02 sensor, located on the exhaust manifold on passenger side of engine, very easy. Try and stay away from Bosch if possible.

New fuel filter, clean or replace your MAF sensor located on top of engine next to firewall. Also, probably time to change your spark plugs. I recommend A/C Delco 41-103, will idle better than other brands.

Here this should help. Explorer sensor location

No I can not give you the code number because I did not scan it for you. The Diagnostic Trouble Code will show ( example 02 Sensor Bank 1 sensor 2 ) for the sensor at fault, or something simaller for one of the other 02 sensors. Fore ( example 02 Sensor Bank 2 Sensor 2 ).The parts store that did the scan for you should have given you the particular fault code as well as its location. If you replace one 02 sensor, you should replace all of them. Good Luck and have a good XMASS.

the o2 sensors are located in the exhaust system, theres one before the cat converter and one after,

Are you sure you replaced the right 02 sensor? Some vehicles have up to 4 02 sensors and being the ones that have a seperated duel exhaust system. You will have an 02 sensor located upstream of the catalytic converter and one down stream of the converter so make sure you replaced the right on. If you used a scanner to tell you it was an 02 sensor it should have also told you bank one or bank two which translates to drivers side or passengers side will also tell you up stream or down stream.