There are 4 sensors, though not all of them are technically called "oxygen sensors. There are two that are upstream of the catalytic converters, one on each bank. Then, there are two more, one after each catalytic converter, that are oxygen sensors, but officially they are called catalyst monitors, because that is the job they are assigned to do. To recap, the two before the cats (or upstream), are oxygen sensors, and the two after the cats (or downstream) are catalyst moniters. Although all 4 of them are oxygen sensors, their titles are different.
According to my Haynes Explorer Repair Manual : A 1997 Ford Explorer , 5.0 liter V8 engine has ( a total of 4 oxygen sensors )
On a 1995 Ford Explorer : There are ( 2 ) oxygen sensors ( I believe there is one sensor in the outlet of each exhaust manifold )
My 1995 Ford Explorer with 4.0 L OHV has 2 oxygen sensors (Helpfull)
That would depend on what year of Ford Explorer and which engine you have ( my 1995 Ford Explorer with the 4.0 liter OHV , V6 engine has ( 2 oxygen sensors )
there are 4 o2 sensors
It has ( one oxygen sensor ) on the 1991 and 1992 Ford Explorers
There are several O2 sensors on that vehicle and they are all threaded into the exhaust system at various points.
A 1994 Explorer has 2 oxygen sensors, they are either screwed into the exhaust manifolds at their outlets or into the ehaust pipes near the engine.
My Chilton repair manual - engine wiring schematic shows ( 2 ) heated oxygen sensors for the 1993 Ford Explorer
There are 2 oxygen sensors.
According to my Haynes repair manual : For a 1997 Ford Explorer , 4.0 liter Single Over Head Cam , V6 engine : The engine wiring schematic shows ( 4 ) oxygen sensors
A 2001 Ford Explorer Sport , with the 4.0 liter Single Over Head Cam V6 engine should have ( 4 oxygen sensors )
Don't know what your original reading was, but the O2 sensors before the cats moniter how the engine is running and the O2 sensors after the cats moniter how the cats are performing.
i believe four,before and after the cat converters
two oxygen sensors for air / fuel ratio (and another two oxygen sensors that are called catalyst monitors installed downstream )
You must mean Oxygen sensors. There are 2 upsteam (O2 sensors) and there are 2 downstream (catalyst moniters).
On a 1998 Ford Explorer XLT : With the 4.0 liter SOHC V6 engine ( 4 oxygen sensors , the 2 closest to the engine are used for adjusting the fuel ratio and the other 2 are catalyst monitors There are also ( 4 oxygen sensors if you have the 5.0 liter V8 engine )
where are the oxygen sensors on a 2004 ford escape with a 3.0 engine
On a 1998 Ford Explorer Sport : If it has the 4.0 litre EFI engine ( which is an over head valve / pushrod design engine / the 8th character of the VIN is an " X " ) there are ( 3 oxygen sensors ) If it has the 4.0 litre SOHC engine ( the 8th character of the VIN is an " E " ) there are ( 4 oxygen sensors )
This is only going to answer half of the question : On a 1995 Ford Explorer , 4.0L EFI , V6 engine ( which is an Over Head Valve / pushrod design ) There are ( 2 ) oxygen sensors * I BELIEVE they are in the outlets of each exhaust manifold *
My 1995 Ford Explorer has ( 2 ) and depending on the year anywhere from ( 1 to 4 ) and it also depends if you have the 4.0 liter OHV or SOHC engine
( 2 sensors ) - # 6 fuse - 15 amp - HEGO sensors ( in the fuse panel in the drivers end of the dash )