It's between the engine and the fire wall. it's pre catalitic converter. There is very little room. It's best to see and work on from drivers side fender. Make sure the exahust is warm to help with removing the 02 sensor.
I believe 96- 04 have the same engine placement. Deville and Seville.
My Seville SLS is a 01 and has three o2 sensors. 2 pre cat and after.
to remove the one after the cat you have to drill out the rivets on the cover plate and then when you replace the cover you will have to use self taping screws!
I may be wrong but I tried my best to help you.
Locate the sensor on the exhaust system unplug it ,unscrew it and replace it in reverse. Pretty simple. Autozone will lend you a special socket needed to go around the wires if needed
The HO2S (Heated Oxygen Sensor) bank 1 is between the manifolds and the Cadillac Converter. Manifold Exhaust (T) > "HO2S Sensor" > Cadillac Converter > muffler
o2 sensor is on driver side 2nd one back
bank 2 sensor 2 location
02 oxygen sensor circuit malfuction bank 1 sensor 1
Try to picture this Bank 1 Sensor 1 Bank 2 Sensor 1 Catalytic Conv. Catalytic Conv. Bank 1 Sensor 2 Bank 2 Sensor 2
Just in front of the Cat converter, drivers side.
on the cat by the downpip
The oxygen sensor bank 1 is located in the exhaust manifold. The oxygen sensor bank 2 on the 1996 BMW 328is is located in the head pipe.
Where are the Bank 1 Sensor 1 oxygen sensor on a 1998 ford explorer?
Bank one sensor two refers to the oxygen sensor. The bank one sensor two oxygen sensor is on the front side of the engine, after the catalytic converter.
You need a special socket and a torch-it won't come off easy. Your best bet is a muffler shop, they do it all the time.