I know there are 3 oxygen sensors. We bought a Haynes repair manual at Auto Zone and it's very helpful. A 1996 Safari with a 4.3L vortec engines has 4 sensors. 2 on the header pipes and one before the catylitic converter and one aft. You can buy a proper O2 sensor socket or use a good wrench. It depends if it is very seized or not?
I have a 1996 cadillac deville concours, an it has 4 oxygen sensors
All oxygen sensors are threaded into the exhaust system.
The oxygen sensors on a 1996 Chrysler Town and Country are screwed into the exhaust system behind the engine.
3
two
two
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two
== == 1996 Corolla's have two oxygen sensors. The first sensor, is pre catalytic converter. It is located on the exhaust manifold. The second sensor is post catalytic converter.
They are screwed into the exhaust system.
The oxygen sensors are located in the exhaust system on either side of the catalytic converter.
A 1996 Chrysler Town and Country has two oxygen sensors. They are screwed into the exhaust on the rear of the engine.