There all screwed into the exhaust system / pipes. There about 4 inches long with an electric wire coming out of the top of them.
The only oxygen sensor is screwed into the front of the catalytic converter.
just ahead of the catalytic converter
All oxygen sensors are threaded into the exhaust system.
The 5.2L has two oxygen sensors.
2, Before & after the catalytic converter.
One.
Depends on the year. My 99' has four. Call your local auto parts store and they can tell you.
2 sensors
There are 4. They are located on ether side of the catalytic converters.
There are two knock sensors on a 2001 Chevy 1500 with the 5.3 V8. You have to remove the intake manifold, because both of them are located under it. it is best to replace both knock sensors at one time, and you will need an intake manifold gasket too. There are two knock sensors on a 2001 Chevy 1500 with the 5.3 V8. You have to remove the intake manifold, because both of them are located under it. it is best to replace both knock sensors at one time, and you will need an intake manifold gasket too.
It has two oxygen sensors. One at the front of the catalytic converter and one after it.
TWO.