The upstream are located just below the manifold and above the mini cats the downstream ones are locted below the mini cats. There are different numbers of snesor depedning on whether you have a California emmission or standard model.
It's in the exhaust. It screws into the catalytic converter.
Upstream is just after the exhaust manifold, and downstream is after the catalytic converter
That is the O2 sensor in the exhaust closest to the engine.
Drivers side of the engine in the exhaust pipe below the exhaust manifold.
Your MIL ( malfunction indicator light ) will be lit and a code for your O2 sensor will be logged.
Two, one on each side of the catalytic converter
Sensor 2 is after the catalytic converter.
Should have 2. Follow your exhaust from the headers back. They'll be after the headers but before the muffler
Not that I've ever heard. It would be a lot easier to reinstall one.
That is located on the back top side of the catalytic converter, right where the outlet tube leads to the muffler.
location of relay for heated o2 sensor 1999 jeep Cherokee sport
The downstream O2 sensor will be either on or just after the catalytic converter, look on the passengers side, under the Jeep, above the big skid pan in the middle of the Jeep.