catalytic converters are located near the muffler.very difficult to replace
Crawl under the vehicle and follow the exhaust pipe from the engine rearward. You will run into the catalytic converter.
look under you Chevy and locate the catalytic converter. Your 02 sensors are located before and after the catalytic converter on your muffler. See 1 or 2?
Between the exhaust header and the catalytic converter.
The oxygen sensor is located just upstream from the catalytic converter. Crawl under the vehicle, and locate the catalytic converter, after the exhaust manifold and before the muffler. There should be a four wire sensor there.
Crawl under the vehicle and look up at the exhaust system. The catalytic converter is the first part that looks like a muffler mounted in the exhaust system coming rearward from the engine.
Crawl under the vehicle and look up. You will see the converter connected to the exhaust pipe coming from the engine.
They are all threaded into the exhaust system at various points starting with one directly behind each exhaust manifold then one just before the catalytic converter then one just after the catalytic converter.
Sensor 2 is the one after the catalytic converter. Located strait down under intake.
You get to it from the trunk. Lift up the carpet, and locate access panel in front pass side of trunk.
On a Ford Expedition ( 4.6 and 5.4 ) Bank 1 is the passenger side of the engine Sensor 1 would be close to the engine BEFORE the exhaust enters the catalytic converter Sensor 2 would be AFTER the exhaust has passed through the catalytic converter
Its right on the exhaust manifold, if u look down from the top u should see the cable and be able to locate it. There is also a rear O2 sensor between the header and the catalytic converter.
One can locate a DVD to iPod converter at many websites online. One just needs to know how to use the search and put the right key words into the search.