On a 2000 Chevrolet Blazer, the oxygen (O2) sensors are typically located in two main areas. There is one O2 sensor positioned in the exhaust manifold or just after it (upstream or pre-catalytic converter) and another located after the catalytic converter (downstream or post-catalytic converter). These sensors monitor the exhaust gases to help manage fuel efficiency and emissions.
That vehicle has several O2 sensors and they are all threaded into the exhaust system at various points.
there are 2 pre-cat sensors located on each exhaust manifold and 1 after cat. if you scanned it to read code precat sensors will be bank one or bank two,the other is just for cat.
All O2 sensors are threaded into the exhaust system at various points. Upstream O2 sensors are located before the catalytic converter(s) and downstream O2 sensors are located after the catalytic converter(s).
usually 02 sensors are located on the catylac converter OR the manifold
On exhaust pipes before and after cat. converters.
possibly bad o2 sensors! Check ignition switch
There are several O2 sensors on that vehicle and they are all threaded into the exhaust system at various points.
The o2 sensors are located in the exhaust system either on the exhaust manifold or the exhaust pipe itself. Most of them are in front of the convertor.
o2 sensors are located on the muffler located in the back there are 2 o2 sensors each costing about $70 each at your local auto zone hope this helps ELIA
All O2 sensors are located somewhere on the exhaust system.
There are four o2 sensors on a 1996 Chevy blazer all on the exhaust, of course, there are three ahead of the convertors and one between the convertor and muffler. on the right hand bank. should be changed every 60,000 miles.
All O2 sensors all threaded into the exhaust system at various points.