In exhaust pipe before catalytic converter unscrew to replace
they are located in the exhaust system Where ? how many 02 sensors on a 2003 Pontiac Montana
where are the oxygen sensors on a 2000 Pontiac grand am and how do you change them?
see if your local library has a manual for free d
In a 2003 Pontiac Montana, the oxygen sensors are located in two main areas: the upstream (pre-cat) sensor is situated in the exhaust manifold or just before the catalytic converter, while the downstream (post-cat) sensor is located after the catalytic converter in the exhaust system. These sensors monitor the oxygen levels in the exhaust gases to help optimize engine performance and emissions. Accessing them may require lifting the vehicle for easier reach.
Oxygen sensors are located in the exhaust manifolds & in the exhaust pipes on most vehicles
2
2
Under the steering wheel
On a 2001 Pontiac Aztek, the oxygen sensors are located in two primary locations: the upstream (pre-catalytic converter) sensor is positioned on the exhaust manifold, while the downstream (post-catalytic converter) sensor can be found on the exhaust pipe, after the catalytic converter. These sensors monitor the levels of oxygen in the exhaust gases to help optimize engine performance and emissions. If you're looking to replace or inspect them, it's best to access them from underneath the vehicle.
Two sensors, and replace them.
The oxygen sensors that connect to the exhaust system. There should be two, and they should screw into the side of the exhaust.
the auto parts dealer said that it was 4 oxygen sensors on that car.the 1998 Lincoln continetal