Where is the oxygen sensor on a 2001 Pontiac Grand AM 2.4 engine?

The oxygen sensor location on a 2001 Pontiac Grand Am with a 2.4L engine can vary slightly depending on the specific engine configuration and whether it has one or two oxygen sensors. However, it's almost always located in the exhaust manifold or in the exhaust pipe very close to the exhaust manifold.

To be certain, you should:

* Consult your vehicle's repair manual: This is the most reliable source. The manual will have diagrams showing the exact location of all sensors.

* Use a repair database (like AllDataDIY or Mitchell 1): These online databases often have detailed diagrams and specifications for specific vehicle years and models.

* Search online using your vehicle's year, make, model, and engine size along with "oxygen sensor location". You may find photos or videos from others who have worked on the same car.

General locations to look:

* Before the catalytic converter: This is the most common location for the upstream oxygen sensor (O2 sensor 1).

* After the catalytic converter: This is the most common location for the downstream oxygen sensor (O2 sensor 2), if equipped.

Important Note: Before attempting to locate or replace the oxygen sensor, remember that the exhaust system gets extremely hot. Allow the engine to cool completely before working on it to prevent burns.