Where is the O2 sensor on a 95 Chevy?

The location of the O2 sensor on a 1995 Chevy depends heavily on the *specific* model of Chevy. A 1995 Chevy could be a full-size truck, a Camaro, a Cavalier, an S-10, etc., each with different engine configurations and therefore different sensor placements.

Generally, you'll find at least one O2 sensor:

* Before the catalytic converter (upstream): This is the most common location for at least one sensor. It's usually located in the exhaust manifold or very close to it.

* After the catalytic converter (downstream): Many vehicles, especially those meeting stricter emissions standards, have a second sensor after the catalytic converter. This helps monitor the catalytic converter's efficiency.

To find the precise location, you need to:

1. Know your specific Chevy model (e.g., Silverado 1500, Lumina, Blazer): This is crucial.

2. Find a repair manual: A repair manual specific to your year, make, and model will have diagrams showing the exact location of the O2 sensor(s). You can often find these online (though be cautious about using free, unofficial sources) or at auto parts stores.

3. Consult online forums: Search online forums specific to your Chevy model. Someone else likely has had to replace their O2 sensor and posted pictures or descriptions.

Caution: The exhaust system gets extremely hot. Always let it cool down completely before attempting to locate or replace an O2 sensor. Wear appropriate safety gear, including gloves.