To find it, you'll need to:
1. Identify your engine: Check your vehicle's paperwork or the sticker on the driver's side doorjamb to determine the exact engine displacement (3.0L, 3.3L, or 3.8L).
2. Consult a repair manual: Once you know the engine type, obtain a repair manual specific to your year and engine. These manuals (Haynes, Chilton, or a factory service manual) will have detailed diagrams showing the exact location of all sensors, including the Bank 1 O2 sensor. This is the most reliable method.
3. Use online resources cautiously: While online diagrams and forums can be helpful, they aren't always accurate and may vary depending on the engine and minor trim differences. Always double-check against a repair manual.
Generally, you'll find the Bank 1 O2 sensor in the exhaust manifold or the exhaust pipe close to the manifold, on the driver's side (depending on the engine and whether it's upstream or downstream). But again, a repair manual is crucial for accurate placement. Getting the wrong sensor can lead to further complications.
