More specifically: You'll find one sensor for each camshaft. They are usually positioned on the front of the cylinder head, meaning the side facing the radiator. They are often near the timing belt cover. You'll likely need to remove the timing belt cover (at least partially) to see them clearly. They are relatively small sensors with a single wire connector.
To be absolutely sure:
* Consult a repair manual specific to your vehicle's year and engine code. A Haynes or Chilton manual, or an online service manual, will have diagrams and precise locations. The engine code (found on a sticker under the hood) is crucial for accuracy.
* Use a visual parts diagram. Many online auto parts stores (like AutoZone, Advance Auto Parts, etc.) let you select your vehicle's year, make, model, and engine, and then view diagrams showing the sensor location.
Caution: Working on the timing system requires precision and an understanding of the procedure. If you're not comfortable working on your engine, take it to a qualified mechanic. Improperly handling the timing system can cause serious engine damage.
