To find it, you'll need to:
1. Identify your engine: Check your vehicle's documentation or look for engine markings on the engine block itself. Knowing the engine type (e.g., 350 small-block, 454 big-block, 250 inline-6) is crucial.
2. Consult a repair manual specific to your engine: A Haynes or Chilton repair manual for your specific year and engine will show you a diagram of the engine and the precise location of the oil pressure sensor. These manuals are invaluable for this type of question.
3. Look for a sensor on the engine block near the oil filter: While the exact location changes, it's commonly found in this general area. It's usually a small sensor with one or two wires connected to it. It may have a single wire or two wires, depending on whether it's just for a gauge or also for a warning light.
Without knowing the specific engine, giving a precise location is impossible. Using a repair manual is the best and safest way to locate it.
