However, the exact location can vary slightly depending on the engine (e.g., V6 vs. V8). To be absolutely certain, you should:
* Consult a repair manual: A Haynes or Chilton repair manual specific to your 1989 Oldsmobile Delta 88 will have a diagram showing the exact location.
* Use an online parts diagram: Many auto parts websites (like AutoZone, Advance Auto Parts, etc.) allow you to look up parts diagrams for your specific vehicle year, make, and model. Find your engine and look for the crankshaft position sensor.
Accessing it might require removing some components, so be prepared to work under the car and potentially remove some underbody shielding. Remember to disconnect the negative battery cable before doing any work near electrical components.