Where is the crankshaft sensor located on a 1987 Chevrolet celebrity 4 cylinder 2.5?

On a 1987 Chevrolet Celebrity with a 2.5L 4-cylinder engine, the crankshaft position sensor (CKP sensor) is typically located on the passenger side (right side) of the engine block, near the crankshaft pulley. It's often mounted to the engine block itself, sometimes within close proximity to the distributor (if so equipped; some variations might have electronic ignition).

However, without a specific diagram for your exact engine model, this is a general location. To be certain, you should:

* Consult a repair manual: A Haynes or Chilton repair manual specific to your 1987 Chevrolet Celebrity 2.5L will have diagrams and precise instructions. This is the most reliable method.

* Use a parts diagram: Many online auto parts stores (like AutoZone, Advance Auto Parts, etc.) allow you to look up parts diagrams by entering your vehicle's year, make, model, and engine. Find the crankshaft sensor and its location on the diagram.

Remember to be cautious when working near the engine; disconnect the negative battery cable before starting any work.