Where is the crankshaft sensor on a 2001 Chevy Express van 1500?

The crankshaft position sensor (CKP sensor) on a 2001 Chevy Express 1500 is located on the passenger side of the engine block, near the bottom of the engine. It's usually fairly close to the crankshaft pulley. However, the exact location can vary slightly depending on the engine (4.3L, 4.8L, 5.7L, or 6.0L V8 were common options).

To be certain, you should:

* Consult your vehicle's repair manual: This is the most reliable source. The manual will have diagrams and precise instructions.

* Use a reliable online parts diagram: Websites like AutoZone, Advance Auto Parts, or Napa Auto Parts allow you to select your specific year, make, model, and engine to view diagrams showing the sensor's location.

Simply searching "2001 Chevy Express 1500 crankshaft position sensor location" with your specific engine size added (e.g., "...4.8L crankshaft position sensor location") in image search on Google or another search engine may also yield helpful pictures. However, always double-check against your repair manual.