Where is crank sensor on 1989 Chevy van 4.3 liter?

The crank sensor on a 1989 Chevy van with a 4.3L V6 engine is located on the passenger side of the engine block, near the front of the engine, and typically mounted on the bellhousing. It's usually a fairly small sensor with one or two wires. However, the exact position can vary slightly depending on the specific engine configuration.

Because of this slight variation, it's best to consult a repair manual specific to your year and model Chevy van. A Haynes or Chilton manual will have diagrams showing the exact location. You can also use an online repair database like AllDataDIY (subscription required) for more precise information. Searching online for "1989 Chevy van 4.3L crank sensor location" with images may also yield helpful results.

Caution: Before attempting any work on your vehicle, disconnect the negative battery cable to prevent accidental shorts.