Where is the crankshaft sensor located on a 1994 S10 blazer 4.3?

The crankshaft position sensor (CKP) on a 1994 S10 Blazer with the 4.3L V6 engine is typically located on the passenger side (right side) of the engine block, near the bellhousing where the engine connects to the transmission. It's usually mounted on the block itself, and points towards the crankshaft pulley.

However, it's crucial to consult a repair manual specific to your 1994 S10 Blazer 4.3L. The exact location can vary slightly depending on the specific engine configuration. A diagram in the manual will show you precisely where it's located on your vehicle. Using a Haynes or Chilton manual, or even a digital version available online, is highly recommended before attempting any repair work.