Where is the oil pressure switch located on a 1993 Buick Regal?

The oil pressure switch on a 1993 Buick Regal is typically located on the driver's side of the engine block, near the oil filter. However, the exact location can vary slightly depending on the engine (3.1L V6, 3.8L V6, etc.). To be certain, you'll need to consult a repair manual specific to your Regal's engine. A Haynes or Chilton manual would be a good resource, showing diagrams and providing precise location information.