Where is the crankshaft sensor located on a 99 GMC Suburban 5.7?

On a 1999 GMC Suburban with a 5.7L engine, the crankshaft position sensor is typically located on the engine's lower front, near the crankshaft pulley. It is mounted near the oil pan on the driver's side and is accessible from underneath the vehicle. The sensor is usually held in place by a bolt and connected to the engine's wiring harness. Always refer to a repair manual for specific details and diagrams for your model.