Where is oil sensor or pressure sending unit for 1999 Chrysler 5.7 liter engine?

The oil pressure sending unit on a 1999 Chrysler 5.7L engine (likely a Magnum) is typically located on the driver's side (left) of the engine block, near the oil filter. It's a small, usually one-wire, sensor with a single electrical connector.

However, the exact location can vary slightly depending on the specific engine configuration and accessories. The best way to be certain is to consult a repair manual specific to your 1999 Chrysler vehicle and 5.7L engine. A shop manual will have diagrams and precise locations.

Using a visual inspection with the engine bay clean is also helpful. Look near the oil filter – the sensor will have a wire connected to it.

Caution: Be careful when working near hot engine components. Allow the engine to cool completely before attempting any inspection or repair.