Where is the Thermostat located on a 2002 Lincoln LS V8?

The thermostat on a 2002 Lincoln LS V8 is located on the engine, behind the water pump. It's not easily accessible; you'll likely need to remove some components to reach it. Access usually requires removing the engine's lower radiator hose and possibly other parts depending on the specific engine configuration. A repair manual specific to your vehicle's year and engine is highly recommended before attempting this repair.