Where is the thermostat located on a 2001 Cadillac Eldorado?

On a 2001 Cadillac Eldorado, the thermostat is located in the engine compartment, specifically at the engine's water outlet housing. To access it, you typically need to remove the upper radiator hose connected to the thermostat housing. The thermostat itself is situated within this housing, where it regulates coolant flow from the engine to the radiator.