Where is the thermostat on my 2003 Mitsubishi montero?

On a 2003 Mitsubishi Montero, the thermostat is typically located in the engine compartment, near where the upper radiator hose connects to the engine. To access it, you may need to remove the hose and possibly other components for better visibility. It's a good idea to consult your vehicle's service manual for specific instructions or diagrams related to your model.