Where is the bleed valve for cooling system 98 Mercury villager?

The bleed valve for the cooling system on a 1998 Mercury Villager is typically located on the thermostat housing. To access it, you may need to remove any covers or components obstructing it. When bleeding the system, open the valve to allow trapped air to escape until coolant begins to flow steadily. Always ensure the engine is cool before attempting this procedure to avoid burns or injury.