iIt will overheat and the engine will eventually lock up. The heat will do damage to the engine. How much is hard to say.
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drive it without coolant
When the car is cold the thermostat is closed. When the thermostat is closed the coolant does not circulate or get in to the engine block.
cools the engine. without a fan, the car will overheat and the coolant will boil. the fan controls this from happening by cooling the coolant as it passes through the radiator.
Yes, it controls the coolant flow around the engine block, without coolant the engine would overheat.
4 miles in winter2 miles in summer
i would say it will be overheating, check coolant level
Not for very long, the coolant will splash out to a point where it will overheat.
igination on car is turned off but car still runs
You can operate a car without an expansion tank but it will most likely drip engine coolant onto the road when the motor heats up.
I have a 99 Deville and my car runs at about 190 to 200 degrees
A heater core in a vehicle takes some of the heat from the coolant and runs it through a heat exchanger. The blower in the car that blows hot air into your car runs through that heat exchanger which heats the air that enters your car.