What he's referring too is a thermostat, the coolant isn't circulating until it's up to temperature, thermostat opens and then it goes through the whole system.
Don't forget to turn your heater on fully so the water can pass through the heater core as well.
Also, no car can be bled by driving it around, even an oldsmobile or a honda, they either have a bleeder screw at the highest point of the cooling system, or it's done through the overflow/radiator cap.
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