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Run the car with the rad. cap off and the heater on full blast until it fully warms up and the thermostat opens. Any air in the system will bubble up through the radiator opening. Top off with coolant. Opening the bleeder screw helps (when the engine is cold, close it before running the car!)
Originally posted by s1ngle question: if some coolant leaked out and i just reconnected the hose without burping, is that bad?
Yes, the car may run hot or actually overheat if enough coolant is lost.