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Re: Coolant loss
A lot of the new engines are designed in a way that there isn't a direct bleed for trapped air when the engine is turned off. Some manufacturers have put in a bleed screw to remove this air. Ford doesn't, when the coolant gets low or is let out for work, you have to check it for awhile. So it will take a few run cycles for the system to purge the trapped air on its own since there is no way except with a vacuum device to get it out.
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