It could be caused by a defective pressure cap on the radiator cooling system.
Defective water pump.
The headgasket has failed.
Head gasket could be bad
It depends on if you see the antifreeze leaking or it is just disappearing. If it is just disappearing then a bad head gasket or cracked head may be the problem. The smoking could actually be vaporized antifreeze. If that is the case don't run it until you can get it fixed.
you could be leaking antifreeze and that is what is causing the high pitch noise and overheating. Check the clamps on the hoses, when it gets hot and bubbles out of that, it can create a whistle.
there might be a leak some where in a coolant line. or maybe you have a leak in your radiator.
Probably a blown head gasket. Get a technician to look at it. If it is, it will be a major ordeal.
because you probaly changed it with the wrong water
the radiator was replaced and the fluids are still evaporating or leaking out somehow. what other options could be wrong with the car overheating?
Probably a blown head gasket. If the car has an (engine) oil cooler it might be a leak there too.
You have a leak, without knowing what is leaking you can not get a quote.
First, are you low on antifreeze? If you aren't, did you reset the computer? I'm not an expert on Fords but there may be a little fuse box. The blinking one (if there is) is the one you reset.