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Re: 94 escort temp gage goes to hot...
Your heater core is probably blocked. It is also possible that that valve that opens the heater is broken.
As far as the overheating... since the sensor is in the outlet hose from the heater core, perhaps the sensor has gone screwy if the flow is in fact restricted? Usually this results in an undercooling reading though.
Chances are, you have blockage in the heater core preventing you from getting warm air, and also blockage in the radiator causing the overheating. OR your water pump isn't working.
With the engine cool, start it up and feel the upper radiator hose... it should be squishy... as the engine warms up you should feel a pressure surge when the thermostat opens. No surge likely means the water pump is toast. If you do feel pressure, you need to find the blockage.
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