Here's an update on the situation. It has been determined that the
thermostat, fan, CCRM, belts, hoses, coolant temp. & sending sensors and
radiator are all operating normally based on my conversations with a few
service people at Ford. Someone mentioned a faulty heater core but that's
been ruled out as well. However, considering all the above and the way the
car is acting, the water pump is likely the issue. It would explain why the
car heats up in traffic versus running cool on the highway. What happens is
the engine temp reaches a point where even with the fan running, it won't
return to normal operating temp unless there's increased air flow thus
compensating for the lack of coolant being pumped into the engine. At low
speeds, the pump isn't pushing enough coolant so the engine heats up. The
fan kicks in and trys to cool the engine but the heat and lack of
sustained air flow, causes it to remain warm. That's my theory anyway..it
makes sense because i've flushed the radiator every year since I bought
the bitch and the coolant looks good. I'm guessing the fins on the water
pump are corroded to a failing point. Especially in 100 degree heat under
stop and go conditions with the A/C running.

Oh, to answer your question, my fan has 2 wires, red & black.

Thanks again for your help. The information is greatly appreciated.