Maybe the temp gauge works, but there is a separate coolant temperature sensor for the engine control system, which includes the fans. Check it out.
the most common cause is the fan module
Ignition module.
you may need new water pump the cooling fins wear out a common cause.
A partially clogged converter will cause this. Also an overly rich fuel/air mixture or a cylinder misfire is a cause.
If air is trapped in the cooling system and is not removed, yes, it will cause overheating.
If your check engine light is flashing that means an engine cylinder misfire has been detected
what will cause a Ford Taurus 1998 24 valve to overheat
not likely PCM problem... most common cause is either ... Bad Cooling Fan Relay Blown Cooling Fan Fuse or Bad Cooling Fan Motor
You must run the OBD codes to find out for sure, but sounds like a faulty ignition module or a plugged fuel filter
The cause for a 1991 Ford Taurus to just cut off while driving is probably a problem with the computer. If the car will start again after about 90 minutes, then check the computer module for code errors.
Turning off the sun may cause global cooling
a bad wiper control module, its the box located on the firewall above/next to the master brake cylinder.