[shorod]

Several of the earlier Taurus models (although I'm not sure the '94 was one of them) had issues with corrosion of the cooling system. Often this caused a lack of heat in the cabin first, and if left to go long enough, it could corrode the vanes on the water pump causing overheating conditions. Since it sounds like the coolant in the radiator is in bad shape, you may also have restricted flow through the radiator. There may be some cooling system flush product that will clean out the sludge in the system, but it may require several applications. I'm not sure what products are available or what works best though.

-Rod