The first thing I think of is the temperature blend door motor. I believe it's much like the Windstar (which I've had first hand experience with) and can cause intermittent problems.
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The heater switch is located in the middle of the car in the 1998 Ford Taurus. It is either above or below the radio.?æ
Plugged heater core. Try flushing it.
are there two adjustment screws on the headlights on a 1998 ford taurus
what will cause a Ford Taurus 1998 24 valve to overheat
20 city 30 highway for the 1998 Ford Taurus se
According to the 1998 Ford Taurus Owner Guide ( 5W-30 )
Assuming you're referring to the heater core, see "Related Questions" below for tons of detailed information about Taurus/Sable heating systems...
Ford Taurus
yes it will no complications.
On a 1998 Ford Taurus : ( 60.6 litres / 16.0 U.S. gallons )
According to the 1998 Ford Taurus Owner Guide ( 5W-30 )
How do you replace a heater core in a 1998 ford expedition?"