According to the 1997 Mercury Sable Owner Guide :
Both the 3.0 litre " Vulcan " V6 engine and the 3.0 litre " Duratec " V6 engine
came from the factory with a 50 / 50 mix of distilled water and GREEN
color antifreeze ( meeting Ford specification ESE-M97B44-A ) in the engine
cooling system
One can find information on Coolant fans many places. You can find information on Coolant fans from advertisements, such as commercial's. You can also find information online including there primary site.
You can find the wiring diagram for a relay position for a 1997 Mercury Sable in the owner's manual. You can also check local auto stores.
In a 1997 Mercury Sable : The fuel pump shut off switch ( inertia switch ) is in the trunk , on the passenger side , behind the trunk liner ( there is an access hole )
The coolant temperature sensor on a 1997 Tacoma is located on the front of the engine. To find it follow the upper radiator hose to where it enters the engine. The sensor will be place near it.
check your coolant level. most times its from a coolant leak in the system.pressurize the cooling system to find the leak.
Coolant is all pretty much the same from manufacturer to manufacturer. Check your owner's manual to find out the right mixture for your Sunfire
How To Find & Fix Coolant Leaks http://www.aa1car.com/library/coolant_leaks.htm
It's possible a seal has broken. Find where it leaks from, could be pump, hose or steering ram. Then replace part.
Did your car overheat? That's probably why it turned off if it did. If you are losing coolant, you should find out where it's going and fix the problem.
If the Sable is equipped with the 3.8 liter engine, it is probably ablown headgasket. If you cannot see an external leak, then you have an internal leak. An internal leak is more likely than not caused by a blown head gasket or cracked head. Stop driving the car immediately or you will do serious engine damage. A compression test will possibly help verify if you have a blown head gasket. Get this repaired ASAP.
Look for the leak. See saturnfans.com for more info
You can find this information at www.autozone.com Click component location.