If it has them they are located on the side of the block. They are actually casting plugs used to remove sand during casting, and have nothing to do with protection from freezing.
Yes
how to change a valve cover gasket on a 97 mercury grand marquis ?
Have you checked the coil's ?
No. If you have c.o.p. ( coil on plug ) just remove the coil, there's the plug.
No, they are of a different design
how do you get to and replace the wiper moter on a 97 marquis
Regular Unleaded.
Around 70 liters.
The drivers side of the engine
On a 1997 Mercury Grand Marquis : The thread on cap on the engine coolant reservoir is the 16 PSI pressure cap / radiator cap
check your fuses
at the end of the plug wires in the head