It depends on where the freeze plug is. Some Are on the back of the motor requiring the transmission to be removed. Once you can see it you can take it out with a screwdriver and it is easier to replace with a rubber one rather than a metal one.
How do you replace the timing chain on a 1994 mercury grand marquis
take it to a shop
Remove the transmission and take it off.
thats my question to you
i have no heat in my 1994 mercury grand marquis. what could cause the heat to stop working
This is not cost effective. It's quicker and cheaper to replace the compressor.
.054 is the gap for the Mercury Grand Marquis.
A 1994 Mercury Grand Marquis would have come from the factory with a 50 / 50 mix of distilled water and GREEN color antifreeze ( meeting Ford specification ESE-M97B44-A )
I've had a similar problem with my 92 grand marquis. I had to change the mass air flow sensor and replace a broken vacuum line. after that my car ran better than it ever did.
There should be an EEC TEST connection in the engine compartment ( a 1994 Mercury Grand Marquis is OBD I , EEC-IV )
take a big rock and bust it out. than weld the new one in.
Ou812