The question you ask is too involved for a proper answer.
You need to go to a car
parts store, and get a
repair manual for your car.
They cost about $16.00
Or, go to a Public Library.
take it to the dealer
How do you replace the timing chain on a 1994 mercury grand marquis
how to replace starter on 2000 mercury grand marquis
where is the heater control valve
how do you get to and replace the wiper moter on a 97 marquis
how do you replace the front sway bar likn in a 1999 Grand Marquis?
no
location of heater control valve on 2005 mercury marguis ?
For a 1995 Marquis it requires a skilled mechanic several hours to drop steering column, remove entire dashboard, disconnect airbags, just to get to the heater core.
Mercury Grand Marquis was created in 1983.
change wiper motor grand marques
You have to replace a whole thing, not only a cable