Below and to the left of the steering wheel , by the brake pedal ( it has a cover
on it )
Also , the power distribution box ( which is " live " ) is located in the engine compartment
Look inside the trunk. Should have a sticker on the left trunk arm.
You can view the 1998 Mercury Grand Marquis owners manual online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides ( the fuses and relays section starts on page 95 , it has the diagrams and lists )
A grand marquis wiring diagram can be found in a Chiltons or Haynes auto repair manual.
What Type and Year of Mercury? (I.E., 1997 Mercury Grand Marquis.)
autozone.com
You can find the 1995 Mercury Grand Marquis cigarette lighter fuse in the fuse box. The cigarette lighter fuse will be in the second column, fourth from the bottom.
at the junk yard
Look in the owners manual.
When making changes to the fuel system, a diagram can help guide in the repairs. A fuel system diagram for a 1993 Mercury Grand Marquis can be found in its maintenance manual.
orange button in the glove compartment.
look on the trunk hinge there should be a sticker with the code on it
Because you are about to throw a rod. You need to find a mechanic quick!