It is inside the fuel tank, removal will require access to the top of the fuel tank.
On a 2004 Mercury Grand Marquis : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
headlight relay location on a 2004 mercury grand marquis
The cabin air filter, in your 2004 Mercury grand Marquis, is located behind the dashboard on the passenger side. The air filter is directly behind the glove compartment.
2004 mercury grand marquis fan stop working
According to the 2004 Mercury Grand Marquis Owner Guide : ( 19.0 US. gallons )
According to the 2004 Mercury Grand Marquis Owner Guide : ( " regular " unleaded gasoline , 87 octane )
According to the 2004 Mercury Grand Marquis Owner Guide : With engine oil filter change : ( 6.0 U.S. quarts of 5W-20 )
According to the 2004 Mercury Grand Marquis Owner Guide : With engine oil filter change : ( 6 quarts )
Take it to a repair shop.
According to the 2004 Mercury Grand Marquis Owner Guide : The engine cooling system capacity is ( 18 liters / 19 U.S. quarts ) It came from the factory with a 50 / 50 mix of antifreeze and distilled water
On a 2004 Mercury Grand Marquis : The fuel pump shut off switch ( inertia switch ) which has a reset button on top is located : ( in the trunk , behind the trunk liner on the drivers side , near the drivers side rear tail light , there is an access hole )
Should be 4x6. 3x5 is the other size.