maybe
I have a 2003 mercury grand marquis will sputter around running 35 - 60 mph ?
the fuse box on a 1991 ford grand marquis is located right under the steering wheel
Mercury Grand Marquis
I have a 1998 ford grand Marquis- and the problem is the air suspension light stays on- how to fix this problem
counterclockwise
in the fuse box
5w-30 is what I use in my 2000 grand marquis, in 2001 ford started saying 5w-20.
There isn't a reset switch on a 1983 grand marquis as Ford didn't put fuel injection into cars until 1986.
According to the 1999 Mercury Grand Marquis Owner Guide ( and one of Ford's websites ) ( Motorcraft FL-820-S , engine oil filter )
Crown is by Ford, and Marquis is by Mercury. Same company. Just the body style. Like Chev and Pontiac.
According to the 1996 Mercury Grand Marquis Owner Guide : ( DOT 3 brake fluid , meeting Ford specification ESA-M6C25-A )