Replace the flasher relay if none of them are working.
2004 mercury grand marquis fan stop working
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how to remove right turn signal relay on 1986 mercury grand marquis
connected to the turn signal
On a 1996 Mercury Grand Marquis the windshield washer squirter button is on the end of the turn signal lever
assuming you mean the light bulbs, see the answer to "how do you change turn signal lamps both front and rear on a 96 mercury grand marquis" right here in WikiAnswers.
Mercury Grand Marquis was created in 1983.
check fuse
Under dash, driver's side.
.054 is the gap for the Mercury Grand Marquis.
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