Yes, it does have a flasher, although it may be a combined unit with the hazard flashers relay. So you hear the clicking of the flasher relay? That seems to indicate the relay is working properly. Have you checked the bulbs and the turn signal fuse? Any turn signal bulbs light up anywhere, front or back?
How about your brake lights, do they work? Your car may have separate, stand alone turn signals in the rear, but many American cars use the same bulb and same filament on the bulb for the brake lights and turn signals. If your merc is like this and the brake lights work, then the bulb must be good.
Turn on the hazard flashers and see if all bulbs work and flash at each corner of the car. This would be the same bulb as for the turn signals. If they work, it could be a bad turn signal switch, may even be the flasher relay somehow malfunctioning, and in a few cases, a bad hazard switch can affect the turn signal switch. Check fuses and bulbs first. If you have any type of body control module that controls lights and other accessories, you may have to investigate that. I know I'm not being very helpful, just throwing out a few suggestions. Good luck.
SOURCE: 1997 Grand Marquis turn signals
There are 2 Locations that this Relay could be. There is a Panel inside the Car, Posibly Under the Dash? and one Under the Hood. The one under the Hood is called a Fuse Relay Box and Has a Lot of Relays for Different things in it. The Diagram of what is what in it Should be on the Inside of the Cover. let me know if you need more Help! Please Rate my Response, I need all the Help That I can Get! Thanks!
SOURCE: turn signal don't work or the flashers?
If you still have flasher problems, I read on Google to spray WD-40 down in and around the hazzard flasher button, then press it up and down several times...and BINGO...all flashers and signals worked again....just had some dirt and dust in the wiring....
SOURCE: 2001 Mercury Grand Marquis hyper flashing on directional lamps
It would probably be easier and a better idea to just get the correct bulbs.
The use of the wrong bulb can cause the flasher to
flash too fast or too slow. Turn signals on American cars use either a
1257 or a 1034 bulb, which are interchangeable. A 1257 bulb draws more
current than a 1034, however and if it is used in place of a 1034, the
flasher will flash faster. If a 1034 bulb is used in place of an 1157
bulb, it will flash slower.
SOURCE: I have a 1998 grand Marquis and the turn signal as
Check in the passenger fuse panel, its possible that you need replaced the "flashers"...
For details review the Grand Marquis Owners Manual. (page 95 and next for FUSES)
Hope this help (remember rated this post).
SOURCE: Need to change flasher relay in 1997 Mercury Grand
From the 1997 Mercury Grand Marquis
4.6L SFI 8cyl repair manual, the
Flasher is located behind left side of instrument panel. The turn signal and emergency flashers are attached to the interior fuse
panel. They are replaced in the same manner as the fuses and circuit
breakers.
Fig. 6: 1995-97 models interior fuse box locations (click for zoom)
Hope helps (remember rated this).
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