If your battery is not up to par could cause this and of course a short in the system too.
alternator bracket
Im sure that the people at MarkVIII.org will be happy to answer any questions related to the marks go there and see if they can help you.
i was told the alternator was going bad and somehow it was backing up into the speedometer
Disconnect the battery and just remove the bolts holding the alternator, disconnect the wire connection and remove the alternator.
Lincoln did not offer a Mark VII in 1993.. Lincoln stopped production in 1992. Then started the Mark VIII in 1993
If the anti-lock and air bag light came on after the battery change and the charging light is on now it is probably your alternator. Usually with the Marks, if the battery starts acting up your best bet is to change the alternator too, I know had to do it to my 93 Mark Vlll. Never had to do it to any other car but had to with the Mark, good luck.
Open the hood, on top of the engine in the middle front.
In all probability the alternator is not charging as it should. It could be from a bad voltage regulator or the alternator being defective.
Disconnect the battery, and remove the electrical connection and remove the bolts, and reverse to install.
The top are 8 mm and the bottom are 10 mm Remember, that is wrench size.
More than likely your alternator is on its way out.
as with any alternator remove the bolts holding it to the engine then it should come off easily of course removing the belt is recommended. then either replace or service the alternator. On older marks an easy way to check the alternator just hold a screwdrivers tip to the rear center of the alternator, if it sticks the alternator works. if it doesn't replace it