Shiny square box on drivers fender near headlight.
The 1986 Mercury Marquis does not have a fuel cutoff switch. The fuel pump does have a fuse, of which could render it as nonworking.
defective voltage regulator
I/C Regulator built inside alternator.
Inside the alternator
if you replace the alternator will you also be replacing the voltage regulator
The voltage regulator on a 1986 Buick Skyhawk is located inside the alternator. It controls the amount of power sent to charge the batter based on its current state.
is inside the alternater
It is built in to the alternator.
Inside the Alternator.
Most vehicle manufacturers now put the regulator inside the alternator.
how to remove right turn signal relay on 1986 mercury grand marquis
shock absorbers