Motor to body ground
Location of motor to body grounds
Just look around the motor for a big wire connector to a bolt going into engine, there may be more than one and also the negative battery cable goes to frame near the front inner/top frame by wheel on the same side as your battery.
Looking for a Used Grand Marquis in your area?
CarGurus has 1,710 nationwide Grand Marquis listings starting at $800.
Search Mercury Grand Marquis Questions
Mercury Grand Marquis Experts
Related Models For Sale