your loosing idle pressure check your vacume lines ans throttle sensor
on top of gas pedal
According to the 2001 Mercury Grand Marquis owners manual the fuse panel is below and to the left of the steering wheel , by the brake pedal , and has a cover on it
to the left of the brake pedal, mounted to the firewall.
( # 16 ) is a 20 amp fuse for the cigarette lighter and OBD II in a 2007 Mercury Grand Marquis ( in the fuse panel below and to the left of the steering wheel by the brake pedal )
On a 1999 Mercury Grand Marquis : In the fuse panel below and to the left of the steering wheel , by the brake pedal ( it has a cover on it ) ( # 16 is a 20 amp fuse for the cigar lighter )
On a 2000 Mercury Grand Marquis : The fuse box is below and to the left of the steering wheel , by the brake pedal ( it has a cover on it ) Also , the Power Distribution Box ( which is " live " ) is located in the engine compartment
Check the brake light switch ,on the brake pedal. Might need adjusting.
In a 2000 Mercury Grand Marquis fuse ( # 16 ) is a 20 amp fuse for the cigarette lighter ( in the fuse panel below and to the left of the steering wheel by the brake pedal , the panel has a cover on it )
In a 1998 Mercury Grand Marquis ( fuse # 16 is a 20 amp fuse for the cigarette lighter and emergency flasher relay ) in the fuse box below and to the left of the steering wheel , by the brake pedal ( it has a cover on it )
In a 2001 Mercury Grand Marquis : In the fuse panel below and to the left of the steering wheel , by the brake pedal ( it has a cover on it ) ( fuse # 25 is a 20 amp fuse for the cigarette lighter and power point )
In a 2003 Mercury Grand Marquis : Fuse ( # 25 ) is a blue color 15 amp fuse for the cigarette lighter ( located in the fuse panel below and to the left of your steering wheel by the brake pedal , it has a cover on it )
In the dash. Bottom left hand side near the brake pedal and steering column.