Loose exhaust system.
On a 2002 Mercury Mountaineer : The fuse panel is under the dash , on the drivers side
On a 2001 Mercury Mountaineer : The fuel filter is under the vehicle , below the drivers door , mounted on the frame rail
In a 2002 Mercury Mountaineer : The passenger compartment fuse panel is directly under the dash on the drivers side
check on the frame on the driver side under the vehicle. the filter is located on the drivers side tucked under a frame rail under the drivers door
In a 2000 Mercury Mountaineer : The 6 disc C/D changer should be in the center console ( if not look under the drivers seat )
On a 2002 Mercury Mountaineer : The passenger compartment fuse panel is under the dash , on the drivers side and the Power Distribution Box ( which is " live " ) is located in the engine compartment , on the drivers side of the engine compartment
The mountaineer has a fuse box under the drivers side dash ,and it has two horn fuses , right horn fuse ,and left horn fuse.
On a 1997 Mercury Mountaineer : The gas tank is under the vehicle , on the drivers side It is in front of the rear tire and runs from the rear towards the front of the vehicle
There are two fuse boxes inside of your Mountaineer. the first is when you open the drivers door. it is on the left side of the steering wheel in between the door and the dash. you have to have the door open to access it. The second is under the hood. you have to open the hood and it will be twards the back on the drivers side. it should be on top. it is a black box. hope this helps.
I'm assuming it would be in the same location as on a 1999 Ford Explorer - under the vehicle , below the drivers door , mounted in the frame rail
I have a 2000 Mountaineer and my flasher was located to the right of the drivers leg just under the dash. It should be mounted to a bracket there and easily located. On mine, I was having problems and all it was was that the wire had come a little loose. I pulled the wire off and then put it back on and haven't had a problem since.
Vacuum leak in a/c door control system . Look for vacuum leak under the hood.