Below steering wheel on the left.
If it is the same as a 1993 Ford Explorer it is in the interior fuse panel
The fuel pump relay on a 1987 Ford Ranger is located under the dashboard near the steering column. It is typically mounted right near the firewall.
The fuel filter on a 1987 Ford Ranger is located on the driver's side of the vehicle. It is mounted on the frame and it is about even with the rear door.
The computer on a 1993 Ford Ranger is located in the dash in the center just above the transmission hump. The computer is located just below the heater control panel.
on a 97 its behind the passenger side kick panel
the right kick panel is in front of the passenger door , the left kick panel is in front of the drivers door
You most likely have a leaking heater core inside the truck.......
On a 2001 Ford Ranger : Open the drivers door , and IN the drivers end of the dash you will see a removable plastic fuse panel cover . The fuse panel is behind the cover Also , the Power Distribution Box ( which is " live " ) is located in the engine compartment , on the drivers side of the engine compartment
It doesn't have one yes it does it's to the left and below the steering column . panel has two screws
Probably at the rear lower end of engine--follow the + battery cable
In the front passenger footwell by ( or behind ) the kick panel
The fuse panel is located inside fuse box cover which is under he dash, near the steering wheel column on your Ford Econoline.