The alternator is mounted low on the back side of the engine.
On the brake pedal assembly.
It might be the transmission range selector
Should be in a removable housing at the engine end of the upper radiator hose
On the bottom of the heater/AC housing under the dash.
The fuel pump is located in the tank, and the tank must be removed to access it.
According to one of Fords websites : For a 1994 Mercury Villager , 3.0 liter V6 : The radiator cap is ( 13 PSI )
A Villager is not equipped with any kind of GPS device.
the alternator is removed from below and there is three bolts (10 mm socket) that need removed. one of these bolts is on the other side of alternator. use a small mirror to see this bolt. Don't forget to disconnect battery!!!
Replace the transmission computer. Located under the center console.
The 1994 Mercury Villager has a 3.0 litre V6 engine from the factory : ( it has 6 engine cylinders )
According to one of Fords websites : For the 3.0 litre V6 engine in a 1994 Mercury Villager : ( the spark plugs are gapped at .032 inch )
The ignition module and coil are contained inside the distributor and are not serviced as separate parts.