Replace the transmission computer. Located under the center console.
It might be the transmission range selector
PCM, TCM, and internal transmission mechanicals.
It's down low just to the left of the battery, it has a round bulb at the top.
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 1994 Mercury Villager has a 3.0 litre V6 engine from the factory : ( it has 6 engine cylinders )
Drain and refill .......4.0 quarts Dry .........................8.8-10.0 quarts Dexron III or Mercon fluid
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 )
No, it is not an interference engine.
under the hood
The 3.0 litre V6 engine in a 1994 Mercury Villager has a timing BELT
On the EGR valve assembly.