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
To fill the transmission fluid on a 1994 Mercury Villager, locate the transmission dipstick tube, which is typically found near the back of the engine bay. Remove the dipstick, and use a funnel to add the appropriate type of transmission fluid through the tube. Make sure the vehicle is on a level surface and, if necessary, run the engine and cycle through the gears to ensure the fluid circulates properly before checking the level again. Always refer to the owner's manual for specific fluid specifications and capacity.