The engine is fuel injected so it doesn't have a carburetor
how do you know when valve lifters for 94 mercury villager 3.0 engine r bad
No, it's not.
The 3.0 litre V6 engine in a 1994 Mercury Villager has a timing BELT
The 1994 Mercury Villager has a 3.0 litre V6 engine from the factory : ( it has 6 engine cylinders )
supply, return, and vapor collection.
Listed in your owner's manual and under the hood on a placard.
the type of oil recommended is 5w30, at an oil change the capacity is 4.2qt.
Remove the two slider screws that hold it in place.
vacuumm leak
You remove the center seat and slide the back one up into it's place.
hidden back drivers side storage compartment, passengerside should have your Jack etc.
If your asking where the sending unit is that tells how much fuel you have it is in the fuel tank attached to the fuel pump.