The question you ask is too involved for a proper answer. You may want to go to a car parts store, or book store, and get a repair manual for your car. They cost about $16.00 Or, go to a Public Library.
what is the cost to replace the rack and pinion on a 1994 mercury sable
According to one of Fords websites : For a 1994 Mercury Villager , 3.0 liter V6 : The radiator cap is ( 13 PSI )
The fuel pump is located in the tank, and the tank must be removed to access it.
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 )
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
105,000 miles , according to the Gates website ( they make timing belts etc. )
The 3.0 litre V6 engine in a 1994 Mercury Villager has a timing BELT
On the EGR valve assembly.
dash dash