Inside the frame rail, about 3/4 of the way back, about the size of a coke can. May have a guard that hides it. It is underneath the van on the driver's side near the rear edge of the driver's door. Follow the fuel line coming out of the gas tank to it. Since the Freestar is just a new name Ford put on the Windstar, you can use the information from the "Related Questions" below for filter replacement instructions.
On a 2004 Ford Freestar : The transaxle ( transmission ) is located in the engine compartment on the drivers side . It is bolted to the " rear " of the engine
For the 2004 Ford Freestar : 3.9 and 4.2 liter V6 engines : ( Motorcraft FL-400-S engine oil filter ) according to one of Fords websites
Oil filter is located under lowest end of the serpentine belt, passenger side of the vehicle, between the lower frame angle.
Ford Freestar was created in 2004.
It will hold 5 quarts exactly with a filter change.
On a 2004 Ford Freestar : The thread on cap on the engine coolant reservoir is the pressure cap / radiator cap
About $10 See "Related Questions" below for more
On a 2004 Ford Freestar : The fuel pump inertia switch is located in the cargo area behind the service panel cover on the passenger side of the vehicle
( 26 U.S. gallons ) for a 2004 Ford Freestar
there is no coil on 2004 freestar 3.9L engine. it is only an ignition module and it is located in the back of the engine by the firewall.
One reason a 2004 Ford Freestar may stall out is because of a water damaged PCM. This is a common problem with the 2004 Ford Freestar.
On a 2004 Ford Freestar ( 3.9 and 4.2 liter V6 engines ) firewall 1-----2-----3 4-----5-----6 front of vehicle > driver