How can I remove the gas tank? - 1995 Ford Windstar

have to remove the gas/water in that is in the tank by removing the tank so you can turn it upside down and make sure every drop of the gas/water is out of the tank siphoning it out may leave some old gas/water in the bottom of tank then get rid of it let the tank dry out for a day and reattach it, then refill your tank with gas it may screw up for a little bit until the gas/water trapped in the fuel line is totally gone.
Go to you tube and look up "removing gas tank"

most are in the gas tank.

Easy job if you have a floor jack, 2 floor stands and wrench.
Empty the gas tank, place jack centered on the gas tank jack up the car, put the floor stands in place to hold the car steady, disconnect the wiring go to the gas tank then remove the bolts (most cars only have 2 holding the tank braces, slowly lower the floor jack with the tank on it, remove the fuel pump slowly and carefully as not to have anything fall in the tank.
https://www.youtube.com/results?search_query=remove+gas+tank

How to fix a leaking gas tank - YouTube

? 7:20
www.youtube.com/watch?v=Luj6qPuxIPM
Mar 10, 2013 - Uploaded by FastestIntegra How to clean and fix a leaking gas tank. ... i repair rusted gas tanks with fiberglass putty, works really well, i have a car that i fixed 7 years ago ...

Procedure to remove a fuel tank depends on brand, model and year of the car. Just some examples:
How to properly remove gas tank

How To Remove Gas Tank

How To Remove The Fuel Tank

How to drain your car fuel gas tank

If the old gas is bad you should remove the tank, dump the gas, and clean the inside of the tank. You may have to siphon the gas to get to the point where you can manage the tank to remove it.

Remove gas tank. Remove sending unit, drain fuel.

Just plain silly. Remove gas tank, drain and dry. Replace fuel filter. Fill gas tank with 5 gallons of fresh gas. Add a bottle of water remover to tank then start and drive. Good luck.

TO REMOVE FUEL TANK FIRST YOU NEED TO MAKE SURE FUEL SYSTEM BEEN DEPRESSURIZE. YOU CAN REMOVE FUEL PUMP RELAY LET CAR RUN UNTIL DIES LACK OF GAS. THEN CRANK ENGINE OVER FEW TIMES MAKE SURE ALL GAS OUT OF FUEL LINES. THEN REMOVE FUEL CAP THEN DRAIN FUEL TANK.YOU CAN BUY A SIPHON AT ANY AUTO PARTS STORES, DONT SIPHON GAS WITH MOUTH CAN BE VERY FATAL.ONCE FUEL OUT OF TANK. SAFELY RAISE SUPPORT VECHICLE ON JACK STANDS, MAKE SURE VECHICLE SITTING ON LEVEL SOLID GROUND. LOOK UNDERNEATH VECHICLE REMOVE FUEL FILTER DISCONNECT FUEL PUMP ELECTRICAL WIRE CONNECTOR, THEN REMOVE EVAP CANISTER, VENT SOLENOID, AND VAPOR LINES DISCONNECT FUEL LINES, THEN REMOVE THE LOWER FILLERHOSE GOING INTO FUEL TANK. LOOK AROUND TANK YOU PROBABLY HAVE TO REMOVE HEAT SHIELD AROUND GAS TANK AND REMOVE EXHAUST PIPES IF IN THE WAY. GET A LARGE FLOOR JACK AND THE PLACE A PIECE WOOD ON FLOOR JACK SADDLE.THEN RAISE FLOOR JACK JUST ENOUGH SUPPORT FUEL TANK THEN REMOVE FUEL TANK SUPPORT STRAPS THEN SLOWLY LET DOWN THE FUEL TANK. TO FINISH DISCONNECTING FUEL LINES AND REMOVING FUEL PUMP. BE SURE AFTER YOU DEPRESSURIZE FUEL SYSTEM TURN OFF RADIO AND REMOVE THE NEGATIVE BATTERY CABLE.

drain the gas
remove the straps to the tank
support the tank as well for now the gas lines need to be removed
remove the tank wiring and pull out
remove the cam washer to remove the float and pump assembly
reverse these procedures to re install

if you have low fuel in tank . take a large floor jack with a piece of ply board on jack saddle a small piece just enough to keep saddle punction a hole in gas tank.make sure you remove charcoal canister the fuel filter.+ fuel supply and return lines remove the exhaust system.place a large container to catch some gas . remove the tank filler hose. take floor jack place it in center of gas tank slowly raise the jack to support gas tank.remove tank straps slowly lower gas tank catch fuel in the container from the tank filler hose. becareful no sparks what so ever you or a time bomb .