How to Take out he Gas Tank/ Door Trunk Panel

images for 2003 Lincoln LS V8 replace the Gas Tank

In the trunk, there should be a carpet panel and the gas door side. Pull the carpet siding back and there should be a lever labeled gas gap manual. Use that to manually release the lock

emergency release should be in the trunk as for the closing of the trunk, you need to disconnect the cable at the trunk latch until you can get it fixed

There is a fuel filler door release switch on the driver's side door in the map pocket. The fuel filler door will pop open when the switch is pressed. It is closed manually.

If this system is malfunctioning, a manual release is located in the trunk. Remove the access cover which is located on the left-side inner trim panel and pull the release cable. The fuel filler door will pop open.

Source: Owner's Manual pages 418-421

Dodge Charger Owners Manual

Tank flap?? what is that.? If you mean the gas cap door then there is a manual release inside the trunk under the trim panel near the gas door.

Open trunk and pull cable in left rear side trunk panel. This is an emergency release for the fuel door. You may have to pull gently out on fuel door while tugging at release cable several times. When the door opens oil latch solenoid tip and bend tab on door latch about 2mm towards hinge.
The fuel door is flimsy and tends to get bent. Once it is bent it prevents the latch solenoid tip from releasing the door latch.

the remote switch you are looking for is the fuel door switch that controls all these items trunk,unlock fuel tank door. this unit has to be replaced as a whole unit but check all your fuses first on driver side dash where door touches dash left side open door look for a triangle shape panel pop it open and check (ALL) fuses and especially #17 brown 7.5 amp fuse top right of fuse block.

you will need to remove the door panel to pt switch back in place but there may be a pll cord in trunk on the same side as fuel door

there should be a pull cable located in the trunk on the side

Yes, I'm sure the owner's manual shows how to do this. Usually one of the panels in the trunk. Take them off to check, but I would consult the manual first.