How do you change the fuel filter on a 2005 V8 Lincoln navigator?

depressurize the system by taking the fuel pump fuse out, starting the engine and letting it run until it stops. the nuts that hold the filter in place should be able to be untightened. use the proper tools, don't use alot of force trying to get the filter loose. you can, and i have twisted the fuel line, and that becomes another problem. replace the fuse and start the car. it will take a few cranks to get the fuel back up to pressure. hope it helps. duboff