Can the fuel pump and regulator be replaced as individual items on '05 and newer trucks? My '05 is still giving me starting issues and the dealer said that the fuel pump,regulator, and filter were all one assembly now. My fuel pressure is right everywhere, but it is to the point now that it will not start at all. For a while I could apply voltage to the prime terminal in the fuse box and get it to start but that no longer works. Any help is greatly appreciated!!