A: The modules are serviced as complete assemblies. The only parts that can be replaced separately are the fuel level sensors. The primary and secondary level sending units are not interchangeable. Remove the appropriate module from the Fuel Tank. Disconnect the wiring from the lower side of the top of the module. The Fuel Pump is also connected to the top of the module. The fuel pump and the filter are replaced as part of the entire fuel tank module. For 2002 and 2003 models, if you're working on the secondary module, use a pointed tool to push on the silver connector and release the ground wire from the fuel pressure regulator. Use a small screwdriver to release the clips securing the Fuel Level Sensor, then pull it straight down to remove it. Installation is the reverse of removal. For 2004 and later models, push in on two retaining clips near the pivot of the float arm. Slide the Fuel Level Sensor up and off of the module. Installation is the reverse of removal.