Make sure to let the fuel pressure go by releasing the pump's hold and unplug the negative
Battery Cable before doing anything else. Leave less than 5/8 of fuel in the tank before trying to remove the lock-ring. To drain some fuel, insert a hard nylon tube with a 30° cut into the tank opening to open the check valve. To access the modules, first push the back part of the sectional forward and up, then pull back the foam top on the storage access door. Take out the electrical connector from the left side module and mark how it is set up. Take out the left side module lock ring with tool #9340 and unlock the fuel from the left tank by raising the module to connect the hose with the tank. Unplug the electrical connections from the top of the module and take off the module top half. You can release the fuel level sending card, fuel return lines and fuel supply line by pushing the release tab and pulling up the line. Take out the lower module's fuel return line and lay the module on its side to let any fuel remain inside drain out of the vehicle. Set the pump module inside the tank again, line up the fuel return lines and attach the fuel supply line securely. Return the electrical connectors to the underside of the module top and then align the marks on both tops as you place the module top onto the module bottom. Use special tool #9340 to secure the module with the lock-ring, link the electrical connector to the left side module and set the plastic access cover in place. Lay the foam pad back inside, set the rear lower
Seat Cushion on its hinges, add fuel to the tank and reattach the negative battery cable. After that, use the scan tool to apply fuel pressure and see if there are any leaks.