Cadillac 20867261 Fuel Pump Flow Control Module Assembly

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Remove the right-side trim panel in the trunk.

There are two fuel pump modules in the vehicle. The primary module consists of the fuel pump, fuel level sending unit, and fuel filter. The secondary module includes a fuel level sending unit and fuel pick up. These components cannot be serviced separately. The fuel pressure is regulated by the Fuel Pump Driver Module (FPDM). To remove the primary module, relieve the fuel system pressure and disconnect the electrical connector and fuel supply line quick-connect fitting. Rotate the locking ring counterclockwise using pliers and carefully pull the module out of the tank, disconnecting the transfer tube. Inspect and replace the O-ring if necessary before reinstalling. For the secondary module, disconnect the electrical connector and rotate the locking ring counterclockwise to remove it. Carefully pull the module out of the tank, disconnecting the transfer tube. Inspect and replace the O-ring as needed before reinstalling. The FPDM, which controls the fuel pump module speed and pressure, is located behind the right-rear quarter trim panel. To access it, remove the rear seat and right-rear quarter trim panel. Disconnect the electrical connector and remove the mounting nut to remove the FPDM. Reinstallation is the reverse of removal.

To detach the module from the bracket, remove the nut and detach the module from the bracket. The FPFCM mounting nut is shown for 2015 and earlier models, while later models are mounted to the battery tray.

To install the FPFCM module, simply follow the steps in reverse order.

Disconnect the cable from the negative battery terminal. Open the liftgate and remove the spare tire cover and the left-side trim panel. Disconnect the electrical connector from the Fuel Pump Driver Module (FPDM). Remove the FPDM mounting nuts and remove the module. Installation is the reverse of removal.