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Fuel Pump Module: Removal

Fuel tank removal will be necessary for fuel pump module removal.

WARNING: THE FUEL SYSTEM IS UNDER A CONSTANT PRESSURE (EVEN WITH THE ENGINE OFF). BEFORE SERVICING FUEL PUMP MODULE, FUEL SYSTEM PRESSURE MUST BE RELEASED.
  1. Perform STANDARD PROCEDURE - FUEL SYSTEM PRESSURE RELEASE  .
  2. Drain fuel tank and remove tank. Refer to REMOVAL  .
  3. Thoroughly wash and clean area around pump module to prevent contaminants from entering tank.
  4. Disconnect electrical connector at top of pump module.
  5. Disconnect fuel return and pressure lines from fuel pump module fittings (Figure ). Refer to QUICK CONNECT FITTING  for procedures.
  6. The plastic fuel pump module lock nut is threaded onto fuel tank (Figure ). Install Special Tool 6856 to fuel pump module lock nut and remove lock nut (Fig 1 ). While rotating tool 6856, be careful not to damage fuel fittings or electrical connector. The fuel pump module will spring up slightly after lock nut is removed.
  7. Remove module from fuel tank.
    Fig 1: Lock Nut Removal/Installation (Typical Pump Module Shown)
    G03583816Courtesy of DAIMLERCHRYSLER CORP.