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Home >> GMC >> 2014 >> Sierra 2500 HD SLT, 6.6L Eng VIN 8, RWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls/Fuel - 6.6L (LML) - Repair Instructions >> Repair Instructions >> Emission Reduction Fluid Supply Pump Module Replacement >> Installation Procedure

Installation Procedure

    Fig 1: Supply Pump-To-Reservoir Cover O-Ring Seals
    GM2767764Courtesy of GENERAL MOTORS COMPANY
  1. Carefully install the new supply pump to reservoir cover o-ring seals. Position the smaller o-ring seal (1) over the port on the underside of the supply pump, and position the larger o-ring seal (2) into the port on the reservoir cover.
    2. Fig 2: DEF Supply Pump Module
    GM2767749Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

  2. Position the supply pump module (2) onto the reservoir cover and carefully press down into place.
  3. Install the 3 supply pump module retaining bolts (1), and tighten the bolts to 5 N.m (3.7 lb in).
    4. Fig 3: Pump, Pressure Sensor And Reverting Valve
    GM2767744Courtesy of GENERAL MOTORS COMPANY
  4. Connect the DEF wiring jumper harness connectors to the pump (1), pressure sensor (2), and reverting valve (3).
    5. Fig 4: DEF Supply Pump Module Insulators
    GM2767741Courtesy of GENERAL MOTORS COMPANY
  5. Install the DEF supply pump module insulators (1).
    6. Fig 5: DEF Supply Pump Module Shield
    GM2767738Courtesy of GENERAL MOTORS COMPANY
  6. Install the DEF supply pump module shield (1).
  7. Install the DEF tank. Refer to Emission Reduction Fluid Tank Replacement .
  8. Fill the DEF tank with approved DEF fluid.
  9. With system operational, inspect for DEF fluid leaks.
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