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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1028 (Engine Controls And Fuel - 6.6L - Introduction (2 Of 2)) >> Repair Instructions >> Fuel Injection Pump Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Fuel Hose Clamps
    GM1872010Courtesy of GENERAL MOTORS CORP.
  1. Remove the thermostat housing crossover. Refer to Thermostat Housing Crossover Replacement (LMM) .
  2. Remove the center intake manifold. Refer to Center Intake Manifold Replacement .
  3. Reposition the fuel hose clamp (1) at the fuel return pipe.
  4. Reposition the fuel hose clamp (2) at the fuel injection fuel feed manifold.
    5. Fig 2: View Of Fuel Filter Hoses & Clamps
    GM1872011Courtesy of GENERAL MOTORS CORP.
  5. Reposition the fuel hose clamp (2) at the fuel injection pump.
  6. Reposition the fuel hose clamp (3) at the fuel injection pump.
  7. Remove the fuel hose (1) from the return pipe and iniection pump.
  8. Remove the fuel hose (4) from the fuel injection fuel feed manifold and injection pump.
    9. Fig 3: View Of Left Fuel Rail Feed Pipe Fittings
    GM1387871Courtesy of GENERAL MOTORS CORP.
  9. Loosen the left fuel rail fuel feed pipe fittings (1).
    10. Fig 4: View Of Left Fuel Rail At Pump Pipe
    GM1335603Courtesy of GENERAL MOTORS CORP.
  10. Remove the left fuel rail fuel feed pipe.
    11. Fig 5: View Of Fuel Injection Pump & Bolts
    GM1873034Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Be careful not to damage any mating surfaces.
  11. Remove the fuel injection pump bolts (1).
  12. Remove the fuel injection pump from the block.

    Use 2 screwdrivers to work the pump from the block towards the rear of engine keeping the pump straight.

  13. The fuel injection pump may need to be rotated in order to remove it from the vehicle.
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