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Home >> Chevrolet >> 2009 >> Cutaway 6.6 6 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 6.6L LMM - Introduction >> Repair Instructions >> Fuel Injection Pump Replacement >> Removal Procedure

Removal Procedure

    Fig 1: View Of Left Fuel Rail At Pump Pipe
    GM1335603Courtesy of GENERAL MOTORS CORP.
  1. Remove the thermostat housing crossover.
  2. Remove the left fuel rail fuel feed pipe. Refer to Fuel Injection Fuel Feed Front Pipe Replacement - Left Side .
  3. Remove the right fuel rail fuel feed pipe. Refer to Fuel Injection Fuel Feed Front Pipe Replacement - Right Side .
  4. Remove the center intake manifold. Refer to Center Intake Manifold Replacement (LMM) .
  5. Disconnect the injection pump electrical connector.
    6. Fig 2: View Of Fuel Hose Connections
    GM1335595Courtesy of GENERAL MOTORS CORP.
  6. Compress the injection pump hose clamps at the fuel line.
  7. Disconnect the hoses from fuel lines.
    8. Fig 3: View Of Fuel Injection Pump
    GM1336114Courtesy of GENERAL MOTORS CORP.
    NOTE: Ensure to remove the top bolt at the rear of the pump.
  8. Remove the fuel injection pump bolts.
    9. NOTE: Be careful not to damage any mating surfaces.
  9. 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.

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