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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Controls - 6.6L - Introduction (2 Of 2)) >> Repair Instructions >> Fuel Injection Pump Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Install the fuel injection pump to the block.
    Fig 1: Installing Fuel Injection Pump
    GM1336114Courtesy of GENERAL MOTORS CORP.
  2. Install the fuel injection pump bolts.

    Tighten:  Tighten the bolts to 21 N.m (15 lb ft).

  3. Install the hoses to fuel lines.
    Fig 2: View Of Fuel Hose Connections
    GM1335595Courtesy of GENERAL MOTORS CORP.
  4. Position the injection pump hose clamps at the fuel line.
  5. Install the center intake manifold. Refer to Intake Manifold Replacement - Center .
  6. Install the inlet pipe.
    Fig 3: View Of Left Fuel Rail At Pump Pipe
    GM1335603Courtesy of GENERAL MOTORS CORP.
  7. Connect the fuel rail inlet pipe to the injection pump and rail.

    Tighten:  Tighten the fittings to 41 N.m (30 lb ft).

    8. Fig 4: View Of Fuel Rail Balance Pipe & Bolts
    GM1335586Courtesy of GENERAL MOTORS CORP.
  8. Connect the fuel balance pipe fitting to the right fuel rail.

    Tighten:  Tighten the fitting to 41 N.m (30 lb ft).

  9. Install the fuel balance pipe retainer bolts.

    Tighten:  Tighten the bolts to 10 N.m (89 lb in).

  10. Install the thermostat housing crossover. Refer to Thermostat Housing Crossover Replacement (6.6L (LLY) Engine) .
    11. Fig 5: View Of Generator Mounting Bracket
    GM1334912Courtesy of GENERAL MOTORS CORP.
  11. Install the generator bracket and bolts.

    Tighten:  Tighten the bolts to 46 N.m (34 lb ft).

  12. Install the generator. Refer to Generator Replacement (4.8L, 5.3L, and 6.0L Engines) or Generator Replacement (6.6L (LLY) Engine) or Generator Replacement (8.1L Engine) .
    13. Fig 6: View Of Drive Belt Tensioner
    GM1334909Courtesy of GENERAL MOTORS CORP.
  13. Install the drive belt tensioner and bolt.

    Tighten:  Tighten the bolt to 50 N.m (37 lb ft).

  14. Install the heater outlet hose bolt to the generator bracket

    Tighten:  Tighten the bolt to 21 N.m (15 lb ft).

  15. Install the oil level indicator tube bracket bolt.

    Tighten:  Tighten the bolt to 21 N.m (15 lb ft).

    16. Fig 7: Installing A/C Compressor/Power Steering Pump Bracket
    GM1602063Courtesy of GENERAL MOTORS CORP.
  16. Install the A/C compressor/power steering pump bracket and bolts.

    Tighten:  Tighten the bolt to 46 N.m (34 lb ft).

    17. Fig 8: View Of Rear Power Steering Pump, Bracket & Bolts
    GM656330Courtesy of GENERAL MOTORS CORP.
  17. Position the power steering pump, with the hoses attached, to the bracket.
  18. Install the power steering pump bracket rear bolts (1).

    Tighten:  Tighten the bolts to 50 N.m (37 lb ft).

    19. Fig 9: View Of A/C Compressor & Bolts
    GM652573Courtesy of GENERAL MOTORS CORP.
  19. Position the A/C compressor, with the hoses attached, to the bracket.
  20. Install the A/C compressor bolts.

    Tighten:  Tighten the bolts to 50 N.m (37 lb ft).

  21. Connect the A/C cut out switch electrical connector.
  22. Connect the A/C compressor clutch electrical connector.
  23. Position the battery cables to the bracket.
  24. Install the battery cable junction block bolt to the power steering pump bracket.
    Fig 10: View Of Battery Cable Junction Block Bolt At Power Steering Pump Bracket
    GM1409332Courtesy of GENERAL MOTORS CORP.

    Tighten:  Tighten the bolts to 9 N.m (80 lb in).

  25. Install the fan. Refer to Fan Replacement (Diesel) or Fan Replacement (Gasoline) .
  26. Install the bracket.
    Fig 11: Installing Tube Bracket Bolts
    GM1601448Courtesy of GENERAL MOTORS CORP.
  27. Install the oil level indicator tube bracket bolts.

    Tighten:  Tighten the bolts to 21 N.m (15 lb ft).

  28. Install the oil level indicator tube bolt.

    Tighten:  Tighten the bolt to 21 N.m (15 lb ft).

  29. Install the wiring harness retainer to the bracket.
  30. Fill the cooling system. Refer to Draining and Filling Cooling System (w/RPO HP2) or Draining and Filling Cooling System (w/o RPO HP2) .
  31. Install the air cleaner outlet duct. Refer to Crankcase Ventilation Hoses/Pipes Replacement .
  32. Connect negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) .
  33. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  34. Prime the fuel system. Refer to Fuel System Priming .
  35. Start the engine. If the engine stalls, repeat the above step.
  36. Once the engine starts, inspect for fuel leaks.
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