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Home >> GMC >> 2023 >> Canyon Elevation, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.7L - Repair Instructions >> Repair Instructions >> Fuel Injector Replacement >> Installation Procedure

Installation Procedure

  1. GM5064715Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The fuel injector seal spacer is directional. If installed in the incorrect orientation, a fuel leak can result. When installed correctly, the fuel injector seal spacer will be flush with the injector.

    Fuel Injector Seal Spacer (1) - Install NEW [4x]

  2. Fuel Injector Seal (2) - Install NEW [4x]
    3. NOTE:

    Arrows show proper orientation to install the bushing. Will fit flush against the injector.

  3. Fuel Injector Bushing (3) - Install [4x]
  4. GM5064709Courtesy of GENERAL MOTORS COMPANY

    Holding the largest diameter/body (2) of the injector only, insert the injector assembly (2) into the fuel rail. Ensure correct orientation of the electrical connector.

  5. Fuel Injector Retainer (1) - Install NEW [4x]
  6. GM4840511Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    DO NOT use any type of lubricant when installing the NEW combustion seals on the fuel injector tip.

    Install EN-51955-1  Long Protector (1) onto the fuel injector tip, covering the first recessed area closest to the tip. Place a NEW fuel injector nozzle housing seal (2) on EN-51955-1  Long Protector (1).

  7. Using EN-51955-4  Pusher (3), install the fuel injector nozzle housing seal (2) into the recessed area (4) of the fuel injector, then remove the EN-51955-1  Long Protector.
  8. Compress the fuel injector nozzle housing seal (2) using EN-51955-3  Pre-Sizer (5).
  9. Using EN-51955-5  Sizer (6), resize the fuel injector nozzle housing seal.
  10. Install EN-51955-2  Short Protector (7) onto the fuel injector tip. Place a second NEW fuel injector nozzle housing seal (8) on EN-51105-2  Short Protector (7).
  11. Using EN-51955-4  Pusher (3), install the fuel injector nozzle housing seal (8) into the remaining recessed area (9) of the fuel injector, then remove EN-51105-2  Short Protector.
  12. Compress the fuel injector nozzle housing seal (8) using EN-51955-3  Pre-Sizer (5).
  13. Using EN-51955-5  Sizer (6), resize the fuel injector nozzle housing seal.
  14. GM2918356Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The fuel injector nozzle housing seals must fit properly in the relative groove. Overlapping of the fuel injector nozzle housing seals with the external surface of the injector must be avoided.

    Check both of the fuel injector nozzle housing seals on each fuel injector for correct seat:

    • The fuel injector nozzle housing seal must not be too large, buckled, or corrugated (1)
    • The fuel injector nozzle housing seal must be fixed tight and accurate (2)
  15. If the fuel injector nozzle housing seals are not installed correctly, remove the incorrect fuel injector nozzle housing seal and replace with a NEW fuel injector nozzle housing seal.
  16. GM5133846Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Hand place the fuel injection fuel rail into the position on the cylinder head.

    Fuel Injection Fuel Rail (1) - Install

  17. Fuel Injection Fuel Rail Bolt (2) - Install and hand tighten [4x]
  18. Tighten the 2 outer fuel injection fuel rail bolts (2) by alternating in steps of 1/2 turn, until the fuel injection fuel rail (1) is fully seated.
    19. CAUTION:

    Refer to Fastener Caution .

  19. Fuel Injection Fuel Rail Bolt (2) - Tighten [4x] - Fastener Specifications
  20. Connect the electrical connectors. (3)
  21. GM6139220Courtesy of GENERAL MOTORS COMPANY

    Fuel Feed Intermediate Pipe (2) - Install NEW

  22. Fuel Injection Fuel Feed Pipe Bracket Bolt (1) - Install and tighten - Fastener Specifications
  23. GM6139215Courtesy of GENERAL MOTORS COMPANY

    Fuel Feed Intermediate Pipe Nut (1) @ Fuel Feed Intermediate Pipe - Tighten [2x] - Fastener Specifications

  24. GM5132483Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    The noise cancelling foam component MUST be replaced if it has been exposed to engine fluids. Failure to replace the noise canceling foam component that has been exposed to engine fluids may result in an engine fire resulting in catastrophic engine damage, and possible injury or death.

    Fuel Injection Fuel Rail Noise Shield (1) - Install

  25. GM6158069Courtesy of GENERAL MOTORS COMPANY

    Engine Coolant Flow Control Valve Seal (2) - Install NEW

  26. Engine Coolant Flow Control Valve (1) - Install
  27. GM6154887Courtesy of GENERAL MOTORS COMPANY

    Engine Coolant Flow Control Valve Bolt (1) - Install and tighten [5x] - Fastener Specifications

  28. GM6161117Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) @ Engine Coolant Flow Control Valve - Connect [3x]

  29. GM6158261Courtesy of GENERAL MOTORS COMPANY

    Engine Coolant Thermostat Housing Inlet Pipe (2) @ Engine Coolant Flow Control Valve - Install

  30. Thermostat Bypass Hose Clamp (1) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  31. GM6264860Courtesy of GENERAL MOTORS COMPANY

    Thermostat Bypass Hose (2) @ Exhaust Manifold Outlet Pipe - Install

  32. Thermostat Bypass Hose Clamp (1) @ Exhaust Manifold Outlet Pipe - Engage - Hose Clamp Replacement Guidelines - Spring Type
  33. GM6158314Courtesy of GENERAL MOTORS COMPANY

    Engine Coolant Thermostat Housing Bracket Bolt (1) - Install and tighten - Fastener Specifications

  34. GM6150694Courtesy of GENERAL MOTORS COMPANY

    Exhaust Manifold Outlet Pipe Bolt (2) - Install and tighten - Fastener Specifications

  35. GM6144738Courtesy of GENERAL MOTORS COMPANY

    Engine Oil Cooler Coolant Inlet Hose (2) @ Engine Coolant Flow Control Valve - Install

  36. Engine Oil Cooler Coolant Inlet Hose Clamp (1) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  37. GM6145422Courtesy of GENERAL MOTORS COMPANY

    Thermostat Bypass Pipe (2) @ Engine Coolant Flow Control Valve - Install

  38. Thermostat Bypass Hose Clamp (1) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  39. GM6145296Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Thermostat Bypass Pipe Bolt (1) - Install and tighten - Fastener Specifications

  40. GM6171474Courtesy of GENERAL MOTORS COMPANY

    Radiator Inlet Hose (2) @ Engine Coolant Flow Control Valve - Install

  41. Radiator Inlet Hose Clamp (1) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  42. Install underbody panels as necessary. Underbody Panel Component Locator
  43. GM5517374Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Gasket (1) - Install NEW [4x]

  44. GM5517403Courtesy of GENERAL MOTORS COMPANY

    Crankcase Vent Passage Seal (1) - Install NEW

  45. GM5145544Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold (2) - Install

  46. Intake Manifold Bolt (1) - Install and hand tighten [6x]
  47. Intake Manifold Bolt (1) - Tighten in sequence [6x] - Fastener Specifications
  48. GM5145608Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Cover (1) - Install

  49. GM6194232Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Cover Bolt (1) - Install and tighten [2x] - Fastener Specifications

  50. Reposition the wiring harness.
  51. Connect the electrical connectors and install the wiring harness retainers as necessary.
  52. GM6138627Courtesy of GENERAL MOTORS COMPANY

    Evaporative Emission Canister Purge Pump (2) - Install

  53. Evaporative Emission Canister Purge Pump Bolt (1) - Install and tighten [3x] - Fastener Specifications
  54. Connect the electrical connector.
  55. GM6193416Courtesy of GENERAL MOTORS COMPANY

    Evaporative Emission Canister Purge Tube (1) - Connect - Plastic Collar Quick Connect Fitting Service 

  56. GM6154110Courtesy of GENERAL MOTORS COMPANY

    Evaporative Emission Front Pipe (1) - Connect - Plastic Collar Quick Connect Fitting Service 

  57. GM6138619Courtesy of GENERAL MOTORS COMPANY

    Fuel Feed Pipe Bolt (1) - Install and tighten - Fastener Specifications

  58. GM6193397Courtesy of GENERAL MOTORS COMPANY

    Transmission Vent Hose Clip (3) @ Fuel Feed Front Pipe Bracket (2) - Engage

  59. Fuel Feed and Evaporative Emission Canister Vent Pipe Clip (1) @ Fuel Feed Front Pipe Bracket (2) - Engage
  60. GM5517378Courtesy of GENERAL MOTORS COMPANY

    Oil Level Indicator Tube Bracket Bolt (1) - Install and tighten - Fastener Specifications

  61. GM5517377Courtesy of GENERAL MOTORS COMPANY

    Oil Level Indicator (1) - Install

  62. GM6158004Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Verify the charge air cooler inlet and outlet air tube quick connect seal condition and location prior to installation. Seal must be evenly seated in the quick connector body and sealing surface must be free of deformation and damage. Deformed or damaged seals can lead to reduced engine power and/or engine stalling.

    NOTE:

    DO NOT insert fingers inside quick connect to manipulate duct during disassembly/assembly. Rubber pad gloves increase risk to dislodge seal.

    Charge Air Cooler Outlet Air Hose (2) - Install

  63. Engage the charge air cooler outlet air hose retainer spring (1).
  64. GM6141089Courtesy of GENERAL MOTORS COMPANY

    Air Cleaner Outlet Duct (1) - Install

  65. GM6141084Courtesy of GENERAL MOTORS COMPANY

    Air Cleaner Outlet Duct Clamp (2) - Tighten - Fastener Specifications

  66. Evaporative Emission Canister Purge Tube (1) - Connect - Plastic Collar Quick Connect Fitting Service 
  67. Connect the electrical connector.
  68. GM6141079Courtesy of GENERAL MOTORS COMPANY

    Air Cleaner Outlet Duct Clamp (3) - Tighten - Fastener Specifications

  69. Positive Crankcase Ventilation Tube (2) - Connect - Plastic Collar Quick Connect Fitting Service 
  70. Air Cleaner Outlet Duct Nut (1) - Install and tighten [2x] - Fastener Specifications
  71. GM6148346Courtesy of GENERAL MOTORS COMPANY

    {If equipped} Intake Manifold Cover (1) @ Upper Intake Manifold Bracket (2) - Install

  72. GM6148335Courtesy of GENERAL MOTORS COMPANY

    If equipped, push down on the front of the intake manifold cover (2).

  73. {If equipped} Intake Manifold Cover Bolt (1) - Install and tighten [2x] - Fastener Specifications
  74. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection
  75. Fill the cooling system. Cooling System Draining and Filling (GE 47716) , or Cooling System Draining and Filling (Static)
  76. Inspect for fuel leaks using the following procedure:
    1. Turn ON the ignition with the engine OFF for 2 seconds.
    2. Turn OFF the ignition for 10 seconds.
    3. Turn ON the ignition with the engine OFF.
    4. Inspect for fuel leaks.
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