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Home >> Cadillac >> 2023 >> CT4 V, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.7L - Repair Instructions >> Repair Instructions >> Fuel Injection Fuel Rail Assembly Replacement >> Installation Procedure

Installation Procedure

  1. 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) - Move into position

  2. NOTE:

    Install the four fuel injection fuel rail bolts hand tight only, DO NOT apply any torque.

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

    Refer to Fastener Caution .

  6. Fuel Injection Fuel Rail Bolt (2) - Tighten [4x] - Fastener Specifications
  7. Electrical Connector (3) - Connect [3x]
  8. 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

  9. GM5404599Courtesy of GENERAL MOTORS COMPANY

    Fuel Feed Intermediate Pipe (2) - Install NEW

  10. Fuel Injection Fuel Feed Pipe Bracket Bolt (1) - Install and tighten - Fastener Specifications
  11. GM5404598Courtesy of GENERAL MOTORS COMPANY

    Nut @ Fuel Feed Intermediate Pipe (1) - Install and hand tighten [2x]

  12. Nut @ Fuel Feed Intermediate Pipe (1) - Tighten [2x] - Fastener Specifications
  13. GM5399689Courtesy of GENERAL MOTORS COMPANY

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

  14. Engine Coolant Flow Control Valve (1) - Install
  15. GM5399685Courtesy of GENERAL MOTORS COMPANY

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

  16. GM5399683Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (2) @ Engine Coolant Flow Control Valve - Connect [2x]

  17. Electrical Connector (1) @ Engine Coolant Temperature Sensor - Connect
  18. GM5399673Courtesy of GENERAL MOTORS COMPANY

    Engine Coolant Thermostat Housing Inlet Pipe (3) @ Engine Coolant Flow Control Valve - Install

  19. Exhaust Manifold Outlet Pipe (2) @ Engine Coolant Flow Control Valve - Install
  20. Hose Clamp (1) - Engage [2x] - Hose Clamp Replacement Guidelines - Spring Type
  21. GM5399671Courtesy of GENERAL MOTORS COMPANY

    Engine Oil Cooler Coolant Inlet Hose (4) @ Engine Coolant Flow Control Valve - Install

  22. Radiator Inlet Hose (3) @ Engine Coolant Flow Control Valve - Install
  23. Thermostat Bypass Pipe (2) @ Engine Coolant Flow Control Valve - Install
  24. Hose Clamp (1) - Engage [3x] - Hose Clamp Replacement Guidelines - Spring Type
  25. GM5045008Courtesy of GENERAL MOTORS COMPANY

    Crankcase Vent Passage Seal (4) - Install NEW

  26. Intake Manifold Gasket (3) - Install NEW [4x]
  27. GM5507557Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold (1) - Install

  28. GM5508646Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Bolt (1) - Install and tighten [6x] - Fastener Specifications

  29. GM5507451Courtesy of GENERAL MOTORS COMPANY

    Retainer (1) - Install

  30. GM5399157Courtesy of GENERAL MOTORS COMPANY

    Charge Air Cooler Outlet Air Tube (2) @ Throttle Body (3) - Install

  31. Retainer Spring (1) - Engage
  32. GM5507441Courtesy of GENERAL MOTORS COMPANY

    Upper Intake Manifold Cover (1) - Install

  33. GM5507437Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Cover Stud (2) - Install and tighten [3x] - Fastener Specifications

  34. Intake Manifold Cover Bolt (1) - Install and tighten [2x] - Fastener Specifications
  35. GM5402098Courtesy of GENERAL MOTORS COMPANY

    Evaporative Emission Canister Purge Pump (2) - Install

  36. Evaporative Emission Canister Purge Pump Bolt (1) - Install and tighten [3x] - Fastener Specifications
  37. GM5504108Courtesy of GENERAL MOTORS COMPANY

    Engine Wiring Harness (4) - Reposition

  38. Retainer (3) - Install [4x]
  39. Electrical Connector (2) - Connect [2x]
  40. Engine Wiring Harness Bolt (1) - Install and tighten - Fastener Specifications
  41. GM5509132Courtesy of GENERAL MOTORS COMPANY

    Throttle Body Electrical Connector (1) - Connect

  42. GM5504095Courtesy of GENERAL MOTORS COMPANY

    Radiator Surge Tank Inlet Hose (3) - Reposition

  43. Retainer (2) - Install [3x]
  44. Evaporative Emission Canister Purge Tube (1) - Connect
  45. GM5504092Courtesy of GENERAL MOTORS COMPANY

    Evaporative Emission Pipe (2) - Connect

  46. Fuel Feed Pipe (1) - Connect
  47. GM5456829Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Ensure the intake manifold cover insulator retainers fully engage the intake manifold cover studs.

    Intake Manifold Cover Insulator (1) - Install

  48. GM5456746Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Cover Bolt (1) - Install and tighten - Fastener Specifications

  49. GM5432174Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Cover (1) @ Upper Intake Manifold Bracket (2) - Install

  50. GM5432171Courtesy of GENERAL MOTORS COMPANY

    Push down on the front of the intake manifold cover (2).

  51. Intake Manifold Cover Bolt (1) - Install and tighten [2x] - Fastener Specifications
  52. Install the oil fill cap.
  53. GM5517311Courtesy of GENERAL MOTORS COMPANY

    Oil Level Indicator Tube (1) - Install

  54. GM5517312Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

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

  55. GM5517313Courtesy of GENERAL MOTORS COMPANY

    Oil Level Indicator (1) - Install

  56. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection
  57. Fill the cooling system. Cooling System Draining and Filling (L3B Static Fill) , or Cooling System Draining and Filling (L3B GE 47716)
  58. Pressurize the fuel system and inspect for leaks.
    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.
  59. Perform the intake system learned values reset. Intake System Learned Values Reset 
  60. Perform the throttle body idle air flow compensation reset. Throttle Body Idle Air Flow Compensation Reset