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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 60 (Engine Controls And Fuel - 2.7L (L3B) - Repair Instructions) >> Repair Instructions >> Fuel Rail Pressure Sensor Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
    WARNING:

    Refer to Diesel/Gasoline Vapors Warning .

    WARNING:

    Refer to Safety Glasses Warning .

  1. Relieve the fuel system pressure. Fuel Pressure Relief 
  2. Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection
  3. GM5517313

    Oil Level Indicator (1) - Remove

  4. GM5517312

    Oil Level Indicator Tube Bracket Bolt (1) - Remove

  5. GM5517311

    Oil Level Indicator Tube (1) - Remove

  6. Inspect the oil level indicator tube seal (2) and replace as necessary.
  7. Remove the oil fill cap.
  8. GM5432171

    Intake Manifold Cover Bolt (1) - Remove [2x]

  9. Lift up on the front of the intake manifold cover (2).
  10. GM5432174

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

  11. GM5456746

    Intake Manifold Cover Bolt (1) - Remove

  12. GM5456829

    Intake Manifold Cover Insulator (1) - Remove

  13. GM5504092
    WARNING:

    Refer to Diesel/Gasoline Vapors Warning .

    WARNING:

    Refer to Safety Glasses Warning .

    Fuel Feed Pipe (1) - Disconnect and reposition

  14. Evaporative Emission Pipe (2) - Disconnect and reposition
  15. GM5504095

    Evaporative Emission Canister Purge Tube (1) - Disconnect and reposition

  16. Retainer (2) - Unclip [3x]
  17. Radiator Surge Tank Inlet Hose (3) - Reposition
  18. GM5509132

    Throttle Body Electrical Connector (1) - Disconnect

  19. GM5504108

    Engine Wiring Harness Bolt (1) - Remove

  20. Electrical Connector (2) - Disconnect [2x]
  21. Retainer (3) - Unclip [4x]
  22. Engine Wiring Harness (4) - Reposition
  23. GM5402098

    Evaporative Emission Canister Purge Pump Bolt (1) - Remove [3x]

  24. Evaporative Emission Canister Purge Pump (2) - Remove
  25. GM5507437

    Intake Manifold Cover Bolt (1) - Remove [2x]

  26. Intake Manifold Cover Stud (2) - Remove [3x]
  27. GM5507441

    Upper Intake Manifold Cover (1) - Remove

  28. GM5399157

    Retainer Spring (1) - Release

  29. Charge Air Cooler Outlet Air Tube (2) @ Throttle Body (3) - Remove
  30. GM5507451

    Retainer (1) - Unclip

  31. GM5508646

    Intake Manifold Bolt (1) - Remove [6x]

  32. GM5507557

    Intake Manifold (1) - Remove

  33. GM5045008

    Crankcase Vent Passage Seal (4) - Remove and DISCARD

  34. Intake Manifold Gasket (3) - Remove and DISCARD [4x]
  35. GM5404945

    Electrical Connector (1) @ Fuel Injection Fuel Rail Fuel Pressure Sensor - Disconnect

  36. NOTE:

    DO NOT apply force to the plastic housing of the sensor. Apply force only at the attached hexagon when loosening or tightening the sensor.

    NOTE:

    Some fuel may leak from the fuel injection fuel rail fuel pressure sensor orifice after the sensor is removed. Dry the area around this orifice after the removal of the sensor using a lint free cloth and inspect the fuel injection fuel rail fuel pressure sensor sealing surface. The surface should be free of fuel, debris, and burrs.

  37. Fuel Injection Fuel Rail Fuel Pressure Sensor (2) @ Fuel Injection Fuel Rail - Remove