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Home >> Cadillac >> 2023 >> CT4 Luxury, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.0L - Repair Instructions >> Repair Instructions >> Fuel Rail Pressure Sensor Replacement >> Installation Procedure

Installation Procedure

  1. GM5311551Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Ensure the fuel rail threads are clean and free of any excess fuel, or the fuel injection fuel rail fuel pressure sensor will NOT seal properly.

    Dry the fuel pressure sensor bore in the fuel rail with a lint free cloth.

  2. Inspect the fuel pressure sensor bore in the fuel rail. The bore should be free of fuel, debris, and burrs.
  3. Lubricate the fuel pressure sensor bore in the fuel rail with one drop of clean engine oil.
  4. Lubricate the threads and sealing surface of the NEW fuel injection fuel rail fuel pressure sensor with one drop of clean engine oil.
  5. Install the fuel injection fuel rail fuel pressure sensor hand tight.
  6. Remove the fuel pressure sensor and re-lubricate the bore, threads, and sealing area.
    7. CAUTION:

    Refer to Component Fastener Tightening Caution .

    NOTE:

    Applying force to the plastic housing of the sensor may damage the sensor. To tighten or loosen, apply force only to the attached hexagon.

  7. Fuel Injection Fuel Rail Fuel Pressure Sensor (1) - Install and tighten - Fastener Specifications
  8. Connect the electrical connector.
  9. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection
    10. NOTE:

    If a fuel leak occurs at the fuel rail, the fuel rail will need to be replaced.

  10. Pressurize the fuel system and inspect for leaks.
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