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Home › Chevrolet › 2022 › Trailblazer L › Repair and Diagnosis › Engine Performance › System › Engine Controls And Fuel - 1.2L (LIH) - Repair Instructions › Repair Instructions › Fuel Rail Pressure Sensor Replacement › Installation Procedure

Installation Procedure

  1. GM5392492Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    BEFORE installing the fuel injection fuel rail fuel pressure sensor, the direct fuel injection fuel rail threads MUST be clean and free of any fuel otherwise the sensor will NOT seal properly.

    To install the NEW fuel injection fuel rail fuel pressure sensor (1) properly, perform the following steps:

    1. Lubricate the sensor threads and sealing surface with one drop of clean engine oil.
    2. Install the sensor and hand tighten.
    3. Remove the sensor.
    4. Re-lubricate the sensor threads and sealing surface with one drop of clean engine oil.
      5. CAUTION:

      Component Fastener Tightening Caution

    5. Fuel Injection Fuel Rail Fuel Pressure Sensor (1) - Install and tighten 32.5 N.m (24 lb ft)
  2. GM5392491Courtesy of GENERAL MOTORS COMPANY

    Fuel Injection Fuel Rail Fuel Pressure Sensor Electrical Connector (1) - Connect

  3. Install the NEW tape.
  4. Charge Air Cooler Inlet Air Hose - Install - Charge Air Cooler Inlet Air Hose Replacement 
  5. Air Cleaner Assembly - Install - Air Cleaner Assembly Replacement 
  6. 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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