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Home >> Cadillac >> 2019 >> XT4 Sport, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.0L (LSY) - Repair Instructions >> Repair Instructions >> Fuel Injection Fuel Rail Assembly Replacement >> Installation Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Installation Procedure

  1. Clean the fuel injector bores and clean the fuel injectors, if the fuel injectors will be re-installed. Fuel Rail and Injectors Cleaning and Inspection
  2. Fuel Injection Fuel Rail (1) - Install
    GM4995644Courtesy of GENERAL MOTORS COMPANY
    NOTE:

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

  3. Fuel Injection Fuel Rail Bolt (1, 2, 3) - Install [4x]
    GM4995756Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Install the 4 fuel injection fuel rail bolts with zero torque.

  4. Tighten the 2 outer fuel injection fuel rail bolt (1, 3) alternating in steps of 1/2 turn, until the fuel injection fuel rail (4) is fully seated.
  5. CAUTION:

    Refer to Fastener Caution .

  6. Fuel Injection Fuel Rail Bolt (1, 2, 3) - Tighten [4x] 36 N.m (27 lb ft)
  7. Electrical Connector (5, 6) - Connect [2x]
  8. Fuel Injection Fuel Rail Insulator (1) - Install
    GM4995197Courtesy 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 cancelling 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.

  9. Wiring Harness (2) @ Fuel Injection Fuel Rail Insulator (1) - Install
  10. Install the fuel feed intermediate pipe. Fuel Feed Intermediate Pipe Replacement 
  11. Install the engine coolant flow control valve (1). Engine Coolant Flow Control Valve Replacement
    GM5065029Courtesy of GENERAL MOTORS COMPANY
  12. Install the intake manifold and throttle body together as an assembly. Intake Manifold Replacement
  13. Install the charge air cooler outlet air hose. Charge Air Cooler Outlet Air Hose Replacement 
  14. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection
  15. 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.