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Home >> GMC >> 2018 >> Terrain SL >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 1.5L (LYX) - Repair Instructions >> Repair Instructions >> Fuel Injector Replacement >> Installation Procedure

Installation Procedure

    Fig 1: Combustion Fuel Injector Seals
    GM4823862Courtesy of GENERAL MOTORS COMPANY
  1. ANY fuel injectors being reused MUST have NEW combustion fuel injector seals (1) installed. Fuel Rail and Injectors Installation
  2. Fig 2: Calibration Tool
    GM4823870Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    ALWAYS install a NEW fuel injector seal when the fuel injector is removed from the fuel injection fuel rail.

  3. Install the EN-51146 - 2 - 5  calibration tool (1) on the fuel injector.
  4. Lightly coat the NEW fuel injector seal (2) with clean engine oil. Adhesives, Fluids, Lubricants, and Sealers
  5. Fig 3: Inner And Outer Fuel Injector Bolts With Wiring Harness Connectors
    GM4823871Courtesy of GENERAL MOTORS COMPANY
  6. Install the fuel injector (1) into the fuel injection fuel rail.
  7. CAUTION:

    Refer to Fastener Caution .

    CAUTION:

    This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component.

  8. Perform the following steps to install the NEW inner and outer fuel injector bolts (2):
    1. Apply one drop of thread locking adhesive to each bolt. Adhesives, Fluids, Lubricants, and Sealers
    2. Install the bolts and tighten to 5 N.m (44 lb in).
  9. Connect the wiring harness connector (3).
  10. Install the fuel injection fuel rail assembly. Fuel Injection Fuel Rail Assembly Replacement