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Home >> GMC >> 2020 >> Terrain Denali, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Mechanical - 1.5L (LYX)) >> Repair Instructions >> Fuel Rail and Injectors Installation >> Fuel Injector Installation Procedure

Fuel Injector Installation Procedure

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  1. GM3709764Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do not remove the fuel injectors unless inspection indicates replacement is necessary. Do not remove the EN-51146-1-6  demounting screw and EN-51146-1-1  support unless the fuel injector is being replaced.

    If one or more fuel injectors are being replaced, remove the bolts (1) and EN-51146-100  plate (2).

  2. Remove the EN-51146-1-6  demounting screws and EN-51146-1-1  supports (3) for all fuel injectors that are being replaced.
  3. Remove and discard the fuel injectors (5) that are being replaced.
  4. Lubricate the O-ring with one drop of clean engine oil. Install a new fuel injector (5).
  5. CAUTION:

    Refer to Fastener Caution .

  6. Install the NEW fuel injector screws (4) to the NEW fuel injectors (5) and tighten to 5 N.m (44 lb in).
  7. Connect the fuel injector wiring harness plugs.