LEMON Manuals: Even more car manuals for everyone
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 >> Removal Procedure

Removal Procedure

WARNING:

Wear safety glasses in order to avoid eye damage.

WARNING:

Fuel/gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.

CAUTION:

When working on the fuel rail and fuel injectors, always maintain a clean work surface. Failure to maintain a clean work surface can result in contaminant on the injector seals and cause leaks.

  1. Remove the fuel injection fuel rail assembly. Fuel Injection Fuel Rail Assembly Replacement 
  2. Fig 1: Calibration Tools
    GM4823860Courtesy of GENERAL MOTORS COMPANY
  3. Do NOT remove the EN-51146 - 2 - 5  calibration tools (1) except for when servicing the combustion fuel injector seals.
  4. Use a suitable wrench (2) to hold the EN-51146 - 1 - 1  support (3) while removing the corresponding plate screw (4).
  5. Use the previous instructions to remove ALL remaining plate screws (4).
  6. Remove the EN-51146 - 100  plate (5).
  7. Fig 2: Support Combinations
    GM4826350Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The EN-51146 - 1 - 1  supports MUST remain installed at ANY fuel injectors that will NOT be removed or replaced.

  8. Remove the EN-51146 - 1 - 6  demounting screw and EN-51146 - 1 - 1  support combinations (1) from the inner and outer fuel injector bolt holes for ANY fuel injector being serviced or replaced.
  9. Fig 3: Wiring Harness Connector And Fuel Injector
    GM4823861Courtesy of GENERAL MOTORS COMPANY
  10. Disconnect the wiring harness connector (1).
  11. Remove the fuel injector (2) from the fuel injection fuel rail.