LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1560 (Engine Control System & Fuel System - 6.6L (LMM) - Repair Instructions) >> Repair Instructions >> Fuel Injector Replacement (Right) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Fuel Injector Electrical Connectors
    GM1335536Courtesy of GENERAL MOTORS CORP.
  1. Remove the right fuel injection fuel feed pipes. Refer to Fuel Injection Fuel Feed Pipe Replacement - Right Side .
  2. Remove the right fuel injection fuel return pipe. Refer to Fuel Injection Fuel Return Pipe Replacement - Right Side .
    3. CAUTION: Label all the injector electrical connectors before the connectors are removed in order to prevent reconnecting to the wrong injector. Failure to properly connect the injectors in the correct sequence will cause severe engine damage.
  3. Disconnect the engine wiring harness electrical connectors from the fuel injectors.
    4. Fig 2: View Of Engine Wiring Harness Bracket & Clip
    GM1873087Courtesy of GENERAL MOTORS CORP.
  4. Remove the engine wiring harness clip (1) from the wiring harness bracket and remove the bracket (2).
    5. Fig 3: View Of Engine Wiring Harness Bracket & Bolts
    GM1873089Courtesy of GENERAL MOTORS CORP.
  5. Remove the engine wiring harness clips from the wiring harness bracket.
  6. Remove the engine wiring harness bracket bolts (1) and bracket.
    7. Fig 4: View Of Indicator Tube Bracket & Bolts
    GM1873088Courtesy of GENERAL MOTORS CORP.
  7. Remove the engine wiring harness clip from the oil level indicator tube bracket (2).
  8. Remove the oil level indicator tube bolt (3).
  9. Remove the oil level indicator tube bracket bolts (1).
  10. Remove the oil level indicator tube bracket (2).
    11. Fig 5: View Of Right Fuel Injector Bracket Bolts
    GM1335619Courtesy of GENERAL MOTORS CORP.
  11. Remove the fuel injector bracket bolts.
    12. Fig 6: View Of Special Tool J-46594 Installed In Bolt Hole In Fuel Injector Bracket
    GM1867030Courtesy of GENERAL MOTORS CORP.
  12. Install the J-46594  (1) into the bolt hole in the fuel injector bracket.
  13. Install a flare nut wrench onto the J-46594  and pull back away from the fuel injector, until the injector releases from its seat.
  14. Remove the J-46594  .
    15. Fig 7: View Of Right Fuel Injectors W/Brackets
    GM1335625Courtesy of GENERAL MOTORS CORP.
    NOTE: The unique fuel injector flow rates are programmed into the ECM according to cylinder location. Mark the injectors for correct re-installation to the same cylinders. Failure to do so may result in a poor driveability condition.
  15. Remove the fuel injectors with brackets.
    16. Fig 8: Identifying Fuel Injector Copper Washers
    GM1335628Courtesy of GENERAL MOTORS CORP.
  16. If necessary, remove the fuel injector bracket pins.
  17. Remove and discard the copper washer from the fuel injector bore.
  18. Remove and discard the O-ring from the fuel injector.
scientia non olet · About LEMON Manuals