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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Controls - 6.6L - Introduction (2 Of 2)) >> Repair Instructions >> Fuel Injector Feed Pipes Replacement - Right >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  2. Using a pick or a small flat-bladed screw driver, remove and discard the quick connect fitting clip from the charged air cooler outlet duct.
  3. Remove the charged air cooler outlet duct from the intake.
    Fig 1: Removing Charged Air Cooler Outlet Duct
    GM1653035Courtesy of GENERAL MOTORS CORP.
  4. Remove the fuel filter. Refer to Fuel Filter Replacement .
  5. Remove the fuel rail pressure sensor. Refer to Fuel Rail Pressure (FRP) Sensor Replacement .
  6. Prior to removing the fuel injector pipes, use compressed air to blow any debris from between the injector line and fittings. Wipe the fittings clean of debris.
  7. Spray lithium grease, GM P/N 12346293 or equivalent, between the fuel injector line and fittings to assist in containing any debris during removal.
    8. NOTE: DO NOT use compressed air to clean debris from the fuel injector inlet after the fuel line is removed. Using compressed air can allow debris to enter the fuel injector inlet and damage the fuel injector.
    Fig 2: View Of Fuel Injector Pipes
    GM1335614Courtesy of GENERAL MOTORS CORP.
  8. Remove the fuel injector pipes.
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