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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 908 (Engine Controls And Fuel - 6.6L (LMM) - Introduction (2 Of 2)) >> Repair Instructions >> Fuel Injection Fuel Feed Pipe Replacement - Left Side >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2007 GMC Sierra, 2007 GMC Cab & Chassis Sierra, 2007 Chevrolet Silverado, and 2007 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Fuel Line Bracket & Nut
    GM1378748Courtesy of GENERAL MOTORS CORP.
  1. Remove the charge air cooler inlet pipe. Refer to Charge Air Cooler Inlet Pipe Replacement .
  2. Remove the water outlet. Refer to Water Outlet Tube Replacement (LMM) or Water Outlet Tube Replacement (LU3) .
  3. Remove the glow plug control module and bracket. Refer to Glow Plug Control Module Replacement .
  4. Disconnect the chassis fuel feed and return line quick connect fittings from the engine fuel feed and return pipes. Refer to Metal Collar Quick Connect Fitting Service .
  5. Remove the fuel line bracket nut.
  6. Remove the fuel line bracket from the stud.
    7. Fig 2: View Of Fuel Line Bracket & Bolts
    GM1872505Courtesy of GENERAL MOTORS CORP.
  7. Remove the engine wiring harness clip from the fuel line bracket.
  8. Remove the fuel line bracket bolts (1 and 4), clamp (2), and bracket (3).
    9. Fig 3: View Of Left Fuel Injector Pipes
    GM1335608Courtesy of GENERAL MOTORS CORP.
  9. 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.
  10. Spray lithium grease, GM P/N 12346293 or equivalent, between the fuel injector line and fittings to assist in containing any debris during removal.
    11. 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.
  11. Remove the left fuel injector pipes.
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