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Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1611 (Engine Control System & Fuel System - 6.6L (LMM) - Repair Instructions) >> Repair Instructions >> Fuel Injection Fuel Rail Assembly Replacement - Bank 2 >> Removal Procedure
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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 Line Bracket & Nut
    GM1378748Courtesy of GENERAL MOTORS CORP.
  1. Remove the fuel line bracket nut.
  2. Remove the fuel line bracket from the stud.
  3. Remove the charge air cooler inlet pipe. Refer to Charge Air Cooler Inlet Pipe Replacement .
  4. Remove the positive crankcase ventilation (PCV) hose/pipe. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube Replacement .
  5. Remove the right fuel rail fuel feed pipe. Refer to Fuel Injection Fuel Feed Front Pipe Replacement - Right Side .
  6. Remove the fuel return pipe. Refer to Fuel Return Pipe Replacement .
    7. Fig 2: View Of Fuel Line Bracket & Bolts
    GM1872505Courtesy of GENERAL MOTORS CORP.
  7. Remove the fuel pipe bracket bolt (4) and bracket (3).
    8. Fig 3: View Of Left Fuel Rail Feed Pipe Fittings
    GM1387871Courtesy of GENERAL MOTORS CORP.
  8. Loosen the left fuel rail fuel feed pipe fittings (1).
    9. Fig 4: Left Fuel Rail Fuel Feed Pipe
    GM1335603Courtesy of GENERAL MOTORS CORP.
  9. Remove the left fuel rail fuel feed pipe.
    10. Fig 5: View Of Left Fuel Injector Pipes
    GM1335608Courtesy of GENERAL MOTORS CORP.
  10. 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.
  11. Spray lithium grease, GM P/N 12346293 or equivalent, between the fuel injector line and fittings to assist in containing any debris during removal.
    12. CAUTION: 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.
  12. Remove the left fuel injection fuel feed pipes.
    13. Fig 6: View Of Left Fuel Rail & Bracket
    GM1335616Courtesy of GENERAL MOTORS CORP.
  13. Remove the fuel injection fuel rail bolts.
  14. Remove the fuel injection fuel rail and bracket.
  15. Reposition the fuel hose clamp at the rail and remove the fuel hose, if required.
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