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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 976 (Engine Controls - 6.6L (Lb7) (Introduction)) >> Repair Instructions >> Fuel Injector Feed Pipes Replacement - Right >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  2. Loosen the charged air cooler outlet duct clamp (1).
    IMPORTANT: Do not use a screwdriver or other tool to pry the hose loose. The hose can be torn or damaged. Loosen the hose by twisting.
    3. Fig 1: View Of Charged Air Cooler Outlet Duct & Clamps
    GM877275Courtesy of GENERAL MOTORS CORP.
  3. Remove the charged air cooler outlet duct.
  4. Remove the heater outlet hose bolt (2) from the generator bracket.
    5. Fig 2: View Of Heater Outlet Nut & Bolt
    GM665386Courtesy of GENERAL MOTORS CORP.
  5. Remove the fuel filter. Refer to Fuel Filter Replacement .
  6. Remove the fuel injection control module. Refer to Fuel Injection Control Module Replacement .
  7. Position the heater outlet hose out of the way.
  8. Remove exhaust gas recirculation (EGR) valve. Refer to Exhaust Gas Recirculation (EGR) Valve Replacement .
    9. Fig 3: View Of Fuel Injector Line Fittings
    GM1336209Courtesy of GENERAL MOTORS CORP.
  9. Before removing the fuel injector lines, use compressed air to blow any debris from between the injector line and fittings (1, 2). Wipe the fittings clean of debris.
  10. Spray lithium grease, GM P/N 12346293 or equivalent, between the fuel injector line and fittings (1, 2) to assist in containing any debris during removal.
  11. Remove the fuel injector feed pipe retainer bolts and retainers.
    12. 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.
  12. Remove fuel injector feed pipes.
    13. Fig 4: Right Fuel Injector Feed Pipes
    GM660502Courtesy of GENERAL MOTORS CORP.
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