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Home >> GMC >> 2001 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Controls - 4.3L - Repair Instructions) >> Repair Instructions >> Fuel Line Replacement - Engine >> Removal Procedure

Removal Procedure

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    Fig 1: View Of EVAP Pipe, Fuel Feed/Return Pipes & Engine Compartment Pipes
    GM583167Courtesy of GENERAL MOTORS COMPANY
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
  2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Resonator Replacement .
  3. Disconnect the chassis pipes (4) at the engine compartment pipes (5).
  4. Loosen the fuel pipes at the bellhousing stud clip (3).
    5. Fig 2: Locating Injector Fuel Inlet/Outlet Pipe Retainer Nuts
    GM12855Courtesy of GENERAL MOTORS COMPANY
  5. Remove the injector fuel inlet and outlet pipe retainer nuts.
  6. Remove the injector fuel inlet and the outlet pipe retainer.
    7. Fig 3: Identifying Rear Fuel Pipe Bracket Retaining Bolt
    GM12856Courtesy of GENERAL MOTORS COMPANY
  7. Remove the rear fuel pipe bracket retaining bolt.
    8. Fig 4: Expanded View Of Fuel Pipe O-Ring Seals
    GM12858Courtesy of GENERAL MOTORS COMPANY
  8. Pull straight up on the fuel pipes in order to remove the fuel pipes from the injector assembly.
  9. Remove the O-rings from both ends of the fuel feed and return pipes.
  10. Discard the O-rings.
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