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Home >> Chevrolet >> 2004 >> Chevy Express G2500, Van Cargo Extended, 4.3 X, 4L60E/M30 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 4.3L (Introduction) >> Repair Instructions >> Fuel Hose/Pipes Replacement - Engine Compartment >> Removal Procedure

Removal Procedure

    Fig 1: Fuel, EVAP, Chassis Fuel (Feed & Return Pipes)
    GM588985Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
  1. Disconnect the negative battery cable.
  2. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure .
  3. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Resonator Replacement .
  4. Loosen the fuel and evaporative emissions (EVAP) pipe retainer (2) nut at the bellhousing stud.
  5. Disconnect the chassis fuel feed and return pipes (3) at the engine compartment fuel feed and return pipes (4).
    6. Fig 2: View Of Injector Fuel Inlet & Outlet Pipe Retainer Nuts
    GM12855Courtesy of GENERAL MOTORS CORP.
  6. Remove the injector fuel inlet and outlet pipe retainer nuts.
  7. Remove the injector fuel inlet and the outlet pipe retainer.
    8. Fig 3: View Of Retaining Bolt At Rear Fuel Pipe Bracket
    GM12856Courtesy of GENERAL MOTORS CORP.
  8. Remove the retaining bolt from the rear fuel pipe bracket.
    9. Fig 4: View Of O-Ring Seals At Fuel Feed & Return Pipes
    GM12858Courtesy of GENERAL MOTORS CORP.
  9. Pull straight up on the fuel pipes in order to remove the fuel pipes from the injector assembly.
  10. Remove the O-ring seals from both ends of the fuel feed and return pipes.
  11. Discard the O-ring seals.
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