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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1071 (Engine Controls - 3.6L (Ly7) (Introduction)) >> Repair Instructions >> Fuel Hose/Pipes Replacement - Chassis >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
    CAUTION: In order to Reduce the Risk of Fire and Personal Injury:
    • If nylon fuel pipes are nicked, scratched or damaged during installation, Do Not attempt to repair the sections of the nylon fuel pipes. Replace them.
    • When installing new fuel pipes, Do Not hammer directly on the fuel harness body clips as it may damage the nylon pipes resulting in a possible fuel leak.
    • Always cover nylon vapor pipes with a wet towel before using a torch near them. Also, never expose the vehicle to temperatures higher than 115°C (239°F) for more than one hour, or more than 90°C (194°F) for any extended period.
    • Before connecting fuel pipe fittings, always apply a few drops of clean engine oil to the male pipe ends. This will ensure proper reconnection and prevent a possible fuel leak. (During normal operation, the O-rings located in the female connector will swell and may prevent proper reconnection if not lubricated.)
    NOTE: Do not attempt to straighten any kinked nylon fuel lines. Replace any kinked nylon fuel feed or return pipes in order to prevent damage to the vehicle.
    NOTE: Replace the EVAP pipes and hoses with the original equipment or parts that meet the GM specifications for those parts. The replacement EVAP pipe must have the same type of fittings as the original pipe in order to ensure the integrity of the connection. When replacing EVAP hoses, use only reinforced fuel-resistant hose identified with the word Fluoroelastomer or GM 6163-M on the hose. The inside hose diameter must match the outside pipe diameter. Do not use rubber hose within 100 mm (4 in) of any part of the exhaust system or within 254 mm (10 in) of the catalytic converter.
    NOTE: Refer to Cover and Plug Openings Notice in Cautions and Notices.
    IMPORTANT: Always maintain cleanliness when servicing fuel system components.
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure .
  2. Clean all engine fuel pipe connections.
  3. Clean areas surrounding the engine fuel pipe connections.
    4. Fig 1: View Of Fuel Feed And Evaporative Emission (EVAP) Pipes
    GM1404630Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the fuel feed and evaporative emission (EVAP) pipes from the engine. Refer to Quick Connect Fitting(s) Service (Plastic Collar) and Quick Connect Fitting(s) Service (Metal Collar) .
  5. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
    6. Fig 2: View Of Fuel Evaporative Emission (EVAP) Pipes
    GM1404183Courtesy of GENERAL MOTORS CORP.
  6. Disconnect the fuel feed and EVAP pipes from the fuel tank. Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
  7. Cap the fuel pipes in order to stop any fuel leakage.
    8. Fig 3: Identifying Fuel Pipe Retainers With The Fuel Pipes
    GM670063Courtesy of GENERAL MOTORS CORP.
  8. Remove the fuel pipe retainers with the fuel pipes.
  9. Note the position of the fuel and EVAP pipes and the fuel and EVAP pipe attaching hardware for installation.
  10. Inspect the pipes for bends, kinks, and cracks.
  11. Replace the pipe or pipes as required.
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