GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2000 🢒 GL7 (Export) 🢒 Engine 🢒 Engine Controls - 3.0L (LW9) 🢒 Fuel Hose/Pipes Replacement - Chassis

Removal Procedure
  1. Relieve the fuel system fuel pressure. Refer to Fuel Pressure Relief .
  2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in Cautions and Notices.

    3. Object Number: 49750 Size: SH
  3. Disconnect the fuel feed and return pipe quick-connect fittings at the front frame rail. Refer to Plastic Collar Quick Connect Fitting Service .

    4. Object Number: 49906 Size: SH
  4. Disconnect the fuel feed and return pipe quick-connect fittings at the out let side of the fuel filter. Refer to Plastic Collar Quick Connect Fitting Service .
  5. Cap the in-pipe fuel filter pipes, and the engine fuel feed pipe, and engine fuel return pipe as needed to stop any fuel leakage.
  6. Remove the fuel feed and return pipes.
  7. Note the position of the fuel pipes for installation.

Installation Procedure
  1. Install the fuel feed and return pipes as noted on removal.
  2. Remove the caps from the in-pipe fuel filter pipes, the engine fuel feed pipe, and the engine fuel return pipe.
  3. Install new plastic connector retainers on the in-pipe fuel filter, the fuel feed pipe, and the return pipe.

    4. Object Number: 49906 Size: SH
  4. Connect the fuel feed and return pipe quick-connect fittings at the outlet side of the fuel filter. Refer to Plastic Collar Quick Connect Fitting Service .

    5. Object Number: 49750 Size: SH
  5. Connect the fuel feed and return pipe quick-connect fittings at the front frame rail. Refer to Plastic Collar Quick Connect Fitting Service
  6. Lower the vehicle.
  7. Tighten the fuel fill cap.
  8. Inspect for fuel leaks.
    9. 8.1. Turn the ignition switch ON for 2 seconds.
    8.2. Turn the ignition switch OFF for 10 seconds.
    8.3. Turn the ignition switch ON.
    8.4. Check for fuel leaks.