GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2001 🢒 Catera 🢒 Engine 🢒 Engine Controls - 3.0L (L81) 🢒 Fuel Hose/Pipes Replacement - Chassis

Removal Procedure

    Caution: Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.

  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .

    2. Object Number: 721468 Size: SH
  2. Remove the muffler and heat shield. Refer to Exhaust Muffler Heat Shield Replacement in Engine Exhaust.
  3. Remove the plastic shield over the fuel lines in the underbody center section.
  4. Remove the attaching hardware that retains the fuel feed and return lines.

    5. Object Number: 721479 Size: SH
  5. Disconnect the quick connect fittings to the center section lines, on the right side almost in line with the catalytic converter. Refer to Servicing Quick Connect Fittings .

    6. Object Number: 721457 Size: SH
  6. Disconnect the fuel feed line from the quick connect fitting at the fuel filter (1). Refer to Servicing Quick Connect Fittings .
  7. Disconnect the fuel return line from the quick connect fitting above the fuel filter (1). Refer to Servicing Quick Connect Fittings .
  8. Remove the fuel feed and return lines.

Installation Procedure

    Caution: In order to reduce the risk of fire and personal injury observe the following items:

       • Replace all nylon fuel pipes that are nicked, scratched or damaged during installation, do not attempt to repair the sections of the nylon fuel pipes
       • Do not hammer directly on the fuel harness body clips when installing new fuel pipes. Damage to the nylon pipes may result in a 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.
       • Apply a few drops of clean engine oil to the male pipe ends before connecting fuel pipe fittings. 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.)

  1. Clean any of the contamination from the male line ends and apply a few drops of clean engine oil.
  2. Install the fuel feed and return lines.

    3. Object Number: 721457 Size: SH
  3. Connect the fuel feed line at the quick connect fitting at the fuel filter (1). Refer to Servicing Quick Connect Fittings .
  4. Connect the fuel return line at the quick connect fitting above the fuel filter. Refer to Servicing Quick Connect Fittings .

    5. Object Number: 721479 Size: SH
  5. Connect the quick connect fittings to the center section lines, on the right side almost in line with the catalytic converter. Refer to Servicing Quick Connect Fittings .
  6. Install attaching hardware on the fuel feed and return lines.

    7. Object Number: 721468 Size: SH
  7. Install the muffler and heat shield. Refer to Exhaust Muffler Heat Shield Replacement in Engine Exhaust.
  8. Tighten the fuel filler cap.
  9. Connect the negative battery cable.
  10. Crank the engine for a few seconds. Turn OFF the engine if the engine starts.
  11. Check for any fuel leaks.
  12. Install the underbody plastic shield over the fuel lines if no leaks are present.