GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


Object Number: 288310  Size: SH

The fuel filter (2) is located under the rear of the car, behind the fuel tank. There is no service interval for fuel filter replacement. Replacement is required only if the fuel filter becomes restricted.

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
  3. Caution: Provide additional support when a vehicle is on a hoist in the following ways:

       • Before removing parts, support the opposite end. This helps prevent the vehicle from slipping off.
       • Before removing major components, chain the vehicle frame to the hoist pads at the same end as the removal. This helps avoid a tip-off.
    Failure to follow these precautions could cause vehicle damage, serious personal injury, or death.

  4. Raise the vehicle and suitably support.
  5. 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.)


    Object Number: 408592  Size: SH
  6. Using back-up wrench, remove the fuel filter fitting.

  7. Object Number: 54522  Size: SH
  8. Grasp the fuel filter and the fuel pipe quick-connect fitting. Twist the quick-connect fitting 1/4 turn in each direction in order to loosen any dirt within the fitting. Use compressed air in order to blow dirt from the quick-connect fittings at the end of the fuel filter.

  9. Object Number: 54520  Size: SH
  10. Remove the quick connect fitting by pushing inward toward the fuel filter, grasping the plastic tab around the connector, and pulling the fitting apart.
  11. Remove the fuel filter.

Installation Procedure

Caution: Always apply a few drops of clean engine oil to the male pipe ends before connecting the fuel pipe fittings in order to reduce the risk of fire and personal injury. 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.


    Object Number: 288310  Size: SH
  1. Remove the protective caps from the new fuel filter.
  2. Install the fuel filter (2) in same position as the old fuel filter.
  3. Install the fuel filter fitting using a new O-ring.
  4. • Apply a few drops of clean engine oil to the male tube end of the filter and of the fuel sender assembly.
    • Push the quick-connector (1) together in order to cause the retaining tabs to snap into place.
    • Pull on both ends of each connection to ensure the connections are secure.

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

       Important: Use back-up wrench to prevent damage to the fuel filter O-ring or to the fuel pipe.

    • Install the fuel filter fitting (3).

    Tighten
    Tighten the fuel filter fitting to 27 N·m (20 lb ft).

  5. Lower the vehicle.
  6. Reconnect the negative battery cable.
  7. Use the following procedure in order to inspect for fuel leaks:
  8. 6.1. Turn on the ignition for 2 seconds, leaving the engine off .
    6.2. Turn off the ignition for 10 seconds.
    6.3. Turn on the ignition, leaving the engine off.
    6.4. Inspect for fuel leaks.