GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Important: If the in-line filter is plugged, the fuel tank should be inspected internally and cleaned if necessary. Refer to Fuel System Cleaning .

Caution: Do not drain the fuel into an open container. Never store the fuel in an open container due to the possibility of a fire or an explosion.

    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. Have a dry chemical (Class B) fire extinguisher nearby.


    Object Number: 18443  Size: SH
  4. Turn the filter housing counterclockwise and allow the fuel remaining in the filter housing to drain into an approved container.
  5. Remove the fuel filter housing and gasket from the base.
  6. Remove the fuel filter cartridge.
  7. Inspect the inside of the housing for signs of rust or corrosion. Discard the housing if rust or corrosion is present.

Installation Procedure

  1. Install a new housing gasket.
  2. Apply a few drops of clean engine oil to the gasket.


    Object Number: 18443  Size: SH
  3. Install the new filter cartridge.
  4. 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.

  5. Connect the housing to the base.
  6. Tighten

        • Tighten the filter housing until the gasket seats.
        • Tighten filter housing 3/4 of a turn more.
  7. Connect the negative battery cable.
  8. Inspect for fuel leaks.
  9. 5.1. Turn ON the ignition switch for 2 seconds.
    5.2. Turn OFF the ignition switch for 10 seconds.
    5.3. Again, turn the ignition switch to the ON position.
    5.4. Inspect for fuel leaks.