GM Service Manual Online
For 1990-2009 cars only

In-Line Fuel Filter Replacement Pickup

Removal Procedure

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.

Important: Inspect the fuel tank internally and clean the fuel tank if you find a restricted fuel filter.


    Object Number: 304085  Size: SH
  1. Disconnect the negative battery cable.
  2. Relieve the fuel system pressure. Refer to the Fuel Pressure Relief .
  3. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  4. Clean all the fuel filter connections and the surrounding areas before disconnecting the fuel pipes in order to avoid possible contamination of the fuel system.
  5. Disconnect the threaded fittings (2) from the fuel filter.
  6. Cap the fuel pipes in order to prevent possible fuel system contamination.
  7. Slide the fuel filter from the bracket (1).
  8. Inspect the fuel pipe O-rings for cuts, nicks, swelling, or distortion. Replace the O-rings if necessary.

Installation Procedure


    Object Number: 304085  Size: SH
  1. Slide the fuel filter into the bracket (1).
  2. Remove the caps from the fuel pipes.
  3. 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.

  4. Connect the threaded fittings (2) to the fuel filter.
  5. Tighten
    Tighten the fittings to 25 N·m (18 lb ft).

  6. Lower the vehicle.
  7. Tighten the fuel filler cap.
  8. Connect the negative battery cable.
  9. Inspect for leaks.
  10. 7.1. Turn the ignition ON for 2 seconds.
    7.2. Turn the ignition OFF for 10 seconds.
    7.3. Turn the ignition ON.
    7.4. Inspect for fuel leaks.

In-Line Fuel Filter Replacement Utility

Removal Procedure

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.

Important: Inspect the fuel tank internally and clean the fuel tank if you find a restricted fuel filter.


    Object Number: 594341  Size: SH
  1. Disconnect the negative battery cable.
  2. Relieve the fuel system pressure. Refer to the Fuel Pressure Relief .
  3. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  4. Clean all the fuel filter connections and the surrounding areas before disconnecting the fuel pipes in order to avoid possible contamination of the fuel system.
  5. Disconnect the threaded fittings (1),(2) from the fuel filter.
  6. Remove the fuel filter bracket bolt (4).
  7. Cap the fuel pipes in order to prevent possible fuel system contamination.
  8. Slide the fuel filter from the bracket.
  9. Inspect the fuel pipe O-rings for cuts, nicks, swelling, or distortion. Replace the O-rings if necessary.

Installation Procedure


    Object Number: 594341  Size: SH
  1. Slide the fuel filter into the bracket.
  2. Remove the caps from the fuel pipes.
  3. 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.

  4. Connect the threaded fittings (1),(2) to the fuel filter.
  5. Tighten
    Tighten the fittings to 25 N·m (18 lb ft).

  6. Tighten the fuel filter bracket bolt (4), to 12 N·m (9 lb ft).
  7. Lower the vehicle.
  8. Tighten the fuel filler cap.
  9. Connect the negative battery cable.
  10. Inspect for leaks.
  11. 8.1. Turn the ignition ON for 2 seconds.
    8.2. Turn the ignition OFF for 10 seconds.
    8.3. Turn the ignition ON.
    8.4. Inspect for fuel leaks.