GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Notice: Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering the open pipes and passages.

Important: Always maintain cleanliness when servicing fuel system components.

Important: 

   • There is no service interval for fuel filter replacement. Only replace a restricted fuel filter.
   • Inspect the fuel tank internally and clean the fuel tank if you find a restricted fuel filter.


    Object Number: 12603  Size: SH
  1. Relieve the fuel system pressure. Refer to the Fuel Pressure Relief .
  2. Raise the vehicle. Go to Lifting and Jacking the Vehicle in General Information.
  3. 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.
  4. Disconnect the quick-connect fitting at the fuel filter inlet (3). Refer to Plastic Collar Quick Connect Fitting Service .
  5. Disconnect the threaded fitting (1) from the fuel filter outlet.
  6. Slide the fuel filter (2) from the bracket (4).
  7. Inspect the fuel pipe O-ring for cuts, nicks, swelling, or distortion. Replace the O-ring if necessary.

Installation Procedure

Notice: Always re-attach the fuel lines and fuel filter with all original type fasteners and hardware.

Do not repair sections of fuel pipes.

Important: If fuel line bundle attaching hardware is damaged or broken replace it.


    Object Number: 12603  Size: SH
  1. Slide the fuel filter (2) into the bracket (4).
  2. Reconnect the threaded fitting (1) to the fuel filter outlet.
  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.

    Tighten
    Tighten the fuel filter fitting to 30 N·m (22 lb ft).

  4. Reconnect the quick-connect fitting to the fuel filter inlet (3). Refer to Plastic Collar Quick Connect Fitting Service .
  5. Lower the vehicle.
  6. Tighten the fuel filler cap.
  7. Reconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  8. Inspect for leaks.
  9. 7.1. Turn ON the ignition for 2 seconds.
    7.2. Turn OFF the ignition for 10 seconds.
    7.3. Turn ON the ignition .
    7.4. Check for fuel leaks.