GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Caution : To reduce the risk of fire and personal injury that may result from a fuel leak, always replace O-ring seals exposed during component services.

  1. Disconnect the negative battery cable(s). Refer to

    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.

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  2. Loosen the filler cap(s) in order to relieve the tank pressure.

  3. Object Number: 228421  Size: SH
  4. Disconnect the electrical connector.
  5. Clean both of the fuel pipe connections and the surrounding areas at the fuel pump before disconnecting in order to avoid possible contamination of the fuel system.
  6. Remove both of the fuel pipes from the fuel pump.
  7. Slide the fuel lift pump out of the bracket.

Installation Procedure

  1. Install the new fuel pipe O-rings.

  2. Object Number: 228421  Size: SH
  3. Position the new pump in the pump bracket.
  4. Install the fuel feed pipe and the suction pipe to the fuel pump.
  5. Tighten
    Use the backup wrench in order to prevent the pump from turning. Tighten fittings to 30 N·m (22 lb ft).

    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.

  6. Connect the harness connector.
  7. Connect the negative battery cables.
  8. Tighten the filler cap(s).
  9. Bleed the air from the system. Refer to Fuel Feed and Fuel Return Pipe Purge Procedure .
  10. Start the engine.
  11. Check for any leaks.