GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
  2. Disconnect the engine fuel pipes from the engine fuel flex hoses. Refer to Metal Collar Quick Connect Fitting Service .

  3. Object Number: 870564  Size: SH
  4. Use a back up wrench on the fuel pressure regulator and disconnect the return line.
  5. Disconnect the fuel feed line from the fuel rail.

  6. Object Number: 870566  Size: SH
  7. Remove the engine fuel pipes fasteners (1) located on the engine.
  8. Remove the engine fuel pipes.

Installation Procedure


    Object Number: 870564  Size: SH

    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.

  1. Install the fuel return pipe to the pressure regulator.
  2. Tighten
    Using a backup wrench on the fuel pressure regulator tighten the return pipe to 10 N·m (89 lb in).

  3. Connect the fuel feed pipe to the fuel rail.
  4. Pull back on the fuel feed pipe to ensure that it has connected.

  5. Object Number: 870566  Size: SH
  6. Install the engine fuel pipes fasteners located on the engine.
  7. Tighten
    Tighten the fuel pipes fasteners to 10 N·m (89 lb in).

  8. Connect the engine fuel pipes to the engine fuel flex hoses. Refer to Metal Collar Quick Connect Fitting Service .
  9. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  10. Inspect for leaks using the following procedure:
  11. 7.1. Turn ON the ignition, with the engine OFF for 2 seconds.
    7.2. Inspect for fuel leaks.
    7.3. Turn OFF the ignition for 10 seconds.
    7.4. Turn ON the ignition.