GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 43178 Fuel Line Disconnect Tool

Removal Procedure


    Object Number: 828878  Size: SH
  1. Remove the four fasteners from the engine cover (1).
  2. Remove the engine cover (1) from the engine.

  3. Object Number: 236747  Size: SH
  4. Relieve the fuel pressure. Refer to Fuel Pressure Relief .
  5. Remove the quick connect coupling cover.
  6. Disconnect the coupling for the fuel feed hose from the fuel feed pipe of the fuel rail using the J 43178 . Use a shop towel in order to catch any remaining fuel that may leak. Refer to Metal Collar Quick Connect Fitting Service .

  7. Object Number: 850214  Size: SH
  8. Disconnect the PCV hose (1) from the PCV valve.
  9. Disconnect the PCV breather hose (2).
  10. Disconnect the EVAP hose (3).
  11. Swing the two PCV hoses and the EVAP hose away from the cylinder head
  12. Remove the bolt to the ignition coil wire harness bracket.
  13. Disconnect the electrical connectors to the four fuel injectors.

  14. Object Number: 828881  Size: SH
  15. Remove the fastener (1) from the fuel supply pipe bracket.
  16. Remove the two fasteners (4) from the fuel rail (3).
  17. Remove the fuel rail (3) and the spacers (2) from the engine.
  18. Remove the fuel injector with the O-rings and with the grommets from the fuel rail.

Installation Procedures


    Object Number: 828884  Size: SH
  1. Install new O-rings (3) and new grommets (2) on the fuel injectors (1).
  2. Apply clean engine oil to the O-rings (3) and to the grommets (2).
  3. Install the fuel injectors (1) into the fuel rail.

  4. Object Number: 828881  Size: SH
  5. Install the fuel rail (3) and the spacers (2) onto the engine.
  6. 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.

  7. Secure the fuel rail to the engine with the 2 fasteners (4).
  8. Tighten
    Tighten the fasteners to 29 N·m (21 lb ft).

  9. Install the fastener (1) to the fuel supply pipe bracket.
  10. Tighten
    Tighten the fastener to 9 N·m (80 lb in).

  11. Connect the electrical connectors to the four fuel injectors.
  12. Install the bolt to the ignition coil wire harness bracket.
  13. Tighten
    Tighten the fastener to 10 N·m (89 lb in).


    Object Number: 850214  Size: SH
  14. Connect the EVAP hose (3).
  15. Connect the PCV breather hose (2).
  16. Connect the PCV hose (1) to the PCV valve.

  17. Object Number: 624247  Size: SH
  18. Connect the quick-connect fitting (1) for the fuel feed hose to the fuel feed pipe (2) of the fuel rail. Refer to Metal Collar Quick Connect Fitting Service .
  19. Install the quick connect coupling cover.
  20. Connect the negative battery cable.
  21. Tighten
    Tighten the retainer for the negative battery cable terminal to 15 N·m (11 lb ft).

  22. Turn ON the ignition in order to pressurize the fuel system.
  23. Turn OFF the ignition.
  24. Inspect for fuel leaks.
  25. Repair any fuel leaks as necessary.

  26. Object Number: 828878  Size: SH
  27. Install the engine cover (1) to the engine.
  28. Secure the engine cover (1) with the four fasteners.
  29. Tighten
    Tighten the fasteners to 7 N·m (62 lb in).