GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 2619-01 Slide Hammer
    • J-37281-A Injector Remover

    Object Number: 1769947  Size: SH
  1. Disconnect the electrical harness from the fuel rail harness connection.
  2. Remove the fuel injector noise insulator.

  3. Object Number: 1769948  Size: SH

    Caution: Fuel that flows out at high pressure can cause serious injury to the skin and eyes. ALWAYS depressurize the fuel system before removing components that are under high fuel pressure.

  4. Remove and discard the high pressure fuel line.

  5. Object Number: 1769950  Size: SH
  6. Disconnect all 4 fuel injector electrical connections.
  7. Remove the fuel rail bolts.
  8. Remove the fuel rail and injectors.

  9. Object Number: 1769952  Size: SH
  10. The injectors may stay in the cylinder head. Remove the fuel injector hold-down clamp before removing the injector.
  11. Use J-37281-A and J 2619-01 to remove the injector.

  12. Object Number: 1769960  Size: SH
  13. Remove the high pressure fuel pump bolts.
  14. Remove the high pressure fuel pump.
  15. Remove and discard the high pressure fuel pump gasket.
  16. Remove and discard the high pressure fuel pump O-ring.

  17. Object Number: 1769961  Size: SH
  18. Remove the high pressure fuel pump roller lifter.