GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 34730-1A Fuel Pressure Gage
    • J 37088-A Tool Set, Fuel Line Quick Connect Separator

Removal Procedure


    Object Number: 1467502  Size: SH
  1. Remove the fuel rail assembly. Refer to Fuel Injection Fuel Rail Assembly Replacement .
  2. Disconnect the electrical connector (5) for the fuel injector (7).
  3. Remove the retaining clip (6) for the fuel injector (7).
  4. Notice: Use care in removing the fuel injectors in order to prevent damage to the fuel injector electrical connector pins or the fuel injector nozzles. Do not immerse the fuel injector in any type of cleaner. The fuel injector is an electrical component and may be damaged by this cleaning method.

  5. Remove the fuel injector (7) from the fuel rail (2).

Installation Procedure

Important: If the fuel injectors are being removed for the replacement of the fuel rail, it is not necessary to replace the O-rings on the fuel injector. Replace the O-rings only if they are damage.


    Object Number: 1467502  Size: SH
  1. Apply a small amount of clean motor oil to the O-rings (8) and  (9), before installing the new fuel injector.
  2. Install the fuel injector (7) in the fuel rail (2).
  3. Install the retaining clips for the fuel injector (6).
  4. Reconnect the electrical connector (5) to the fuel injector (7).
  5. Install the fuel rail assembly (2). Refer to Fuel Injection Fuel Rail Assembly Replacement .
  6. Inspect for leaks:
  7. 6.1. Turn the ignition switch ON for 2 seconds.
    6.2. Turn the ignition switch OFF for 10 seconds.
    6.3. Turn the ignition switch ON.
    6.4. Inspect for fuel leaks.