GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

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.

Important: The engine oil may be contaminated with fuel if the fuel injectors are leaking.


    Object Number: 217114  Size: SH
  1. Remove the fuel rail assembly. Refer to Fuel Injection Fuel Rail Assembly Replacement .
  2. Spread the injector retainer clip to release the injector from the fuel rail.
  3. Remove the fuel injector.
  4. Discard the injector retainer clip.
  5. Remove the injector O-ring seals from both ends of the injector. Discard the O-ring seals.

Installation Procedure


Object Number: 69058  Size: SH

Important: When ordering new fuel injectors, be certain to order the correct injector for the application being serviced.

The fuel injector assembly is stamped with a part number identification (2), a manufacturing date (3), a week code (1), and a production plant number (4).


    Object Number: 217114  Size: SH
  1. Lubricate the new injector O-ring seals with clean engine oil.
  2. Install the new injector O-ring seals on the injector.
  3. Install a new retainer clip on the injector.
  4. Push the fuel injector into the fuel rail injector socket with the electrical connector facing outward. The retainer clip locks on to a flange on the fuel rail injector socket.
  5. Install the fuel rail assembly. Refer to Fuel Injection Fuel Rail Assembly Replacement .