GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Caprice WM 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Fuel Injector Replacement

Removal Procedure
  1. Remove the fuel rail assembly. Refer to Fuel Injection Fuel Rail Assembly Replacement.

    2. Object Number: 1950742 Size: SH
  2. Remove the fuel injector to fuel rail assembly retaining clips (2).

    3. 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.

  3. Remove the fuel injector (4) from the fuel rail (1).
  4. Remove the injector lower O-ring seal (5) from the spray tip end of each injector and discard.

    5. Discard the O-ring seals.

  5. Remove the injector upper O-ring seal (3) from the fuel rail end of each injector and discard.

    6. Discard the O-ring seals.

Installation Procedure

    Object Number: 1950742 Size: SH
  1. Apply a small amount of clean motor oil to the O-rings (3) and (5), before installing the new fuel injector.
  2. Install the NEW injector upper O-ring seals (3) to the injectors.
  3. Install the NEW injector lower O-ring seals (5) to the injectors.
  4. Install the fuel injector (4) in the fuel rail (1).
  5. Install the retaining clips for the fuel injector (3).
  6. Install the fuel rail assembly. Refer to Fuel Injection Fuel Rail Assembly Replacement.
    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.