Tools Required

J 45910 Fuel Injector Sleeve Remover/Installer

Important: Inspect the seating surface on the fuel injector sleeve and the fuel injector sleeve bore in the cylinder head for debris or damage. If the fuel injector sleeve bore is damaged, the cylinder may need to be replaced.

1. Clean the fuel injector sleeve lower sealing area (1) and the sleeve bore with GM P/N 12377981 (Canadian P/N 10953463).



2. Lubricate and install new O-rings (1) on the fuel injector sleeve (2).



3. Install the fuel injector sleeve onto J 45910 .



4. Apply GM P/N 12345493, (Canadian P/N 10953488) or equivalent to the fuel injector sleeve lower sealing area (1).



5. Install the fuel injector sleeve with J 45910 into the cylinder head.



6. Lightly tap on J 45910 with a hammer to install and seat the fuel injector sleeve.
7. Remove J 45910 from the fuel injector sleeve.