Special Tools

Warning: Refer to Battery Disconnect Warning in the Preface section.





Caution: 

•	Do not repair the fuel feed or return pipes.

•	Replace the fuel feed and return pipes with original equipment or with parts that meet the GM specifications for those parts. The replacement pipe must have the same type of fittings as the original pipe in order to ensure the integrity of the connection.

1. Disconnect the negative battery cable.
2. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.
3. Relieve the fuel system pressure. Refer to Fuel Pressure Relief.



4. Disconnect the quick-connect fitting at the fuel rail (1). Refer to Metal Collar Quick Connect Fitting Service.
5. Disconnect the quick-connect fitting at the chassis fuel pipe (3). Refer to Metal Collar Quick Connect Fitting Service.
6. Remove the fuel feed hose (2).
7. Cap the chassis fuel pipe and the fuel rail pipe in order to prevent possible fuel system contamination.
8. Inspect the hose for bends, for kinks, for chafing, and for cracks. Replace the hose as required.

1. Remove the caps from the chassis fuel pipe and the fuel rail pipe.
2. Connect the fuel feed hose (2) to the chassis fuel pipe (3). Refer to Metal Collar Quick Connect Fitting Service.
3. Connect the fuel feed hose (2) to the fuel rail (1). Refer to Metal Collar Quick Connect Fitting Service.



4. Tighten the fuel filler cap.
5. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
6. Perform the following procedure in order to inspect for leaks:

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.

7. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.
8. Program the transmitters. Refer to Transmitter Programming.