Fuel Rail And Injectors Removal

Special Tools 

EN-49248  Fuel Rail Assembly Remover

For equivalent regional tools, refer to Special Tools 

Fig 1: Fuel Injection Fuel Rail Noise Shield
Courtesy of GENERAL MOTORS COMPANY
WARNING:

The noise cancelling foam component MUST be replaced if it has been exposed to engine fluids. Failure to replace the noise cancelling foam component that has been exposed to engine fluids may result in an engine fire resulting in catastrophic engine damage, and possible injury or death.

1. Remove the fuel injection fuel rail noise shield (1).
Fig 2: Identifying Fuel Rail Assembly Remover Studs
Courtesy of GENERAL MOTORS COMPANY
2. Disconnect the electrical harness from the fuel rail harness connection.
NOTE:
Fuel rail bolts are captured in the fuel rail assembly
• Ensure the bolt is completely loosened, and the threads are no longer engaged.
• Use a suitable tool to apply enough force to pull the bolt straight out of the fuel rail.
3. Remove the fuel rail assembly retaining bolts.
NOTE:

Use care to avoid contact with the fuel rail harness during special tool installation and fuel rail removal.

4. Install EN-49248  studs (1) into the 2 outermost fuel rail assembly retaining bolt locations. tighten the studs to 22 N.m (16 lb ft).
5. Install EN-49248  remover (2) onto each stud, and engage the hooks to the fuel rail. Install the nuts (3) retaining the remover onto the studs and tighten until snug.
Fig 3: Fuel Rail Assembly Remover
Courtesy of GENERAL MOTORS COMPANY
CAUTION:
• Remove the fuel rail assembly carefully in order to prevent damage to the injector electrical connector terminals and the injector spray tips. Support the fuel rail after the fuel rail is removed in order to avoid damaging the fuel rail components.
• Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering open pipes and passages.
NOTE:
EN-49248 will assist in the proper removal of the fuel rail assembly. Ensure that the following conditions are met:
• Turn the handles simultaneously in order to pull the fuel rail straight out along the fuel injector axis.
• DO NOT twist when pulling out on the fuel rail and injector assembly.
6. Using EN-49248  remover, remove the fuel rail assembly.