CTS V8-5.7L VIN P (2004)
Fuel Injector: Service and Repair
Fuel Injector Replacement
FUEL INJECTOR REPLACEMENT
REMOVAL PROCEDURE
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
1. Disconnect the negative battery cable.
IMPORTANT: Leaking fuel injectors may contaminate the engine oil with fuel.
2. Relieve the fuel system pressure. Refer to the Fuel Pressure Relief Procedure.
3. Remove the fuel rail assembly.
NOTE: 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.
4. Spread the injector retainer clip to release the injector from the fuel rail.
5. Remove the fuel injector.
6. Remove the injector O-ring seals from both ends of the injector.
INSTALLATION PROCEDURE
IMPORTANT: When ordering new fuel injectors, be sure to order the correct injector for the application being serviced.