CTS V6-3.2L VIN N (2003)
Intake Manifold: Service and Repair
Intake Manifold Replacement
Intake Manifold Replacement
Removal Procedure
1. Remove the intake plenum.
2. Relieve the fuel system pressure.
3. Refer to Quick Connect Fitting(s) Service (Metal Collar) in order to disconnect the following quick connect fittings from the fuel rail:
-
The return hose/pipe (1)
-
The feed hose/pipe (2)
Plug the open outlet ports to prevent fuel loss and contamination.
4. Disconnect the fuel injector electrical harness connector (2) from the engine wiring harness connector (3).
5. Disconnect the fuel pressure regulator vent tube from the fuel pressure regulator.
6. Remove the fuel rail if intake manifold replacement is necessary.