Impala V6-3.9L (2007)
Intake Manifold: Service and Repair
Lower Intake Manifold Replacement
Lower Intake Manifold Replacement
Removal Procedure
Important: This engine uses a sequential multiport fuel injection system. Injector wiring harness connectors must be connected to their
appropriate fuel injector or exhaust emissions and engine performance may be seriously affected.
1. Disconnect the negative battery cable.
2. Remove the upper intake manifold.
3. Remove the left valve rocker arm cover.
4. Remove the right valve rocker arm cover.
5. Disconnect the fuel feed line from the fuel rail.
6. Disconnect fuel injector inline connector (1).