Montana SV6 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. Remove the coolant crossover pipe.
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 engine coolant temperature (ECT) electrical connector.
6. Disconnect the fuel feed line from the fuel rail.
7. Remove the connector position assurance (CPA) retainer (2).
8. Disconnect the engine harness electrical connector (3) from the fuel injector harness electrical connector.