Malibu V6-3.5L VIN 8 (2004)
Intake Manifold: Service and Repair
Intake Manifold Replacement - Lower
Intake Manifold Replacement - Lower
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 battery ground negative 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 engine coolant temperature (ECT) wiring harness.
6. Disconnect and remove the fuel injector and manifold air pressure (MAP) wiring harness.
7. Remove the fuel injector rail.
8. Disconnect the heater inlet pipe with heater hose from the lower intake manifold and reposition.
9. Disconnect the radiator inlet hose from the engine.
10. Disconnect the thermostat bypass hose from the thermostat bypass pipe and lower intake manifold pipe.
