G6 V6-3.5L (2009)
Intake Manifold: Service and Repair
Upper Intake Manifold Replacement
Upper Intake Manifold Replacement
Removal Procedure
1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (See: Starting and
Charging/Battery/Battery Cable/Service and Repair).
2. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement (See: ).
3. Remove the vacuum hoses from the following:
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Evaporative emissions (EVAP) canister purge valve
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Manifold vacuum source
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Brake booster
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Heater and air conditioning (A/C) source
4. Disconnect the electrical connectors from the following:
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Exhaust gas recirculation (EGR) valve
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Mass air flow (MAF) sensor
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Intake air temperature (IAT) sensor
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Electronic throttle control
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EVAP canister purge valve
5. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement (See: Tune-up and Engine Performance Checks/Air Cleaner
Housing/Air Cleaner Fresh Air Duct/Hose/Service and Repair/Air Cleaner Outlet Duct Replacement).
6. Drain the cooling system. Refer to Cooling System Draining and Filling (LY7, LZE, LZ4, LZ9) (See: Cooling System/Service and Repair
)Cooling System Draining and Filling (GE 47716 Fill) (See: Cooling System/Service and Repair)Cooling System Draining and Filling (LE5
Static Fill) (See: Cooling System/Service and Repair).
7. Remove the left side spark plug wires from the spark plugs. Refer to Spark Plug Wire Replacement (See: Tune-up and Engine Performance
Checks/Ignition Cable/Service and Repair).
8. Remove the following wiring harnesses from the retainers:
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Camshaft position (CMP) sensor wiring harness
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Left side spark plug wire harness
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Engine wiring harness
