Intake Manifold: Removal

1. Perform the fuel system pressure release procedure. Refer to FUEL SYSTEM PRESSURE RELEASE .
2. Remove the intake air tube. Refer to TUBE, INTAKE AIR, REMOVAL AND INSTALLATION, 5.7L .
3. Remove the clean air hose. Refer to HOSE, CLEAN AIR, REMOVAL AND INSTALLATION, 5.7L .
4. Remove the engine cover.

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   1 - Safety Lock

   2 - Fuel Supply Line Quick Connect Fitting

5. Remove the safety lock and disconnect the fuel supply line quick connect fitting from the fuel rail.

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   1 - Wire Harness Retainer

   2 - Throttle Body Wire Harness Connector

6. Disconnect the throttle body wire harness connector and detach the wire harness retainer.

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   1 - Right Side Fuel Injectors Wire Harness Connectors

7. Disconnect the right side fuel injectors wire harness connectors.

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   1 - Manifold Air Pressure (MAP) Sensor Wire Harness Connector

8. Disconnect the MAP sensor wire harness connector located at the rear of the intake manifold.

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   1 - Left Side Fuel Injectors Wire Harness Connectors

9. Disconnect the left side fuel injectors wire harness connectors.
10. Remove the purge solenoid. Refer to SOLENOID, EVAPORATIVE EMISSIONS PURGE, REMOVAL AND INSTALLATION .

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    1 - Make Up Air Hose

11. Disconnect the make up air hose.
12. Disengage the wire harness from the rear of the intake manifold.
    Fig 1: Intake Manifold Bolt Tightening Sequence

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    Intake Manifold Bolt Sequence

13. Using the sequence shown in illustration, remove the intake manifold bolts and the intake manifold.

CLEANING: 

• Before installing the intake manifold thoroughly clean the mating surfaces. Use a suitable cleaning solvent, then air dry.