Silverado Classic 2500 2WD V8-8.1L (2007)
Intake Manifold: Service and Repair
Intake Manifold Replacement
Intake Manifold Replacement
Removal Procedure
Important: The intake manifold, throttle body, fuel rail, and injectors may be removed as an assembly. If not servicing the individual components,
remove the manifold as a complete assembly.
1. Loosen the clamps at the throttle body and air cleaner.
2. Remove the air cleaner outlet duct.
3. Unsnap the intake manifold sight shield from the stud.
4. Remove the sight shield from the bracket.
5. Remove the sight shield bracket nuts (1) and bracket, if necessary.
6. Relieve the fuel system pressure. Refer to Fuel Pressure Relief (With CH 48027) Fuel Pressure Relief (Without CH 48027).
7. Disconnect the fuel feed and return pipes.
8. Disconnect the engine harness clips from the studs on the front of dash.
9. Disconnect the engine harness clip from the wheelhouse splash shield.
10. Disconnect the following electrical connectors:
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Pressure cycling switch (1)
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Surge tank switch (2)
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Mass airflow (MAF) sensor (3)
11. Reposition the engine harness branch to top of engine.
