TrailBlazer 4WD L6-4.2L (2007)
12. Disconnect the vacuum brake booster hose at the intake manifold.
13. Remove the generator. Refer to Generator Replacement (4.2L Engine) Generator Replacement (5.3L and 6.0L Engines).
Important: The intake manifold bolts are captured within the intake manifold. Do not attempt to remove the bolts from the intake
manifold.
14. Loosen the intake manifold bolts.
15. Remove the intake manifold.
Installation Procedure
1. Install a new intake manifold gasket to the intake manifold.
Notice: Refer to Fastener Notice.
2. Install the intake manifold onto the engine and secure the manifold with the bolts.