TrailBlazer 2WD V8-6.0L (2009)
7. Remove and discard the exhaust manifold gasket.
8. Remove the exhaust manifold heat shield bolts (604) and shield (603), if required.
Installation Procedure
Note:
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Tighten the exhaust manifold bolts as specified in the service procedure. Improperly installed and/or leaking exhaust manifold gaskets may affect
vehicle emissions and/or On-Board Diagnostics (OBD) II system performance.
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The cylinder head exhaust manifold bolt hole threads must be clean and free of debris or threadlocking material.
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Do not apply sealant to the first 3 threads of the bolt.
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
1. Position the exhaust manifold heat shield (603) onto the manifold and install the bolts (604), if required.
