C 3500 Truck 2WD V8-6.0L VIN U (2001)
15. If necessary, remove the heat shield bolts (3), and shield (2) from the exhaust manifold (1).
Installation Procedure
Notice: Refer to Fastener Notice in Service Precautions.
1. If necessary, install the heat shield (2), and bolts (3) to the exhaust manifold (1).
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Tighten the exhaust manifold heat shield bolts to 9 Nm (80 inch lbs.).
Important:
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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) 11 system performance.
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The cylinder head exhaust manifold bolt hole threads must be clean and free of debris or threadlocking material.
Important: Do not apply sealant to the first three threads of the bolt.
2. Apply a 5 mm (0.2 inch) wide band of threadlock GM P/N 12345493 or equivalent to the threads of the exhaust manifold bolts.
3. Install the exhaust manifold, NEW gasket and bolts.
