Avalanche 2500 4WD V8-8.1L VIN G (2003)
Installation Procedure
1. Install a NEW exhaust manifold gasket.
2. Install the exhaust manifold.
Notice:
Refer to Fastener Notice in Service Precautions.
See: Service Precautions/Vehicle Damage Warnings/Fastener Notice
3. Install the exhaust manifold bolt and nuts.
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Tighten the bolt to 35 Nm (26 ft. lbs.).
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Tighten the nuts to 16 Nm (12 ft. lbs.).
4. Raise the vehicle.
5. Install the exhaust manifold heat shield.
6. Install the exhaust manifold heat shield bolts and nuts.
Tighten the bolts and nuts to 25 Nm (18 ft. lbs.).
7. Lower the vehicle.
