TSB Document:

• Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from GMC for this TSB. Call your local GMC dealer's service department & ask for a copy of TSB# 09162004.

Affected Component: ENGINE AND ENGINE COOLING

Summary

EXHAUST BUZZ AT APPROXIMATELY 2100 RPM WIRH A POSSIBLE CAUSE OF THE HEAT SHIELD CONTACT WITH EXHAUST MANIFOLD. *EH

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