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# 776001.

Affected Component: ENGINE AND ENGINE COOLING:ENGINE

Summary

KNOCK, RATTLE OR TAP NOISE FROM THE ENGINE BEFORE THE ENGINE HAS REACHED OPERATING TEMPERATURE OR UNDER LIGHT LOAD CONDITIONS AT OPERATING TEMPERATURE KNOCK, RATTLE OR TAP NOISE FROM THE ENGINE BEFORE THE ENGINE HAS REACHED OPERATING TEMPERATURE OR UNDER LIGHT LOAD CONDITIONS AT RATURE (REPLACE PISTON AND/OR ROD ASSEMBLIES). *TW

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