CONDITION: A RATTLE LOCATED IN THE UPPER CENTRE AREA OF THE INSTRUMENT PANEL OF 1980 AND 1981 "X" MODELS EQUIPPED WITH 3-C COMPUTER COMMAND CONTROL SYSTEM. POSSIBLE CAUSE: LOOSE RADIO NOISE SUPPRESSION SHIELD ON THE UNDERSIDE OF THE INSTRUMENT PANEL. CORRECTION: THE SHIELD IS ADHESIVE ATTACHED TO THE UNDERSIDE OF THE INSTRUMENT PANEL. THE RATTLE MAY BE CORRECTED BY LIFTING THE EDGE OF THE LOOSE AREA AND INJECTING A SMALL QUANTITY OF RTV SILICONE SEALER BETWEEN THE LOOSE SHIELD AND THE MATING SURFACE. ACCESS TO THE SHIELD MAY BE GAINED BY REMOVING THE SPEEDO CLUSTER OR THE INSTRUMENT/ TELLTALE CLUSTER.
General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.