TIMING CHAIN DAMPNER PRODUCTION CHANGE

VEHICLES AFFECTED: 1981 VEHICLES EQUIPPED WITH V.I.N. CODE A, 3 OR 4 ENGINE THE STATIONARY TIMING DAMPNER NORMALLY LOCATED TO THE LEFT OF THE TIMING CHAIN ON THE ABOVE ENGINES WAS DISCONTINUED IN PRODUCTION WITH ENGINE BUILD CODE #133. IT IS NOT NECESSARY TO INSTALL ONE ON ENGINES ABOVE THIS CODE NUMBER.

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.