EXHAUST BOOM/FLOOR PAN VIBRATION- EXHAUST HANGER

Some 1984 2000 Sunbird vehicles may exhibit an 1800 RPM exhaust boom/floorpan vibration. To repair this condition, the center exhaust hanger assembly (P/N 25513349), should be replaced with a new hanger (P/N 25521684). The existing bolts should be replaced with two new bolts (P/N 25509534) and two washers (P/N 11500323).

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.