CUSTOMER COMPLAINTS OF AN EXHAUST LEAK OR EXHAUST NOISE MAY BE DUE TO A CRACKED OR BROKEN AIR TUBE ON THE CATALYTIC CONVERTER. IN THE PAST THIS REPAIR REQUIRED THE REPLACEMENT OF THE CATALYTIC CONVERTER. BY USING THE DEVELOPED SERVICE KIT IT IS NOW POSSIBLE TO REUSE THE ORIGINAL CONVERTER. SERVICE KIT, P/N 25057508, CONTAINS ALL NECESSARY PARTS AND AN INSTRUCTION SHEET, P/N 25057509. LABOR OPERATION: T1133 LABOR TIME: 1.2 HOURS
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.