For 1990-2009 cars

# A/C MUFFLER HOSE REPLACEMENT SERVICE INFORMATION

A NEW HOSE HAS BEEN RELEASED AS A SERVICE REPLACEMENT PART WHENEVER IT IS NECESSARY TO REPLACE THE MUFFLER HOSE. THIS NEW HOSE IS AVAILABLE FOR THE FOLLOWING GAS AND DIESEL ENGINES. ENGINE 5.7 LF9 DIESEL PART NO. 22517934 ENGINE 4.3 LV2 GAS PART NO. 22505485 ENGINE 5.0 LV8 GAS PART NO. 22505485

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.