A/C COMPRESSOR MOAN/VIBRATION (INSTALL INERTIA RING)

AIR CONDITIONING COMPRESSOR MOAN/VIBRATION

VEHICLES AFFECTED: 1986-88 B-CARS WITH 5.0L AND 5.7L ENGINES ------------------

Some 1986 through 1988 B-cars with 5.0L (VIN Code H) 5.7L (VIN Code 6) engines and C60 air conditioning may exhibit a moan and/or vibration when the air conditioning is engaged.

This condition may be addressed by the installation of an inertia ring kit on the A/C compressor. The kit part number is 2724034.

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.