A/C BUZZ NOISE A/C SYS. ON HI BLOWER SPEED

Models Affected: 1985 Electra and Park Avenue

Notice: This bulletin supersedes 85-1-1 dated August 1984 for correction of labor operation number. Please discard original bulletin and replace it with this one.

We have heard of some cases where a buzzing sound may be experienced out of the two center air conditioning dash outlet areas when system is on high blower speed. This condition can be repaired by carefully prying the two center outlets from the duct and removing the horizontal vane that can be seen from the back side. An outlet can be removed by pushing up the center of the lower edge of the outlet and prying outward until the two locators are freed. The vane can be removed by bending slightly until it detaches from retaining dowel holes at each end. (See Illustration) Reinstall outlets back into dash.

Outlets are marked on top with an "V" or "R" to indicate position in the dash. Care should be taken to reinstall with proper orientation. The horizontal vanes were removed in production 5-24-84.

WARRANTY INFORMATION

Labor Operatim Number: T5072

Failure Code: 92

Labor Hours: 0.2 for both outlets

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.