For 1990-2009 cars

# MISSING WASHER FOR A/C KITS (BLOCK FITTING SEALING WASHER)

#### Subject: MISSING BLOCK FITTING SEALING WASHERS FROM SERVICE A/C COMPRESSOR KITS

#### Models Affected: 1988-92 6000, FIREBIRD, BONNEVILLE, SUNBIRD, GRAND AM, FIERO, GRAND PRIX AND TRANS SPORT MODELS

Some replacement A/C compressor kits which have been designed for the new sealing washers may not include the service seal washers as indicated in Pontiac Service Bulletin 91-1-1A issued 11/91. This oversight should be corrected within a few months. In the interim, parts departments should be advised to order a stock of the following part numbers to be used along with new service A/C compressors.

The service sealing washer may be ordered through GMSPO separately as follows:

P/N Application --- ----------- 2724575 All pre-1992 compressors except: 1989-91 Grand Prix Models 1990 Sunbird models w/LT2 engine (Mid-Year) 1991 Sunbird Models

2724576 All 1988-91 Grand Prix Models

2724577 All 1992 compressors with 5/8" suction port openings and 1990 Sunbird W/LT2 engine (Mid-Year) 1991 Sunbird Models

2724578 All 1992 compressors with 3/4" suction port opening.

Parts are currently available from GMSPO.

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.