All 1984 and 1985 Cavaliers use "captured"-type O-rings at refrigerant hose and tube connections. All other past model Cavaliers use the "standard type" O-ring configuration. Replacement O-rings are available from GMWDD under the following part numbers:
TUBE O.D. 3/8" 1/2" 3/4" ---- ---- ---- CAPTURED P/N 3053197 3053203 3053204 GR. # 9.242 9.196 9.196
STANDARD P/N 6555088 3140600 6556521 GR. # 9.196 8.955 9.214
When replacing A/C system O -rings, the correct size and type should be carefully determined. Installing O-rings of improper size and/or type may result in a refrigerant leak.
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.