A/C - Freon Leaks, New O Rings
89Chevy21Number: 89-215-1D
Section: 1D
Date: July 1989
Subject: AIR CONDITIONING FREON LEAKS
Model and Year: 1987-89 G1, G2, AND G3 VANS
TO: ALL CHEVROLET DEALERS
Effective with vehicles manufactured after January 30, 1989 (Vehicle Identification Numbers listed below), new air conditioning system O-ring seals which reduce the potential of Freon(R) leakage were released in production. These new, revised O-rings are manufactured from a neoprene material providing increased sealing properties over the former nitrile composition.
When repairing a Freon system leak, or performing a major repair to the air conditioning Freon(R) system, it is recommended the revised O-ring seals be installed.
Below is a list of the new O-ring seal part numbers:
NEW PART NUMBER DESCRIPTION
52450548 O-Ring Seal 1/4" O.D.
3093509 O-Ring Seal 3/8" O.D.
3094214 O-Ring Seal 1/2" O.D.
3094215 O-Ring Seal 5/8" O.D.
3094216 O-Ring Seal 3/4" O.D.
Vehicle Identification Number breakpoints:
Scarborough Lordstown
2GBEG25K2K4143663 1GCEG25K1K7171910
Parts are currently available from GMSPO.
Labor Operation Description Labor Time
D3040 Compressor Manifold .4 Hr
D3041 Condenser .4 Hr
D3043 Expansion Valve .5 Hr
D3044 Evaporator .2 Hr
D3045 Accumulator .3 Hr
D3047 Pressure Switch .2 Hr
D3055 Floor Plate to Rear A/C .4 Hr
Add: Discharge/Charge A/C System .5 Hr