A/C - Refrigerant Loss Due to Loose or Missing Fitting
89cadillac06Bulletin No. T-89-99
File in Group 1
Number 63
Corp. Ref. No. 971202
Date April, 1989
SUBJECT: A/C REFRIGERANT LOSS DUE TO LOOSE OR MISSING ACCESS FITTING
MODELS AFFECTED: 1985-1989 DE VILLES AND FLEETWOODS 1982-1989 RWD DE VILLES AND BROUGHAMS 1986-1989 ELDORADOS AND SEVILLES 1982-1988 CIMARRONS 1987-1989 ALLANTES
FIGURE 1 - A/C REFRIGERANT ACCESS FITTING:
Some vehicles may exhibit a condition of inoperative or poor A/C performance. This condition may be caused by a loose or missing cap and seat assembly, which results in the loss of a significant amount of refrigerant through the valve core located in the access fitting.
Air conditioning High side and Low side access fittings are supplied with a black plastic cap and seal assembly which provides the primary refrigerant seal for the service fittings.
When servicing or leak checking any vehicle's A/C system, make sure all access fining cap seals are in place and tight. Refer to Figure 1. Caps should be threaded on until contact with the O-ring seal is made and then tightened another 1/4 - 1/2 turn to ensure proper sealing.
High Side Low Side
Valve-Cap and Seal (3/8 x 24) Valve-Cap and Seal (5/16 x 20)
P/N 52451233 P/N 6551640
Parts are currently available from GMSPO.