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General Description

In recent years GM has focused its attention on environmental concerns including the elimination of chlorofluorocarbons (CFC's) that are present in the refrigerant R-12. In order to optimize the ability to detect, isolate, and correct minimal standard refrigerant leaks the Kent-Moore J-39400 Leak Detector has been made essential for all General Motors dealerships. (Revised standards permit leak rates no higher than .4 oz./year.) This tool is also capable of detecting R-134a leaks, the non CFC based refrigerant that will be used in all Cadillac models beginning in 1994.

To assure optimal results are obtained with this tool, the procedures outlined in this bulletin must be strictly adhered to.