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Adding Freon To A/C System

johnam's Avatar

Join Date: Jan 2000
Posts: 1,915

07-24-04, 08:15 PM   #1  
Adding Freon To A/C System

Need instructions for adding Freon (134a) to a 1988 Cadillac, Coupe DeVille. Where is the compressor safety cut-out switch located and what is the procedure for jumping it out and charging the system? Thanks for your help.

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davo's Avatar

Join Date: Apr 2002
Posts: 2,417

07-25-04, 05:58 AM   #2  
Unless you have converted the system I think it takes R-12.The switch is located near the back of the engine compartment on the larger diameter a/c line.You will have to disconnect the battery for at least 30 seconds prior to attempting to charge the system or the compressor will not operate.

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