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Where is the air conditioner receiver drier on a 2002 Chevrolet Malibu?
R134A refrigerant has to be an exact measurement. Unless you have the proper equipment then it is advisable to have a certified repair shop service the unit for you.
DO NOT even go there. The refrigerant has to be exact as required. It has to measured. If you do not know where to install it then I am sure you Do Not have the proper equipment.