How do you recharge 1996 Grandam air conditioner?

Answer 1

You will need a can or two of A/C refrigerant from a auto store. Some cities prohibit the sale, but most do not since they no longer use R12 refrigerant. The Grand am has a high pressure port and low pressure port. Never ever charge from a high pressure port the can can explode and cause damage. You can tell the difference because they have plastic caps on them. The high pressure side is red, and low pressure side is blue. On the grand Am you may have to lay under the front side of the car.. depends on the engine size and make...on a v6 series II, Look up and you will see the air conditing hose running across with a blue cap on it. you can;t do this with the car running it gets too hot and the fan is right there.. Remove the blue cap..place the hose from the can on to the nipple of the port.. YOu pull back the colllar on the charging hose and snap it onto the port. Open the valve of the can, besure the can is upright. You want to charge with the gas of the refrigerant and not the liquid. start car and turn on the air conditoning to max. The can will start to get cold as the compessor draws the refrigerant from the can. Usually one can will do it ..maybe another half ..if it is very low. Close the valve of the can when done. Turn off the car, and then remove the charging hose from the port and put the blue cap back on. If this doesn't do it..you either have a bad leak or a bad compessor in the system.