If you are having to add refrigerant, then this means you have a leak, and you will be adding refrigerant again in a few months. It is illegal to add refrigerant to a system with a leak without first repairing the leak. So, my advice is to take it to a professional and have the leak repaired and refrigerant added with the proper equipment, which you do not have.
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There is no Freon in a 1997 Honda Accord. It contains R134a refrigerant. If it is low of refrigerant you have a leak. It is illegal to add refrigerant to any system with a leak without first repairing the leak. The professional who repairs the leak will recharge the system and check to make sure there is sufficient oil in the system. Not a repair for a novice.
By taking it to a professional who has the skill, knowledge, and proper tools to perform this service. Also if it is low of refrigrant, then it has a leak. Adding refrigerant to a system with a leak without repairing the leak is illegal.
First off if it is low of refrigerant then it has a leak. It is illegal to add refrigerant to a A/C system without first repairing the leak. You have neither the tools nor the skill to repair the leak, and to add the correct amount of refrigerant. Take it to a professional shop with the proper equipment and knowledge to repair the system correctly.
It contains no Freon and instead contains R134a refrigerant. It is illegal to add refrigerant to any system with a leak until that leak is repaired. Take your car to a professional and have the leak repaired and the system charged.
There's a leak in the system somewhere.
You don't. The 2000 Saturn refrigerant is not Freon R12 it contains R134a. Add it at the Low pressure port. You have a leak or it would not be necessary to add refrigerant. It is illegal to add refrigerant to a system with a leak without first repairing the leak. Take it to a professional and have the leak fixed.
I have the same problem. Refrigerant is low due to a small leak in the system. They came out and added refrigerant to my system and it worked fine. Now after a long power outage (hurricane IKE) I am having the same problem. It appears I have a small leak in my system and need more refrigerant installed!
One way for refrigerant to escape the system is through a leak. This will be identifiable by an oily residue at the source of the leak commonly around joints and bends in the lines.
about 10% to 15% of system charge
The 1999 Oldsmobile Alero does not have Freon in the A/C system. It contains R134 and not Freon which is R12. As I am sure you do not have the proper equipment to recharge the system plus the fact it is illegal to add refrigerant to a system with a leak, until the leak is repaired, take it to a professional and have the leak repaired. You have a leak or you would not need to add refrigerant.