Yes!
Drain, flush, and refill.
Get the leak repaired.
Only if it has a leak - in which case you have to get the leak repaired first.
It means there's a leak, and filling the system with refrigerant just means it'll leak out again. So, what's supposed to happen is that the leak is located and repaired.
Question is should you be driving a car with an exhaust leak? Get this repaired ASAP. It is very dangerous to drive a vehicle with an exhaust leak. Carbon Monoxide is a odorless, tasteless, killer even in small amounts. It will leak into your car, and put you too sleep. After the leak is repaired the question becomes mute.
Find the leak and have it repaired.
Because you have a coolant leak. More than likely, from your description, it is a leak in the radiator or radiator hose. Do not let your vehicle overheat. Have this repaired ASAP.Because you have a coolant leak. More than likely, from your description, it is a leak in the radiator or radiator hose. Do not let your vehicle overheat. Have this repaired ASAP.
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.
It all depends on the failed part. If the leak can be repaired without a rebuild, then yes.
It means there is a leak that needs repaired.
You can, so long as you monitor your coolant level. You'd be best advised to have the leak repaired ASAP.
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.