it is added to the suction side. Identified by compairing the lines of the A/C system the LOW side is always bigger then the HIGH side line. NEVER add freon to the HIGH side... Late models do not have a sight glass telling you when it is full, now days you HAVE to weigh the freon before you add it, thusfor the system must be drained and vaccumed down to 30 in for at least 30 min. Yea you can get a can and a hose and just add but this is DANGEROUS! Rick ASE L-1 Master TransMichigan.com
In the low side ac service port.
The 1999 Olds Intrigue does have a dipstick. Use a funnel to add fluid as needed into the dipstick tube.
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.
How do you add freon to a 1999 Honda Passport
Yes...water works really well
You don't add Freon as it has R134a not Freon. You add it to the low pressure side which is the larger hose.
R134a
You can add Freon to your 1999 Chevy cooling system through the low pressure port. Connect your Freon bottle to the low pressure port and release the Freon into the system.
FreonThe connection is on or close to the receiver dryer. If you add too much, the compressor will lock up or it won't cool very good. They don't sell Freon any longer. By the way, your car takes R134A refrigerant. If you add Freon, you ruin it.
Low pressure line Larger line running from compressor
Freon is added into the low side ac port. Using the proper type Freon, and a gauge that works with that type Freon, connect the hose to the port. With the engine running allow the Freon to flow until the gauge reads in the ok range.
you need a funnel. stick the funnel into the hole where the trans. dipstick goes in. insert new fluid .