2005 Chevy Venture - where do i add freon

I'd go with, enough to get the suction line cold, anticipate about 30 oz total from vaccuum point. No more freon, try furane.

Here's a link to your a.c. port,if you need to add some,then you may have a leakk,Midas does this at a good price,they have green dye in their freon,so if it's leaking anywhere,the dye will show up. How to Add Freon in 1997 2005 Buick Park Avenue 1998 Buick Park Avenue 3...

There are no hoses on the ac sys they are metal lines an if you follow the compressor lines back to the evap unit under the dash you will see what I am saying. Once the leak was discovered did the ac still function as it should or did it not get cold.

My lincoln had the same issue, first it was the A/C compressor (original). I replaced it with another one (used) and worked for 1 month. Then back to hot air. "A/C experts" told me the compressor was out again. I took it to a Mexican auto shop, old building where the guy works alone and to my surprise...HE FOUND THE PROBLEM!! There was no freon leaks, the lines were freezing cold inside the motor, checked freon>>full. He then checked the filter. This filter is on the end of the line where it is crimped that allows the freon to flow thru. Im no mechanic so explaining what it is, forgive me. I can only show you...the line is silver ad in front of you by the radiator, and its the same tube that goes to where you plug it to add freon. There is a filter that was clogged up and prevented the freon from flowing. He removed all the freon, vacuumed out the system/line, and replaced the filter for less that $3.00. Added freon and his cost was $80.00. Thank God for honest people who work hard for a living. I buy the parts, he replaces and I continue to give him my business. Other expensive auto shops with fancy buildings/prices My Lincoln Mark LT now blows arctic cold air!!!

Open the hood and look down between the rad and the engine and on the large a/c line is the low side port right close to the exhaust manifold so you can burn your hand easily.DO NOT add Freon to this system.It requires 134a refrigerant only.Be aware of aftermarket "refrigerants" with a EXPLOSIVE sticker or label on them.They are usually a mix of butane and/or propane.You may not want these products in your a/c system because in a collision situation where your vehicle interior a/c components become damaged/ruptured,a vehicle interior fire may not be a good thing for you at that time.

You shouldn't ever have to add freon to an a/c system. It is a closed system - like your refrigerator. When was the last time you added freon to your refrigerator or home a/c when there wasn't a problem?

If you are needing to add freon, then you have a leak somewhere that needs to be repaired. Your local automotive technician can diagnose the problem for you. Freon should only be added by trained professionals. If you don't know what you are doing, you can charge the system incorrectly causing significant damage to the system.

If you still want to do it yourself, reference this article.
You will need a set of A/C Gauges, and freon.
Do NOT put any type of stop leak into the system - this can cause irreversible damage to the compressor.

If the AC is not cold- you don`t add coolant. You must add REFREGERANT (freon gas)
This is added in the A/C lines by a Trained Technician. I would recommend you go to your service repair shop for this service. You may have a slow leak -but either way the shop will further diagnose your car`s A/C system..

There is only one system, so your conclusion doesn't make sense. If the front evaporator is leaking, the whole system will lose charge, and the back will not be cooling. Your problem may actually be the front blend door. Recommend you get a second opinon. Evaporator replacement is much more than $300.

The charging line (low side) is in front of the Radiator fans, Silver(aluminum) tube

passengers side under the hood.....by the firewall.....