RE: 1998+ Conti A/C system?
Dont you have to put in the exact amount it needs though?
From what you said.....
1. Buy bottles, r134a, and a tube
2. Pop hood, engine running, MAX AC, max fan
3. Open cap b4 or after start car?
4. Let bottles empty out
As the system fills up, your bottle will slow down in release of the Freon, plus at discount auto parts and auto zone, they sell these Freon tubes with meters included in the package if you insist on using one.
Buy 2-3 large bottles, some of them have a Sealer compound in them, so you might want one of the 2 bottles.
Turn on the car, turn the AC on MAX, Max fan power, and then plug the tube into the cylinder FIRST before you plug it into the bottle, after it’s secure on there, plug it into the bottle and let it release. I suggest you flip the bottle upside down for faster release. You will feel the bottle emptying out quickly, and it will get colder, once it feels light, and not as cold, plug it out, and insert the next bottle and so on. The cover you’re talking about is nothing but a piece of plastic to protect the Freon inlet. If run into any trouble, the guys at AutoZone will help you out.
Sorry I’m in a hurry, if you have more questions, feel free to post, or email me, and I’ll email you my cell number if you should need any help.