How do you fill a 2003 pontiac vibe with refrigerant for air conditioning?
If you have to fill it, you have a leak. First and foremost, fix the leak. Look for oil around fittings and loose connections. Those are signs of the leak. After you’ve got it fixed, you need to pull a vacum on the system for 30 to 45 minutes. After it reaches 28 inches for 30 minutes or so, valve it off and let it set for another 30 minutes. The needle should not have moved. Then you attach the filler hose to the LOW side of the system. The hose can be purchased anywhere they sell refrigerant. The fitting should be close to the reciever/dryer. Crank the car and turn the ac on. Open the valve on the hose and hold the can upright. The ac clutch will start to cycle(turning on then off). Thats normal. After the first can is empty, close the valve and attach another can. Repeat the process. It may take four or five cans to fill it up. When it’s full, the dryer will “sweat” or condensate. It should stop cycleing as well and stay on all the time. That’s pretty much it.
