On your dispenser, there should be a hose with a circular piece of plastic on the end. Step Six: Attach Your Dispenser to the Fill Port Once you’ve found it, screw off the plastic cap on the valve. It is the only valve on the low-pressure line. If you have correctly identified the low-pressure line, the fill port will be easy to find. Step Five: Locate and Open the Low-Pressure Line Fill Port The thicker of them is the low-pressure air conditioner line. Once you’ve found the AC compressor, look for the two tubes coming out of it. The AC compressor will be the only item with a belt and pulley system that is not moving. If you are having difficulty telling which piece is the AC compressor, turn your air conditioner off for a minute. The AC compressor will be a cylindrical piece of metal with a belt and pulley system. You can find the air conditioner compressor near the engine. To find the low-pressure air conditioner line, you first have to identify the air conditioner compressor. Step Four: Find the Low-Pressure Air Conditioner Line Step Three: Turn On Your Car’s Air Conditionerįor this step, you just need to start your car and turn on the air conditioner to its maximum setting. You should now open the bottle of freon and screw the dispenser onto the top of it. Step Two: Attach the Freon to the Dispenser If you do not already have goggles and gloves, you should purchase some before recharging your AC. It’s also a good idea to use gloves so that you do not irritate or burn your skin. You will also need to get a refrigerant dispenser with a pressure gauge and a trigger.Īdditionally, I highly recommend that you use goggles when using freon.įreon and its fumes can cause eye irritation and even burns if it makes direct contact with your eyes. Thus, you will have a harder time finding this kind of freon.įor most cars, you will need between 28 oz (0.83 L) and 32 oz (0.95 L) of freon.Īnd since these cans typically come in 12 oz (0.35 L) bottles, you’ll need about two or three of them. If your vehicle is from before 1994, it probably takes r-12 freon, which is now illegal to manufacture in the United States. You can find r-134a freon at just about any auto parts store. Step One: Buy Freon and a Refrigerant DispenserĪs long as your car is from after the year 1993, you need to buy r-134a refrigerant. In the following sections, I will detail the correct way to add freon to a car so that you get the best results. One reason you’ll want to keep your car running when using freon is that it will help you determine whether you added the freon correctly.īecause if you don’t add the freon the right way, your AC will not get colder.Īnd, of course, you won’t know if the air conditioner is getting colder if the car is off.Īlso, if you don’t have your car on when adding freon, it will not circulate throughout the vehicle.įurthermore, not running the air conditioner when you use freon could cause damage to the electronics in your AC system, especially if you have a newer car. Yes, you should leave your car and air conditioner running when you add freon to your vehicle. Should I Leave My Car Running When Adding Freon? I will also detail the process of adding freon to your car and whether doing so is dangerous. In this article, I will discuss whether your car needs to be running when you add freon. You should leave your car running when adding freon. You should also turn on your air conditioner so that you can monitor whether the freon is taking effect. Additionally, keeping your car on when adding freon allows it to circulate faster. Thus, one of the most asked questions in the automotive world is, do I need to leave my vehicle running when recharging my AC? It’s easy to get confused when trying to add freon to your car for the first time.
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