How To Remove Freon From Car Without Recovery Machine (Simple Guide)

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A recovery device is a vacuum pump used to drain the engine of its freon. Its objective is to lower the pressure in your car’s cooling system so that the gas inside can escape quickly into an absorber tank or venturi chamber. There are alternative methods to remove freon from a car though if you don’t have a recovery device.

What Is Freon?

Freon is a kind of refrigerant that supports engine cooling. It moves through the system and scavenges heat from the engine, improving the car’s performance. Making sure your car has enough freon is crucial because low levels can result in the engine overheating.

Freon can be found inside the engine compartment or under the hood, and since its constituent parts are extremely toxic, it should never be exposed to the air for longer than an hour. Take your car to a mechanic right away if you suspect that it might be low on freon.

How Does Freon Function?

Freon is used in car air conditioners to cool the air. We already know that Freon is a hydrochlorofluorocarbon (HCFC) gas.

The Freon is compressed by the compressor, which turns it into a liquid. Your car may shake and tremble if there are issues with the AC compressor.

The pressure difference created by the air conditioning system of the car produces cool air.

Due to the inability of air conditioners without Freon to effectively dissipate heat, when the air conditioner is turned on, the interior temperature of the car may significantly increase.

Why Should Refrigerant Be Removed From A Vehicle?

Why you would need to remove freon from your car may be a mystery to you. Many people will inquire about this. One might take the freon out of a car for a variety of reasons.

When performing this procedure, it’s critical that you think about your safety. It will be harmful to use refrigerant or freon. Breathing difficulties could result if you are consuming this through the air. It will hurt terribly if the freon comes into contact with any area of your skin. So make sure to always dress appropriately and use gloves and safety glasses.

Even having goggles on hand in this situation might be a good idea. To ensure your safety before beginning the process, please be ready. If you’ve never worked with freon or other refrigerants before, we always advise hiring a pro to handle it for you.

How To Remove Freon From A Car Without A Recovery Machine

Use a bicycle pump

Here’s how to remove gas from your engine compartment if you don’t have access to a recovery device: Find a space where the engine and firewall can be separated by a small amount by opening the hood. The place where you need to attach your pump is to a metal line that runs along the side of the engine.

Once the pump is connected, start pumping air into it and wait until the car hisses before continuing. This indicates that the engine’s freon is evaporating.

Use a spark plug hole

If you don’t want to use one of these techniques but still want to get rid of freon without a recovery device or an electric pump, follow these instructions:

Locate the spark plug hole on top of your engine to start. Wrap a piece of wire around the tip of one end, then insert it into the hole until it reaches the bottom. This will generate suction, sucking out all of the freon in your system (not the best method).

Use a vacuum pump with rubber hose attachments

You can also try using a vacuum pump with rubber hose attachments if a recovery machine is not available to you or using one is not feasible. Even though there is a lower chance that the engine will overheat using this method, it is still not advised if a recovery vehicle is available.

The freon line that runs along the side of the engine of your car must be located in order to attach the vacuum pump to it. Once it’s connected, start pumping the handle and wait until you hear the car hissing before continuing. The freon is evaporating from the engine, so this indicates that.

You must wait at least an hour for your car to cool down after removing all of the gas from the system before attempting to recharge the freon. All of the gas inside your engine compartment will be able to evaporate as a result.

Can I Remove Refrigerant From My Car’s Air Conditioning?

Correct procedures should be followed when recharging or removing refrigerants. Even a tiny amount of refrigerant left in the air conditioner can cause issues. These issues could involve shaking in the vehicle, among other things. Therefore, it is recommended to always exercise extreme caution when working on the AC system.

This has been discussed and answered by a number of automotive experts. We will explain this to you from experience.

In the event that this is your first time, you ought to consult a professional who has removed freon several times. Removal of refrigerant is strictly prohibited due to the potential environmental risk it poses. You could try it at home once you’ve done it with a pro and are certain it’s secure.

Remove Freon From Car Without Recovery Machine

How To Remove Refrigerant From Your Car’s Air Conditioning

Make sure you are aware of one thing before you decide to do this. You must be aware of whether the refrigerant in your car is pure or not. This will need to be done to determine whether it can be reused or whether you will need to dispose of it.

To find out how pure the refrigerant is, you can buy a purity detector. A container into which the refrigerant can be injected is something you must have. You should be aware that releasing freon into the air is prohibited in every state. A law has been passed at the federal level.

Step One

It is important to check that the thermostat in the car is set to “off.” Make sure the heat and air conditioning are both turned off. Before you start step two, you should turn off the entire heating and cooling system.

Prior to moving one, this is imperative that you complete it. If you don’t do this, the process might become more dangerous and difficult.

Step Two

Next, you’ll want to locate the suction side of the air conditioning compressor. Additionally, you’ll need to locate the freon’s lower pressure side. It’s important to remember that the suction side is located on the actual unit. The condensing unit is usually where you’ll find it.

Connect the suction to the low-pressure once you’ve located each side. You must make sure that these are connected.

Step Three

To close the valve on the low-pressure end of the device, you must locate that wrench. You can use the hex key that we suggested you might need if you discover that it is too difficult to move with a wrench.

Now you must make sure that the high-pressure end’s service valve is also slightly closed. Check to make sure it is not completely closed. It should be somewhat open.

Step Four

Now that you’re ready, head over to your compressor. A lower voltage jumper is now available. It should be involved in the process. After that, you’ll see that the low-pressure area will disappear. This valve should gradually empty. Close this valve completely once it has been emptied using your wrench or hex key.

How Dangerous Is Freon Or Refrigerant?

Injuries occur when people attempt this task without the necessary safety gear. Given how hazardous freon is, this job should be taken seriously.

It is possible for breathing problems and even an elevated pulse to result from significant levels of this in the air. When you breathe in the product, this occurs. You ought to cover your face as a result.


It’s crucial to take the time to learn how to delicately remove the refrigerant from your car. This will make the procedure easier for you to comprehend and make it safer for you to carry out. When you remove the freon from your car, be sure to wear safety equipment.

We sincerely hope that you found this article to be useful. When you remove refrigerant from your car, we want you to do it safely. It is always preferable to have assistance while working on your car from another person.