How To Remove Refrigerant From Car AC?

Car AC is one of the best inventions in recent times. How many times have you been able to cool off with just a few minutes of running your car? The only downside that you might experience is if your car’s AC system needs repair and requires refrigerant to be replaced. This article will show you How To Remove Refrigerant From Car AC? So that they can be fixed or replaced.

The AC system in a vehicle ensures that the cabin stays at an enjoyable temperature all day long. It also syncs with your car’s defroster to prevent foggy windows during cold weather.

This can be caused by removing enough refrigerant from Hunt Heating & Air Conditioning’s air conditioning service to remove any unwanted additives like freon gas or ethane; we offer this removal service as well. Find Out How To Remove Freon From The Car Air Conditioner?

Remove Refrigerant From Car AC

Step By Step Guide For How To Remove Refrigerant From Car AC?

There are many benefits to repairing your own car, but before you get started, make sure that only someone who is certified in refrigerant handling can recover a vehicle’s AC system. The Clean Air Act of 1990, section 609 prohibits disposal into the atmosphere and says it must be recycled or safely disposed of instead for safety reasons.

There is a way to recover and recycle Freon from your car at home. Recovery machines can remove the cooling substance, drain it out for recycling in an efficient machine that will recharge when finished with repairs! It makes total sense, right?

Process Of Removing Refrigerant

You need to make sure that you take safety precautions when handling refrigerants. Wear gloves and goggles before following these steps:

Find The Low-Pressure Service Port

Connect the hoses of your recovery machine to any AC system’s service ports. Locate a low-pressure port, which can be found at either side near the firewall and run towards the ground with an accumulator in between them for more efficient operation. Connect the service hoses of your recovery machine to its AC system’s ports.

Locate a low-pressure port on either side, which will be easier if you follow their route and find where they come out near an accumulator-like cylinder placed in front of the firewall assembly connecting the compressor with an outdoor unit or HVAC box (something else).

You will find the low-pressure line on the back of your air conditioner, and it has a port for servicing. The larger one is where you’ll need to connect this with all standard equipment needed during inspection or maintenance procedures such as wrenches, etc.

This smaller ‘high pressure’ service line between the firewall in front & condenser stationed next door alongside the radiator accommodates high-powered tools used by pros who work inside cars.

Run The Recovery Machine

With the machine kicking off, it will be able to remove all of the refrigerant vapor and non-condensable gases from your air conditioning system. As some may already exist as liquid molecules in this newly started upcycle, you’ll need an expert hand at turning them into their more traditional state for efficient removal.

The machine will automatically shut off when the system is vacant. If there are no more vacuums to be pulled, but the pressure in line still stays high enough for five minutes or longer, then it might have been caused by the refrigerant being released from your air conditioner’s cooling coils into an already-empty environment. Which can lead eventually towards complete recovery.

Disconnect From Machine

Finally, detach the machine using one or more quick disconnects. Old models that mainly removed R-12 type of Freon need shut-off valves on hoses when not in use, but newer ones allow for easy detachment with no risk by closing them beforehand so you don’t lose any liquid – they’ll just spill out into an easily-accessible container.

Important Points Throughout The Process Of Removing Refrigerant

  1. Get the car’s engine and AC system cold
  2. Find a safe location to work – away from kids, pets, and other people
  3. Remove the compressor belt so you can get at all of the hoses attached to it
  4. Disconnect any electrical connections on the compressor or condenser unit
  5. Loosen up any clamps holding hoses in place before removing them
  6. Use a vacuum cleaner with an extension tube to remove air from lines as they are removed

Now that the refrigerant is removed, you can begin to recover it. Once your car’s AC system has been completely emptied of R-12 type Freon, you can remove the hoses from each of your vehicle’s low-pressure service ports.

Note: If you’re dealing with an ancient car with the refrigerant of R-12 type, it is recommended to shut off valves on hoses when not in use.


If you have an old car with a faulty AC, don’t worry. These are steps you can take to remove the refrigerant from your vehicle so that it doesn’t leak into the environment or cause harm to someone’s skin. I hope this post on How To Remove Refrigerant From Car AC? Is informational to educate you about the necessary things to do and why they’re necessary.

Frequently Asked Questions

How do I remove refrigerant from the AC compressor?

It’s best to let the system cool naturally before you break the seal. Once it has cooled, use an adjustable wrench or pneumatic wrenches to open both sides of the valve. Unscrew the high-pressure hose connection near the AC compressor, and remove any vacuum line connected midway in length on the boiler side of the AC compressor. At this point, you should be able to unscrew and remove the piston rod screw in order to take out seals in the rod without damage.

Does pulling a vacuum remove refrigerant?

Yes. A vacuum is a rapidly-constricting airflow, and the rapidly-expanding air that exits from the vacuum has been cooled considerably by conduction with the surface on which it expands. In other words, the rapid cooling of the air removes any residual heat energy in it – including whatever heat may have been present within pressurized gas particles in any appliance’s refrigerant system.

How much does it cost to remove refrigerant from car AC?

To find a service provider in your area, visit this page. Pricing varies by region and type of car AC unit. For example, it costs $134 to have a typical AC system charged up in Atlanta, Georgia, but it’s more expensive for newer-model Lexus models at around $200-$300.

Leave a Comment