3 Signs That Your Car's Air Conditioner Needs Freon ❄️

If you find your car's air conditioning to be weak or failing altogether, the problem could simply be due to low refrigerant (freon) levels. We show you three tell-tale signs you can identify in minutes!

Reading Time: 6 minutes

3 Signs That Your Car's Air Conditioner Needs Freon ❄️

If you find your car's air conditioning to be weak or failing altogether, the problem could simply be due to low refrigerant (freon) levels.

Reading Time: 6 minutes

How your vehicle's air conditioning works.

We all know how hot the Texan heat can be

The Texan heat is tough on air conditioning systems, and during the summer months, the last thing you want is to head out for a long drive only to realize your vehicle's air conditioning is not working. The chemical (refrigerant) used to provide cool air is called Freon. Without it, there's no way to circulate cold air throughout your vehicle cabin.

Fried Egg Cooked on Texas Car Hood

It's all about the pressure

Air conditioning systems leverage high-and-low pressure. Before the Freon is converted into a liquid in the high side, it starts out as a gas in the low pressure side of the system. The vehicle is kept cool by the constant circulation of refrigerant through the high and low pressure sides of the system.

Vehicle Air Conditioning System

It's all about the pressure

Air conditioning systems leverage high-and-low pressure. Before the Freon is converted into a liquid in the high side, it starts out as a gas in the low pressure side of the system. The vehicle is kept cool by the constant circulation of refrigerant through the high and low pressure sides of the system.

Overtime, these pressurized systems begin to leak!

As with any mechanical system, time is an enemy. As leaks begin to develop in the air conditioning system, the refrigerant (Freon) and/or the pressure levels of the system begins to drop. The performance of your car's air conditioning system will consequently weaken until it fails altogether. Leaks not only affect your vehicle's A/C, but it also would reduce your gas mileage by forcing your air conditioner to work harder!

Vehicle A/C Freon Recharge

3 Signs Your Vehicle’s A/C Needs To Be Recharged

Car Air Conditioning Blowing Warm Air

1. Your A/C is Blowing Warm Air

One of the most obvious symptoms of low Freon levels is if your air conditioner is blowing warm or room temperature air. As we discussed, the air conditioning system in your vehicle operates by circulating this pressurized refrigerant. When the amount drops too low, it eventually affects performance.

2. Listen For The A/C Clutch to Engage

When you turn on your vehicle's air conditioner, if you listen closely, you will hear a 'click' which signifies the clutch engaging. If the Freon levels are too low, the clutch will fail to engage which means there's not enough refrigerant for the compressor to pressurize. In other words, your air conditioning system has nothing to work with!

Clutch Engaging Vehicle Air Conditioning

Listen for the clutch to engage after turning on your A/C

Visible Refrigerant Leaks

3. Visible Refrigerant Leaks

Another more serious symptom of low Freon levels is visible leaking. If you notice a leak, you will know it's Freon if it appears as a 'thin' greasy substance. These leaks often appear under the hood around the compressor, inside the cabin, or leaking under your vehicle. If you notice leaking, you should head over to your local auto repair shop and have an ASE-Certified technician diagnose the issue and take care of your vehicle's A/C issues.

Overtime, these pressurized systems begin to leak!

As with any mechanical system, time is an enemy. As leaks begin to develop in the air conditioning system, the refrigerant (Freon) and/or the pressure levels of the system begins to drop. The performance of your car's air conditioning system will consequently weaken until it fails altogether. Leaks not only affect your vehicle's A/C, but it also would reduce your gas mileage by forcing your air conditioner to work harder!

Vehicle A/C Freon Recharge

3 Signs Your Vehicle’s A/C Needs To Be Recharged

1. Your A/C is Blowing Warm Air

One of the most obvious symptoms of low Freon levels is if your air conditioner is blowing warm or room temperature air. As we discussed, the air conditioning system in your vehicle operates by circulating this pressurized refrigerant. When the amount drops too low, it eventually affects performance.

Car Air Conditioning Blowing Warm Air

2. Listen For The A/C Clutch to Engage

When you turn on your vehicle's air conditioner, if you listen closely, you will hear a 'click' which signifies the clutch engaging. If the Freon levels are too low, the clutch will fail to engage which means there's not enough refrigerant for the compressor to pressurize. In other words, your air conditioning system has nothing to work with!

Listen for the clutch to engage after turning on your A/C

3. Visible Refrigerant Leaks

Another more serious symptom of low Freon levels is visible leaking. If you notice a leak, you will know it's Freon if it appears as a 'thin' greasy substance. These leaks often appear under the hood around the compressor, inside the cabin, or leaking under your vehicle. If you notice leaking, you should head over to your local auto repair shop and have an ASE-Certified technician diagnose the issue and take care of your vehicle's A/C issues.

Visible Refrigerant Leaks

What Happens With A Vehicle A/C Recharge?

An ASE-Certified technician would check the system's pressures with gauges, and then identify any possible leaks. If a leak is found, the technician will repair the leak before refilling it with fresh refrigerant. Furthermore, if your vehicle's A/C components have been taken apart or changed, to ensure the longevity of your air conditioning unit, technicians would ensure the system is void of all atmospheric air and moisture before charging it.

If in doubt at all, head over to your local Integrity 1st Automotive for a complimentary visual inspection of your vehicle's air conditioning system and take an additional $20 OFF if any A/C service is required. All our work is backed by a 2 year/24,000 mile nationwide warranty!