Car A/C Not Blowing Cold Air? How To Fix A/C In Car

Air conditioning is a component in cars that changes the temperature of the cabin to compensate for outside temperatures. A/C units use refrigerants, which can leak and be harmful to your health.

An A/C unit can also break down and you’ll have to repair it. A/C units are expensive, so it’s worth getting an estimate before having one fixed. This blog will tell how much to fix A/C in a car.

How Does An A/C Work?

An A/C unit uses a fan and compressor to draw cold air in through the front of the car, and blow it out the back. The interior of your car is cool because hot air is drawn into the vehicle by the engine.

The AC makes sure that the temperature of the cabin remains in range, even when outside temperatures are extremely high or low.

Auto technician diagnosing car’s A/C compressor.

Tips for a Well-Working A/C in Car

1.     Regular maintenance on the A/C

A car’s A/C needs maintenance. The most important part of the A/C is its compressor. It needs to be cleaned and lubricated regularly to ensure it functions properly. The blower motor on the unit might need cleaning too, or you can replace it if it has problems.

Ensure that you are replacing your part with a genuine OEM unit from a reliable manufacturer such as Mitsubishi, as these parts are designed specifically for these units and will be designed for a better lifespan and performance than generic replacements.

2.     Replace old refrigerants

Refrigerants can leak, causing damage to your car’s A/C unit. It is important to replace a leaking refrigerant tank immediately. The refrigerant in new tanks is often flammable and unsuitable for the environment. Refrigerants are also expensive, so you will want to replace them with a unit that uses an eco-friendly refrigerant.

The compressor is a mechanical component of the AC unit that is designed to move heat from one place to another and compress gasses in between two stages: the evaporation and the condensation level.

3.     Clean the condenser

The condenser is located outside the vehicle, and it looks like a large box that has fins on it. The fan forces cold air past the fins, where it absorbs heat from the outside. The fins are usually made of copper or aluminum.

They can get clogged with dirt or mold, so they need regular cleaning to ensure they continue to work properly. A clogged condenser will result in poor A/C performance.

4.     Replace the compressor

A car’s A/C unit contains a compressor to vaporize refrigerant, increasing its pressure. When the refrigerant leaves the compressor, it’s at very low pressure, usually around 10psi. When it goes into the evaporator of your car, it liberates heat when it changes back into a gas.

The A/C pump then pressurizes this heat-laden gas and sends it to the condenser where it is cooled by outside air and reverts back to gas form. The pressure increases as more refrigerant convert back to its gaseous state in the condenser and then moves into an expansion valve.

5.     Regular A/C service

You can perform all of these tasks on your own, or you can go to a mechanic. If you decide to have a mechanic do the work, ask him how much he will charge and ask to see his license.

You may also want to take your car in for regular A/C service. A licensed auto repair service will perform diagnostics on the AC unit and determine what’s wrong with it. They may even be able to find small issues before they become big problems.

Cost To Fix A Faulty AC

It can cost a lot to repair an A/C unit once the A/C fails, it will not function properly, so you’ll have to replace it entirely. If you decide to check the engine first and fix the problem yourself, then there are simple DIY techniques that you can use to find the source of your air conditioning problems without draining your wallet.

Factors That Determine Cost To Fix A Faulty A/C

Below are the factors that will help determine the cost to fix a faulty car’s A/C.

Young woman suffering from the heat inside a car.

1.     The age of the car’s A/C

The older the car is, the more costly it will be to fix it. If you can live with its performance issues, they can be repaired by a small technician. But if you want your car’s A/C to function at its best and run like new, then it’s important to have an expert attend to your problem.

Inexpensive repairs are good in emergencies, but long-term work includes expensive labor and parts.

2.     The location of the unit

The location of the car’s A/C plays a vital role in determining how much it will cost for repairing. A faulty car’s A/C can be very inconvenient and uncomfortable when you are out on the road.

If you want to get your A/C fixed as soon as possible, you must take it to a repair shop that is not too far from your location. You also have to consider how much time it will take for your car’s A/C to be repaired.

3.     The type of car’s A/C

Having a regular maintenance schedule can help you avoid a lot of problems with your car’s A/C when they’re small and cheap to fix. But if a problem becomes big, it will be more costly.

4.     The extent of the problem

If you want to save money on A/C repair, then you should check your air conditioning system before it completely fails. Small issues increase the cost because they don’t need immediate attention and can go unnoticed until major damage is caused to them.

If the system fails to operate during the summer seasons, it will cause you a lot of trouble and expenses for you too.

5.     The vehicle’s age

Air conditioning systems have to be of good quality if the unit is to continue operating for an extended period of time. If you want to know the cost of repairing your car’s A/C, then you have to consider the vehicle’s make and year because there are a significant number of factors that determine cost when it comes time for a repair.

The amount spent on air conditioning repair will vary depending on many factors such as whether you own a car with air conditioning or not, where the problem occurred, how old your car’s A/C is, and how serious the problem was in the first place. It will also differ depending on the type of repair performed.

6.     The condition of the car’s A/C

How good is your A/C unit? Does it start and run smoothly or does it make noises? Have you checked the pressure and temperature gauges with your air conditioner? The more precise you are in determining the problem, the less time you will have to spend on it.

7.     The type of repair that is needed

Repairing a broken air conditioning system can be a large investment for those who own an older vehicle that has many other parts that need to be replaced. If you want to know about the cost of fixing your car’s A/C, then you have to consider how much money it will take and where the problem occurred.

Can You Fix Air Conditioner In The Car?

Yes, you can do this if you have enough time and effort to spare. One thing that you must always remember is that running the car engine while the air conditioner is in operation is hazardous, not just because it will increase fuel consumption but also because of carbon monoxide poisoning.

There are reasons why you should never run your car engine while the air conditioner is on:

Air Conditioning leaks

The leaks in your air conditioning unit will allow the refrigerant and other gases to escape into the atmosphere. This cannot be good for the environment, nor will it help to cool your vehicle down. This can lead to costly repairs and even replacement of your A/C unit. You should check the air conditioning system regularly to ensure that no leaks are taking place.

Blown Fuse

One of the biggest reasons why your air conditioning might not be working is a blown fuse. A blown fuse will cause the car cigarette lighter to stop working and this means that you will not be able to turn on your car’s A/C. Blown fuses are very common in older cars and they are usually caused by wear and tear over time or by short-circuiting.

Tips To Fix Air Conditioner In The Car

1.     Change the fuse

If you want to fix your faulty A/C, then you have to consider used heavily enough for a regular maintenance schedule, by a certified mechanic.

2.     Check for leaks

The air conditioning leaks in your car can be very dangerous and can lead to carbon monoxide poisoning. If you want to know about the cost of fixing your car’s A/C, then you have to consider how much money it will take and where the problem occurred.

3.     Clean the thermostat or replace it

The thermostat is responsible for regulating the temperature of air circulated by your air conditioning system. If it malfunctions, then your air conditioning might not be able to switch on or off properly.

This will cause a lot of unnecessary work with your car’s A/C repair because the system will continue working after the thermostat has been replaced with another one.

4.     Check the fuse box

If you want to fix an air conditioning unit in your car, then make sure to check the fuse box to see if any fuses have been blown. If that’s the case, then you have to replace them with new ones and get your A/C back on track again.

5.     Check the vacuum hoses

If you want to know about the cost of fixing your car’s A/C, then you have to consider how much money it will take and where the problem occurred. If your car’s AC system is not working the way that it should, then you may have a simple vacuum hose problem.

Vacuum hoses carry gas from one part of your engine to another and if there are any holes in these hoses, then they can be very dangerous for both your vehicle and the passengers in it. If you want to save money on air conditioning repair, then you should check if there are any vacuum leaks in the system before they become a big problem.

What Makes Car’s A/C Stop Working?

In most cases, the air conditioning system in your car will stop working for a number of reasons.

1.     The compressor fails

This is a common problem and usually happens when the compressor in your air conditioning system has been damaged or worn out. This can be caused by taking it to the shop for regular maintenance or by running it too much.

2.     The condenser fails

This is another common problem and once again, it can be caused by something that you did to the air conditioning system in your car.

Either you were not replacing your air conditioning filters regularly or a squirrel was chewing on one of the hoses that connect all of the components together, which would have allowed fluids to leak into these components and eventually cause them to fail. If that is what happened, then you need to get anything inside of these components replaced immediately.

3.     The evaporator core fails

When your air conditioning system’s evaporator core fails, then this can cause a lot of problems with your car’s A/C. If the vapor lines are damaged or there are leaks, then you might find that you have to replace your entire air conditioning system.

If you want to know about the cost of fixing your car’s A/C, then you have to consider how much money it will take and where the problem occurred.

4.     The thermostat fails

Another common failure that happens quite often when you are operating your air conditioning system is the thermostat going out on a regular basis or failing altogether because of a short circuit or being worn out in general.

5.     The condensation pipe leaks

A condensation pipe is another common cause of problems with your air conditioning system and usually happens when someone hits your car. That can knock out some of the components and make your A/C stop working because of a leaky pipe.

6.     The refrigerant leaks out

If you want to know about the cost of fixing your car’s A/C, then you have to consider how much money it will take and where the problem occurred. Apart from a broken compressor or leaky hose, the next most common cause of a breakdown in the air conditioning system in your car is when the refrigerant inside of that system leaks out.

How Much Is It To Replace A Car A/C Compressor?

Car repairs can come out of nowhere and can cost an arm and a leg depending on the issue. This article will be discussing the average cost of replacing a car air conditioning (A/C) compressor.

On average, to get the A/C compressor replaced by a professional is around $1,100. The part alone can range from $600 to $850 which takes up most of the cost. At this point, it would be well worth it to just have a professional take care of the issue. However, it is possible to replace the part on your own if you are mechanically inclined.

The A/C compressor is responsible for taking low-pressure and low-temperature air and then converting it to high-pressure and high-temperature air. This allows the A/C system to blow cold air. If the compressor is bad the vehicle will not be able to produce cool air making for a miserable drive on a hot day.

All in all, the cost of repair depends on where you live. Be prepared to be spending over $1,000 to have your A/C compressor changed by a professional.

Is It Worth Fixing A/C Compressor In Car?

That is a question that comes up often for anyone owning a vehicle. People really want to know more about car ownership in general. Then they can get the car repairs done right in time. That is a time-honored tactic and one used by many people.

Suggest top ways to fix the car and get the project done right. Think about which option people can pursue in record time. The car shop is prepared to handle questions like these in real life too.

The new reviews for the car service are coming to the front. That project is bound to move ahead in a short time span. Think about which deals will elucidate a new plan. People really want to make things happen with their client list. That process is fast and easy for all of those who get involved.

Why Is My Car’s A/C Not Blowing Cold Air?

During the summer you want your vehicle’s air conditioning to blow cold, revitalizing air for your and your passengers’ comfort. There are several reasons why your automobile air conditioner isn’t blowing chilly air.

Refilling your car’s A/C refrigerant or addressing a refrigerant leak may be as easy as having to charge your car’s A/C refrigerant, but it may also involve intricate technical climate control maintenance or a sliding compressor clutch to get your air conditioning working properly again.

If your car’s A/C isn’t blowing cold air, it’s likely the compressor is malfunctioning. There are many reasons this can happen, including a blown fuse, low refrigerant levels, or an electrical failure in the compressor circuit.

The compressor, located in the front of the engine, is driven by a serpentine belt. If you can hear the compressor clicking on and off while your car is running, this may be an indication of a problem.

Another cause of A/C problems in cars is poor maintenance. When your AC is working properly, it is at a high pressure of about 15 bars. If there is a leak in this system, the pressure will drop, which will cause the system to stop working. You should check the compressor for signs of leaks.

If your car’s air conditioning system is malfunctioning, you should visit a mechanic as soon as possible. Your car’s air conditioning system is a vital safety feature, and you don’t want to be stranded in the middle of nowhere without it. Without it, you and your passengers could easily become dehydrated or even suffer from heat stroke.

If you suspect a compressor failure, consult a mechanic or a professional mechanic. A car A/C system is very complex, and it’s difficult for the average person to diagnose a problem. Make a note of the date when the problem first occurred and other factors that might have caused the problem.

Mechanic repairing car airconditioning system.


All of the above-listed causes of a car’s A/C stoppage would stop your air conditioning from working properly and you have to take good care of them, but if you don’t want your air conditioning system to break down in the first place or if it is broken, then there are a few items that you can check out.

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About Brock Rangel

Hi, I am Brock, and I am the lead editor/photographer for TheCarColony. I have been a mechanic for over 14 years now, and I am here to spread my car knowledge across the web!

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