Just 50 years ago, only around half the cars in the country were equip with air conditioning. If you didn't drive a convertible, a leisurely Sunday cruise meant opening the windows wide, often letting in the hot, humid air. Also, there was even less relief on rainy or sticky days. Today, we've become so accustomed to AC in our vehicles that it's hard to believe we actually survived without it.

If your AC system fails, it's not only uncomfortable but can be dangerous if your passengers include children, the elderly or pets. In addition, a faulty system may be bad for the environment, as a refrigerant leak can be harmful to the earth's ozone layer.

Auto Air Conditioning Design

Most contemporary vehicles feature AC systems that are compose of four main components. These include:

1. Compressor.

The compressor is the belt-drive pump connected to the engine. Known as the "heart" of the AC system, it compresses and pumps the refrigerant to the evaporator. Without the compressor, the system cannot function.

2. Condenser AC

Heat is dissipate in the condenser. Similar in appearance to a radiator, only thinner, the condenser is usually locate just in front of the radiator. The refrigerant enters the condenser, but as it's cooled, it becomes a liquid. It's vital that air flows smoothly whenever the AC is running.

3. Evaporator AC

This "miniature radiator" performs many functions, the most important of which is removing heat. A secondary function of the evaporator is dehumidification. You can control the evaporator temperature by controlling the refrigerant pressure and flow into the evaporator.

4. Pressure-regulating devices or thermal expansion valve. AC

Mounte on both the low and high sides of the AC system, the two pressure-regulating devices are safety switches that monitor the refrigerant pressure. Also, low pressure poses a risk for compressor damage that can result from a low level of oil. High pressure can result in damage to the compressor as a consequence of overheating.

The thermal expansion valve, also known as a thermostatic AC metering valve, turns the high-pressure gas into a low-pressure liquid refrigerant.

AC Problems

A number of problems can arise with any of your vehicle's AC system components that can affect the entire system. An electrical failure can allow acid to build up and damage any one of the system's components. In addition, if there's not enough oil lubricant in the system, problems can arise. Think of the lubricant as the "blood" of your vehicle's A/C system.

Dirty coils fille with built-up dust and grime can cause the A/C to run continuously, resulting in increase pressure and causing the compressor to fail. Another cause of overheating and compressor failure is blocking or damaging refrigerant lines. Cracks or holes in the lines can also cause the system to leak refrigerant. Also, the resulting low refrigerant level forces the compressor to work harder pumping refrigerant through the system, causing the compressor to ultimately break down. Another cause of compressor failure is adding too much or using the wrong type of refrigerant.

Symptoms of a Faulty Condenser

Symptoms of a faulty condenser include insufficient cooling and leaks in the system. Because of its location, the condenser can be damage in a frontal collision or by debris that flies up off the road. A green-colored, oily residue in the area can be indicative of leaks in the condenser. In addition, leaves and other debris can clog the condenser fins and reduce the airflow, decreasing the efficiency of the entire system.

Most problems with evaporators involve leaks. Also, the main cause of evaporator leaks are broken seams and corrosion that results from moist debris. A fail evaporator must be replace.

No matter which of your car's A/C components is damage, it's imperative that you take it to a reputable automotive repair shop. Creech Import Repair is a 5-star-rated auto repair shop. We have been serving our satisfied customers for a quarter-century. Lastly, let us at Creech inspect your car's A/C system and make any necessary repairs to ensure the remainder of your summer cruises are enjoyably cool.

Air Conditioner - If your car's air conditioner stops working on a hot day, then the ride to your destination can be quite uncomfortable. A ride can be even more uncomfortable if you are stuck in traffic. Fortunately, there are things that you can do if your air conditioner is not blowing cold air.

It Needs to be Recharged

Your A/C system may not be blowing cold air because it needs to be recharged. You can charge your own refrigerant. However, if you do not want to take care of this task yourself, then you can take your car to the mechanic. Your A/C should start blowing air after the refrigerant is recharged.
Keep in mind that there is no specific recommendation about how often you will need to recharge your system. However, you may need to have it recharged as soon as you notice that your A/C is not blowing as much cool air as it used to.

The Freon is Leaking

Freon, or coolant, is the chemical in the air conditioning system that cools the air. If the system is leaking, then this chemical will eventually run out. Today's A/C systems are more sensitive than the older ones. The air conditioner will not work properly if there is not enough of this chemical.
You will need a charging machine in order to ensure that there is enough of the cooling agent. This device will take away all of the chemical from the air conditioner system. After that, it will input the right amount of cooling agent for the system.
A leak can develop slowly. It can also develop without you noticing it. If you put more coolant in your system and still have a problem with getting cool air, then there is likely another issue. You may need to have your hoses and other parts of the air conditioner checked.

The Compressor is not Engaging

There are a variety of things that can cause this. It may be caused by an electrical failure in the A/C compressor circuit. Your car may be overheating, which can cause this problem. Additionally, the coolant may be low.
Today's vehicles are controlled via computer. If the computer senses a problem, then the air conditioner is often the first system that is shut down. You can have a part replaced if it is not functioning properly.

You Have a Stuck Blend air Door

Your ventilation system has a small component that is known as the blend air door. The door is designed to draw cool air when you switch the system from warm air to cool air. If the blend air door does not change, then it will draw hot air from the engine and blow it. This is a problem that has to be corrected by a mechanic.

You Feel the Cool Air, but There is None Blowing

This could be a sign that the fan is no longer working. This problem may be fixed easily. For example, the wire may need to be changed. You may also need to get to have your fan unit replaced. This is a problem that you will have to hire a mechanic for because you will probably not be able to take care of it yourself. The mechanic may have to take the entire dashboard apart in order to reach every component.

Other Problems That can Cause Your Air Conditioner to not Blow Cool Air

Your air conditioner is very complicated. There are some things that can easily be fixed. For example, if your coolant is low, then all one has to do add more. This is a problem that you can fix yourself. You can purchase coolant at just about any hardware store.
However, in some cases, this problem is indicative of more serious issues. If you are unable to fix the problem yourself, then it is best for you to contact a mechanic. Serious problems are sometimes easy to fix, but it is still best for you to allow a mechanic to take care of this job for you. In many cases, people make problems worse by attempting to fix them. A mechanic can pinpoint the problem and find the right solution.

Car Air Conditioning

Car air conditioning problems are present year-round, but they seldom come into focus until you really need to stay cool. That's why so many drivers notice that their air conditioning isn't performing up to par during hot months.
The problem is that there are many problems that can result in inefficient air conditioning in a car. Pinpointing these problems and fixing them is something that is best left to an experienced mechanic.

Let's explore why you should let your mechanic fix your car's air conditioning problems rather than trying to fix them yourself.

1. Improper Refrigerant Levels

Many people assume that their air conditioner's refrigerant levels are to blame for improper cooling.

While they are generally right about this course of logic, they generally do not have the means to properly fix it. Putting a can of refrigerant into the air conditioner can have varying results, especially when done without paying attention to the refrigerant levels present in the car.

Too much refrigerant, for example, can cause symptoms similar to having too little. Your car's air conditioner may freeze up, which in turn results in poor cooling and the inevitable malfunctioning of your air conditioning system.

2. Car Air Conditioning Perishable Components

Air conditioning systems have numerous components made of rubber, plastic and other materials that are significantly less durable than metal. These components will inevitably fail due to regular wear, damage from the heat and the sun and small defects present in the components themselves.

Replacing these parts is ideal when it comes to repairing a car's air conditioning system. This eliminates refrigerant leaks, keeps cool air in, and helps to expedite the removal of warm air from your car's cab.

3. Damaged Metal Parts

Metal parts are designed to be more durable, which is why they are used for everything from refrigerant lines to the condenser that takes the heat out of your car's cab.

The problem is that these components are not immune to damage. Corrosion can lead to leaks, which in turn can lead to the inevitable failure of an entire air conditioning system. Pumps will inevitably stop working. Even the parts of air conditioning systems responsible for circulating air will fail given enough time.

Repairing these parts and replacing them when necessary will increase efficiency and lifespan. Each Part Affects the Whole Air Conditioning System

One underperforming part can influence the entire air conditioning system. One small leak forces the system to work harder, which in turn leads to higher repair costs.

Don't delay when it comes to any component of your car. Call Creech Import Repair at (919) 872-1999 today to schedule an appointment to have your import fixed by our skilled mechanics.