How To Fix Car Air Conditioner Not Cooling: A Complete Guide

Is your car air conditioner blowing hot air instead of a refreshing cool breeze? Don’t sweat it! This comprehensive guide from CARDIAGTECH.NET will walk you through the common causes of a car AC not cooling and provide you with the knowledge and potential solutions to get your system back to its optimal performance. Learn how to troubleshoot, diagnose, and potentially fix the issue yourself, or understand when it’s time to call in the professionals.

1. Understanding Your Car’s AC System

Before diving into the troubleshooting steps, it’s essential to understand the basic components and functioning of your car’s air conditioning system. Knowing how each part contributes to the cooling process will help you pinpoint the source of the problem.

The typical car AC system works through a continuous cycle involving these key components:

• Compressor: The heart of the system, responsible for compressing the refrigerant gas and circulating it throughout the AC loop. Think of it as the pump that drives the entire cooling process.
• Condenser: Located at the front of the car, near the radiator, the condenser dissipates heat from the refrigerant gas, transforming it into a high-pressure liquid.
• Expansion Valve (or Orifice Tube): This component regulates the flow of refrigerant into the evaporator, causing a pressure drop that leads to cooling.
• Evaporator: Situated inside the car’s cabin, the evaporator absorbs heat from the air blowing across it, cooling the air before it enters the passenger compartment. This is where the magic of cold air happens.
• Refrigerant: The lifeblood of the AC system, a special chemical substance that absorbs and releases heat as it changes state from liquid to gas and back again. Common refrigerants include R-134a and the newer R-1234yf.

Understanding this cycle is the first step in understanding “How To Fix Car Air Conditioner Not Cooling.”

Alt Text: Diagram of a car air conditioning system, showing the compressor, condenser, expansion valve, evaporator, and refrigerant flow.

2. Identifying Potential Causes of a Car AC Not Cooling

There are numerous reasons why your car AC might not be blowing cold air. Let’s explore some of the most common culprits, ranging from simple fixes to more complex issues requiring professional attention.

2.1 Low Refrigerant Levels: The Most Common Culprit

Low refrigerant is perhaps the single most common reason for a car AC to stop cooling effectively. Refrigerant is the fluid responsible for carrying heat out of the cabin. Over time, even in a sealed system, refrigerant can leak out, reducing its capacity to cool.

Symptoms of Low Refrigerant:

• AC blows warm air, or air that isn’t as cold as it used to be.
• Compressor cycles on and off frequently.
• You may hear a hissing sound from the engine compartment.

Checking Refrigerant Levels:

While a professional AC system diagnosis is recommended, you can get a general idea of your refrigerant level using an AC manifold gauge set. These gauges connect to the high and low-pressure ports of your AC system and display the pressure readings. Consult your vehicle’s service manual for the correct pressure ranges for your specific model. Note: working with refrigerant can be dangerous and requires proper safety precautions.

The Fix:

• Small Leaks: A professional can identify and repair minor leaks, then recharge the system.
• Significant Leaks: Major leaks may require replacing damaged components like hoses, seals, or even the compressor.

2.2 Refrigerant Leaks: Where Is It Going?

As mentioned, refrigerant leaks are a frequent cause of AC problems. Leaks can occur in various places throughout the system due to age, corrosion, or physical damage.

Common Leak Locations:

• Hoses: Rubber hoses can become brittle and cracked over time.
• Seals and O-rings: These can dry out and shrink, creating pathways for refrigerant to escape.
• Condenser and Evaporator: These components can develop leaks due to corrosion or damage from road debris.
• Compressor: The compressor shaft seal is a common leak point.

Detecting Leaks:

• UV Dye Test: A special UV dye is injected into the AC system. Using a UV light, technicians can then identify the source of the leak by tracing the dye.
• Electronic Leak Detector: These devices can detect even tiny refrigerant leaks.
• Soap and Water: In some cases, a simple soap and water solution applied to suspected leak areas can reveal bubbles forming where refrigerant is escaping.

The Fix:

Repairing refrigerant leaks requires specialized tools and knowledge. It’s best left to qualified technicians. Depending on the location and severity of the leak, the repair may involve replacing hoses, seals, or even entire components.

2.3 Compressor Problems: The Heart of the System Fails

The compressor is the engine that drives the entire AC system. If it fails, your AC will stop working altogether.

Common Compressor Issues:

• Worn Clutch: The clutch engages and disengages the compressor, allowing it to cycle on and off. A worn clutch can slip or fail to engage, preventing the compressor from working.
• Internal Damage: The compressor’s internal components can wear out or break down, leading to reduced performance or complete failure.
• Electrical Problems: Issues with the compressor’s wiring or control circuits can prevent it from functioning correctly.

Symptoms of a Failing Compressor:

• AC blows only warm air.
• Loud noises coming from the compressor.
• Compressor clutch not engaging.
• Burning smell from the engine compartment.

The Fix:

Compressor repair is usually not an option. Replacement is generally the recommended solution. This is a complex job that should be performed by a qualified technician.

2.4 Clogged Condenser: Blocking Airflow

The condenser’s job is to dissipate heat from the refrigerant. If it becomes clogged with dirt, debris, or leaves, it won’t be able to do its job effectively, resulting in reduced AC performance.

Symptoms of a Clogged Condenser:

• AC blows warm air, especially at low speeds.
• Engine overheating.
• Reduced fuel economy.

The Fix:

• Cleaning: Carefully clean the condenser with a soft brush and a garden hose. Be careful not to damage the delicate fins.
• Professional Cleaning: In some cases, a professional AC service may be required to thoroughly clean the condenser.

2.5 Blocked Orifice Tube or Expansion Valve: Restricting Refrigerant Flow

The orifice tube or expansion valve regulates the flow of refrigerant into the evaporator. If it becomes blocked with debris, it can restrict refrigerant flow, leading to poor AC performance.

Symptoms of a Blocked Orifice Tube or Expansion Valve:

• AC blows warm air.
• Frost or ice buildup on the evaporator.
• Compressor cycling on and off rapidly.

The Fix:

Replacing the orifice tube or expansion valve is the usual solution. This job should be performed by a qualified technician.

2.6 Faulty Evaporator: No Cold Air

The evaporator is responsible for cooling the air that enters the car’s cabin. If the evaporator is damaged, leaking, or clogged, the AC system won’t blow cold air.

Symptoms of a Faulty Evaporator

• AC blows warm air
• Musty smell inside the car
• Condensation inside the car

The Fix:

Due to the evaporator’s location inside the dashboard, it is difficult to get to and repair. You will likely need a professional for this issue.

2.7 Electrical Issues: Wiring and Sensors Gone Wrong

The car’s AC system relies on a complex network of wiring, sensors, and switches to function properly. Electrical problems can disrupt the system’s operation, preventing the AC from cooling effectively.

Common Electrical Issues:

• Blown Fuses: A blown fuse can interrupt power to the AC compressor or other components.
• Faulty Relays: Relays control the flow of electricity to various parts of the AC system. A bad relay can prevent the compressor from engaging.
• Wiring Problems: Damaged or corroded wiring can cause shorts or open circuits.
• Sensor Problems: Temperature sensors and pressure switches provide critical information to the AC control system. Faulty sensors can lead to incorrect operation.

Troubleshooting Electrical Issues:

• Check Fuses: Inspect the fuses related to the AC system and replace any that are blown.
• Test Relays: Use a multimeter to test the AC relays.
• Inspect Wiring: Look for any signs of damage or corrosion in the wiring.
• Scan for Error Codes: Use an OBD-II scanner to check for any error codes related to the AC system.

The Fix:

Electrical problems can be tricky to diagnose and repair. It’s best to consult a qualified technician who has the tools and expertise to troubleshoot these issues.

2.8 Clogged Cabin Air Filter: Restricting Airflow into the Cabin

The cabin air filter prevents dust, pollen, and other debris from entering the car’s cabin. A clogged filter can restrict airflow, reducing the AC’s cooling efficiency.

Symptoms of a Clogged Cabin Air Filter:

• Weak airflow from the vents.
• AC not blowing as cold as it should.
• Musty odor coming from the vents.

The Fix:

Replacing the cabin air filter is a simple and inexpensive maintenance task that can significantly improve AC performance. Consult your vehicle’s owner’s manual for the correct filter type and replacement interval.

Alt Text: Close-up of a dirty cabin air filter clogged with dust and debris.

3. Step-by-Step Troubleshooting Guide

Now that you know the potential causes, let’s go through a step-by-step troubleshooting process to help you diagnose the problem.

Step 1: Preliminary Checks

• Check the Basics: Make sure the AC button is turned on, the blower fan is set to a high speed, and the temperature control is set to the coldest setting.
• Listen to the Compressor: With the engine running and the AC turned on, listen for the compressor to engage. You should hear a click as the clutch engages. If you don’t hear anything, the compressor may not be receiving power.
• Check the Cabin Air Filter: Inspect the cabin air filter and replace it if it’s dirty.

Step 2: Visual Inspection

• Inspect the Condenser: Check the condenser for any signs of damage or blockage. Clean it if necessary.
• Look for Leaks: Examine the AC hoses, connections, and components for any signs of refrigerant leaks (oily residue).

Step 3: Testing and Diagnosis

• Check Refrigerant Pressure: Use an AC manifold gauge set to check the refrigerant pressure. Compare the readings to your vehicle’s specifications.
• Check Electrical Connections: Inspect the wiring and connectors related to the AC system for any signs of damage or corrosion.
• Scan for Error Codes: Use an OBD-II scanner to check for any error codes related to the AC system.

Step 4: Consult a Professional

If you’ve gone through these troubleshooting steps and are still unable to diagnose the problem, it’s time to consult a qualified technician. AC systems are complex, and some repairs require specialized tools and expertise.

4. DIY vs. Professional Repair: Knowing Your Limits

While some AC repairs can be done by a DIYer with some mechanical knowledge, others are best left to the professionals.

DIY-Friendly Repairs:

• Replacing the cabin air filter.
• Cleaning the condenser.
• Checking and replacing fuses and relays.
• Adding refrigerant (with caution and proper tools).

Repairs Best Left to Professionals:

• Refrigerant leak detection and repair.
• Compressor replacement.
• Evaporator replacement.
• Orifice tube or expansion valve replacement.
• Complex electrical troubleshooting.

5. Preventing Future AC Problems: Maintenance is Key

The best way to avoid AC problems is to perform regular maintenance. Here are some tips to keep your AC system in top condition:

• Run the AC Regularly: Even during the winter months, run the AC for a few minutes each week to keep the system lubricated and prevent seals from drying out.
• Change the Cabin Air Filter Regularly: Follow your vehicle’s recommended maintenance schedule for cabin air filter replacement.
• Inspect the Condenser: Keep the condenser clean and free of debris.
• Have the System Inspected Regularly: Have your AC system inspected by a qualified technician every year or two to check for leaks and other potential problems.
• Recharge Refrigerant as Needed: If you notice your AC isn’t blowing as cold as it used to, have the refrigerant level checked and recharged if necessary.

6. Essential Tools and Equipment for AC Repair

If you decide to tackle some DIY AC repairs, you’ll need to have the right tools and equipment. Here are some essentials:

• AC Manifold Gauge Set: Used to measure refrigerant pressure.
• Vacuum Pump: Used to evacuate the AC system before recharging.
• Refrigerant Charging Scale: Used to accurately measure the amount of refrigerant being added to the system.
• UV Leak Detection Kit: Used to detect refrigerant leaks.
• Multimeter: Used to test electrical components.
• OBD-II Scanner: Used to scan for error codes.
• Basic Hand Tools: Wrenches, sockets, screwdrivers, pliers, etc.

CARDIAGTECH.NET offers a wide range of high-quality tools and equipment for automotive repair, including those needed for AC service.

7. Understanding Refrigerant Types and Regulations

Refrigerant types have evolved over the years due to environmental concerns. Older vehicles typically use R-134a refrigerant, while newer vehicles are increasingly using R-1234yf. It’s crucial to use the correct type of refrigerant for your vehicle.

Regulations regarding refrigerant handling and disposal are also in place to protect the environment. It’s illegal to vent refrigerant into the atmosphere. Always follow proper procedures for recovering and disposing of refrigerant.

8. The Importance of Professional AC Service

While some AC maintenance and minor repairs can be done at home, it’s crucial to understand the importance of professional AC service. Qualified technicians have the knowledge, tools, and expertise to diagnose and repair complex AC problems safely and effectively.

A professional AC service can include:

• Comprehensive system inspection.
• Refrigerant leak detection and repair.
• Compressor replacement.
• Evaporator replacement.
• Orifice tube or expansion valve replacement.
• Electrical troubleshooting.
• Refrigerant recharging.

9. How CARDIAGTECH.NET Can Help You Keep Your AC Running Cool

At CARDIAGTECH.NET, we understand the importance of a properly functioning AC system. That’s why we offer a wide range of tools, equipment, and resources to help you keep your AC running cool.

We carry:

• AC manifold gauge sets
• Vacuum pumps
• Refrigerant charging scales
• UV leak detection kits
• OBD-II scanners
• And much more

We also offer expert advice and support to help you choose the right tools and equipment for your needs.

Don’t let a faulty AC system ruin your driving experience. Contact CARDIAGTECH.NET today to learn more about how we can help you keep your car’s AC running at its best. You can visit us at 276 Reock St, City of Orange, NJ 07050, United States. Or reach us via Whatsapp at +1 (641) 206-8880. You can also visit our website CARDIAGTECH.NET.

10. Real-World Examples and Case Studies

To further illustrate the common AC problems and their solutions, let’s look at a few real-world examples:

Case Study 1: Low Refrigerant in a 2015 Honda Civic

• Problem: The AC was blowing warm air.
• Diagnosis: A technician used an AC manifold gauge set to check the refrigerant pressure and found it to be significantly below the recommended level. A UV leak detection test revealed a small leak at the compressor shaft seal.
• Solution: The technician replaced the compressor shaft seal, recharged the AC system, and verified that the leak was resolved.

Case Study 2: Clogged Condenser in a 2010 Toyota Camry

• Problem: The AC was blowing warm air, especially at low speeds.
• Diagnosis: A visual inspection revealed that the condenser was heavily clogged with leaves and debris.
• Solution: The technician carefully cleaned the condenser with a soft brush and a garden hose, removing the blockage.

Case Study 3: Faulty Compressor Clutch in a 2018 Ford F-150

• Problem: The AC was blowing only warm air, and the compressor clutch was not engaging.
• Diagnosis: A technician used a multimeter to test the compressor clutch and found that it was not receiving power. Further investigation revealed a faulty relay in the AC control circuit.
• Solution: The technician replaced the faulty relay, restoring power to the compressor clutch.

These case studies demonstrate the importance of accurate diagnosis and the range of potential solutions for AC problems.

11. Common Mistakes to Avoid When Troubleshooting Your Car AC

Troubleshooting your car’s AC can be tricky, and it’s easy to make mistakes that can lead to further damage or misdiagnosis. Here are some common pitfalls to avoid:

• Overcharging the System: Adding too much refrigerant can damage the compressor and other components. Always follow the manufacturer’s specifications when recharging the system.
• Using the Wrong Refrigerant: Using the wrong type of refrigerant can damage the AC system and may also be illegal.
• Neglecting Safety Precautions: Working with refrigerant can be dangerous. Always wear gloves and eye protection, and avoid inhaling refrigerant fumes.
• Ignoring Leaks: If you suspect a refrigerant leak, don’t ignore it. Leaks can worsen over time and lead to more costly repairs.
• Replacing Parts Without Proper Diagnosis: Don’t just start replacing parts without first properly diagnosing the problem. This can waste time and money.

12. The Future of Car AC Technology: What’s on the Horizon?

Car AC technology is constantly evolving to improve efficiency, performance, and environmental friendliness. Here are some trends to watch for:

• R-1234yf Refrigerant: This newer refrigerant has a lower global warming potential than R-134a and is becoming increasingly common in new vehicles.
• Electric Compressors: Electric compressors are more efficient than traditional belt-driven compressors and are being used in hybrid and electric vehicles.
• Smart AC Systems: Some vehicles are equipped with smart AC systems that can automatically adjust the temperature and airflow based on the occupants’ preferences and the ambient conditions.
• CO2 Refrigerant: CO2 is a natural refrigerant with a very low global warming potential and is being explored as a potential alternative to R-1234yf.

13. Tips for Maintaining AC Performance in Extreme Weather Conditions

Extreme weather conditions can put extra strain on your car’s AC system. Here are some tips for maintaining AC performance in hot weather:

• Park in the Shade: Parking in the shade can help reduce the amount of heat buildup inside the car.
• Use a Sunshade: A sunshade can help block sunlight from entering the car and heating up the interior.
• Ventilate the Car Before Turning on the AC: Open the windows and let the hot air escape before turning on the AC.
• Use the Recirculation Mode: Once the car has cooled down, use the recirculation mode to prevent hot outside air from entering the cabin.
• Don’t Overload the System: Avoid setting the temperature too low, as this can put extra strain on the compressor.

And in cold weather:

• Run the AC Briefly: Run the AC system for a few minutes on occasion to circulate the refrigerant and keep the compressor lubricated.
• Defrost Mode: Utilizing defrost mode on your AC can help remove moisture from the air inside your car.

14. Debunking Common Car AC Myths

There are many myths and misconceptions surrounding car AC systems. Let’s debunk some of the most common ones:

• Myth: Turning on the AC uses a lot of gas.
  • Reality: While the AC does use some fuel, the impact is relatively small, especially in modern vehicles with efficient AC systems.
• Myth: You should only use the AC on hot days.
  • Reality: Running the AC periodically, even in cold weather, can help keep the system lubricated and prevent seals from drying out.
• Myth: You can recharge your AC system with any refrigerant.
  • Reality: It’s crucial to use the correct type of refrigerant for your vehicle. Using the wrong type can damage the system and may also be illegal.
• Myth: AC problems always require expensive repairs.
  • Reality: Many AC problems can be resolved with simple maintenance tasks or relatively inexpensive repairs.

15. The Role of Car AC in Overall Vehicle Health

Your car’s AC system isn’t just about comfort; it also plays a role in overall vehicle health. A properly functioning AC system can:

• Improve Fuel Efficiency: By keeping the engine cool, the AC system can help improve fuel efficiency.
• Reduce Engine Wear: A properly functioning AC system can help reduce engine wear by keeping the engine temperature within the optimal range.
• Prevent Overheating: In some cases, the AC system can help prevent engine overheating by providing additional cooling capacity.
• Improve Air Quality: The cabin air filter helps remove dust, pollen, and other pollutants from the air entering the car’s cabin, improving air quality.

16. Safety Precautions When Working on Car AC Systems

Working on car AC systems can be dangerous if proper safety precautions are not followed. Here are some essential safety tips:

• Wear Gloves and Eye Protection: Refrigerant can cause frostbite and other injuries if it comes into contact with your skin or eyes.
• Work in a Well-Ventilated Area: Refrigerant fumes can be harmful if inhaled.
• Avoid Open Flames: Refrigerant is flammable.
• Depressurize the System Before Disconnecting Components: Before disconnecting any AC components, make sure the system is fully depressurized to prevent refrigerant from escaping.
• Follow Proper Procedures for Handling and Disposing of Refrigerant: It’s illegal to vent refrigerant into the atmosphere.

17. Understanding AC System Diagnostics with Error Codes

Modern vehicles are equipped with sophisticated computer systems that monitor the performance of various components, including the AC system. When a problem is detected, the system may generate an error code, which can be retrieved using an OBD-II scanner.

These error codes can provide valuable clues about the nature of the problem. However, it’s important to note that error codes are not always definitive. Further testing and diagnosis may be required to pinpoint the root cause of the issue.

Some common AC-related error codes include:

• B1416: Air conditioning system refrigerant pressure too low.
• B1417: Air conditioning system refrigerant pressure too high.
• B1421: In-car temperature sensor malfunction.
• B1424: Evaporator temperature sensor malfunction.

Consult your vehicle’s service manual or a professional technician for information on specific error codes and their potential causes.

18. Choosing the Right AC Repair Shop

If you decide to take your car to a professional AC repair shop, it’s important to choose a reputable and qualified facility. Here are some factors to consider:

• Experience and Expertise: Look for a shop with experienced technicians who are knowledgeable about AC systems.
• Certifications: Check if the shop is certified by organizations such as ASE (Automotive Service Excellence).
• Equipment: Make sure the shop has the necessary tools and equipment to diagnose and repair AC problems.
• Reputation: Read online reviews and ask for recommendations from friends and family.
• Warranty: Inquire about the shop’s warranty policy on AC repairs.
• Transparency: A good repair shop should be transparent about the diagnosis, repair process, and cost.

19. Cost Factors Involved in AC Repair

The cost of AC repair can vary depending on the nature of the problem, the make and model of your vehicle, and the labor rates in your area. Here are some common cost factors:

• Refrigerant Recharge: The cost of refrigerant can vary depending on the type of refrigerant and the amount needed.
• Leak Repair: The cost of leak repair can range from a few dollars for a simple O-ring replacement to hundreds of dollars for replacing a damaged hose or component.
• Compressor Replacement: Compressor replacement is one of the most expensive AC repairs, typically costing several hundred dollars.
• Evaporator Replacement: Evaporator replacement can also be costly, as it often requires removing the dashboard.
• Labor Costs: Labor rates vary from shop to shop.

20. How To Get an Estimate for AC Repair

Before committing to any AC repairs, it’s important to get a detailed estimate from the repair shop. Here’s how to get an accurate estimate:

• Describe the Problem Clearly: Explain the symptoms you’re experiencing and any relevant information about the AC system’s history.
• Ask for a Detailed Diagnosis: The shop should perform a thorough diagnosis to pinpoint the root cause of the problem.
• Get a Written Estimate: Make sure the estimate includes a breakdown of the costs for parts, labor, and any other fees.
• Ask About Warranty: Inquire about the shop’s warranty policy on AC repairs.
• Compare Estimates: Get estimates from multiple shops to compare prices and services.
• Don’t Be Afraid to Ask Questions: If you don’t understand something on the estimate, don’t hesitate to ask for clarification.

FAQ: Frequently Asked Questions About Car AC Not Cooling

1. How often should I recharge my car’s AC?

Typically, you should have your AC system checked and recharged every 2-3 years. However, if you notice your AC is not blowing as cold as it used to, it’s a good idea to have it checked sooner.

2. Can I recharge my car’s AC myself?

Yes, you can recharge your car’s AC yourself using a DIY recharge kit. However, it’s important to follow the instructions carefully and use the correct type of refrigerant. If you’re not comfortable doing it yourself, it’s best to take it to a professional.

3. What causes a car AC to stop blowing cold air?

There are several potential causes, including low refrigerant, refrigerant leaks, a faulty compressor, a clogged condenser, a blocked orifice tube or expansion valve, electrical problems, and a clogged cabin air filter.

4. How do I know if my car’s AC has a refrigerant leak?

Symptoms of a refrigerant leak include AC blowing warm air, oily residue around AC components, and a hissing sound from the engine compartment. A UV leak detection test can be used to confirm the leak.

5. How much does it cost to fix a refrigerant leak in a car AC?

The cost of fixing a refrigerant leak can vary depending on the location and severity of the leak. Simple O-ring replacements may cost only a few dollars, while replacing a damaged hose or component can cost hundreds of dollars.

6. How much does it cost to replace a car AC compressor?

Compressor replacement is one of the most expensive AC repairs, typically costing several hundred dollars.

7. Is it safe to drive a car with a faulty AC system?

Driving with a faulty AC system is generally safe, but it can be uncomfortable, especially in hot weather. Additionally, a faulty AC system can put extra strain on the engine and may reduce fuel efficiency.

8. Can a clogged cabin air filter cause the AC to stop blowing cold air?

Yes, a clogged cabin air filter can restrict airflow, reducing the AC’s cooling efficiency.

9. How often should I replace the cabin air filter in my car?

You should replace the cabin air filter according to your vehicle’s recommended maintenance schedule. Typically, this is every 12,000 to 15,000 miles, or once a year.

10. Where can I buy tools and equipment for car AC repair?

CARDIAGTECH.NET offers a wide range of high-quality tools and equipment for automotive repair, including those needed for AC service. Visit us at 276 Reock St, City of Orange, NJ 07050, United States. Or reach us via Whatsapp at +1 (641) 206-8880. You can also visit our website CARDIAGTECH.NET.

Having AC problems can be frustrating, but with the right tools and knowledge, you can troubleshoot and potentially fix the issue yourself. However, if you’re not comfortable working on your car’s AC system, it’s always best to consult a qualified technician.

Is your car’s AC leaving you in the heat? Don’t wait! Contact CARDIAGTECH.NET today. Our experts can help you find the perfect tools to diagnose and fix your AC issues, or recommend a trusted professional in your area. Whether you’re a seasoned mechanic or a DIY enthusiast, we’ve got you covered. Reach out to us via Whatsapp at +1 (641) 206-8880 for immediate assistance and expert advice. Let CARDIAGTECH.NET help you stay cool and comfortable on the road!