If your car AC is blowing warm air in most cases the problem is not just low refrigerant. It is a leak or component failure that needs to be diagnosed properly
Auto AC Blowing Warm Air?
Here Are The Most Common Causes
1. The most common cause is low refrigerant
Your AC system is sealed so it should not lose refrigerant over time. If it’s low then there is almost always a leak somewhere your vehicles AC system.
Signs include:
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Air starts cold then gets warm
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AC works for a short time after recharge
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Weak cooling overall
Leak in the AC System
Leaks can happen in:
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Hoses
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Condenser
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Evaporator
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O-rings and seals
Some leaks are very small and require advanced detection methods to find such as Kool2U's Max-Kool Auto AC Leak & Diagnostic Service.
Bad AC Compressor
the compressor is what circulates refrigerant. If it fails then your cars AC system cannot cool.
Sings:
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Loud noise when your vehicles AC is on
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AC clutch not engaging
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Warm air all the time
When your automobile is not moving the fans pull air through the condenser. If the fans fail your cars AC will struggle.
Signs:
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Cold while driving but warm when parked or at a stop light
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Engine temperature continues rising
Modern AC systems rely on sensors & controls
Problems include:
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Blown fuses
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Faulty pressure switches
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Wiring issues
Clogged or Restricted Components
Parts like the expansion valve or orifice tube often get blocked
Signs:
Incon
Why An AC Recharge is NOT the fix
do Not Rely On Just Adding Refrigerant
If you cars AC is low then adding refrigerant without locating and repairing the leak will only work temporarily and likely to damage other components of your AC system. Air and Refrigerant are not friends and overly high pressure will damage other components in your AC system.
Can Kool2U Diagnose & Repair My Cars AC at Home or at the Office?
Kool2U has both a full service auto repair shop & mobile auto AC repair. We built our reputation in San Antonio, New Braunfels, & Boerne performing advanced auto AC repair with our exclusive, patented Max-Kool Auto AC Leak Detection System.
We bring the tools and expertise directly to you so you can choose which works best for you.
Can I Keep Driving With My Cars AC Blowing Warm Air?
Yes but the problem can get worse over time especially is the compressor is not working properly.
How Do I Find An AC Leak On My Vehicle?
:Auto AC System leaks are found using pressure testing and specialized diagnostic tools that can detect small leaks in the system.
How Long Does It Take To Fix Auto AC Problems?
Diagnostics at most dealerships or local repair shop take about an hour. Be aware that they are using the old industry standard low pressure test. Kool2U's Max-Kool AC Leak Detection Test takes about an hour and a half because it utilizes both a low and high pressure test. When combined with Kool2U's proprietary test gas our leak detection finds the leaks others miss. That is the Kool2U Max-Kool difference!
What Are The Signs My Cars AC Compressor Is Failing'
Common symptoms include:
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Loud clicking or grinding noise
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AC blowing warm or inconsistent
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Compressor clutch not engaging
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Pressure readings outside normal range
If the compressor fails it can send debris through the AC system which may require more extensive & costly repairs
What Causes AC Leaks In Cars?
Leaks are typically caused by:
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Worn seals and O-Rings
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Damage to hose or the AC condenser
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Corrosion inside components
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Road Debris hitting the condenser
Is Using AC Stop Leak Products Safe?
No. Stop leak products can:
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Damage expensive components
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Clog the system
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Contaminate recovery machines
Most professional auto repair shops will not service an AC system that has been treated with stop leak.
How Often Should My Car's AC System Be Serviced?
Your vehicles AC system should be inspected:
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Every 1 to 2 years
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Anytime performance drops
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In Texas its best before summer hits. Texas heat ain't no joke.
Preventative checks can catch leaks in your AC system early & save loads of money down the road.
What Is The Difference Between R134a & R1234yf Refrigerant?
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R134a was used in older Auto AC Systems. Most 2018 & newer cars & trucks use R1234yf Refrigerant.
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R1234yf Refrigerant is more environmentally friendly but also much more expensive.
They require different equipment to be serviced and cannot be mixed!
Can a bad AC affect my cars engine performance?
Yes. Especially if the compressor is failing there is an excessive load on the engine.
In some cases it can reduce your cars fuel efficiency or cause drivability issues.
Kool2U's AC Leak Detection & Diagnostic System
A Leap Ahead in Automotive AC Diagnostics
What makes Kool2U's Max-Kool AC Diagnostic System Different?
Kool2U's MaxKool Auto AC Diagnostic System is superior to that being offered by our competitors because they are using a system developed in the 1950's.
The auto ac leak detection system used at dealership repair service departments, big box auto repair shops, neighborhood & your local San Antonio area mechanics is that same auto ac leak detection system developed in the 1950's.
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Our MaxKool AC Diagnostic Service is a leap ahead. Developed, tested, & patented. Our auto ac leak detection system is available exclusively through Kool2U Auto Repair Service. It was created by our own ASE Master Technician and proven over the last few years out in the field by him & our own ASE Certified Mobile AC Repair Technicians.
Simply stated, we find the leaks our competitors miss. Our system uses both a negative (vacuum) & a positive pressure test. Our competitors can only perform a negative pressure test. Combined we our patented, proprietary test gases our auto ac leak detection system is far more accurate. Our auto ac diagnostic service gets to the root of the problem and far more accurately identifies which parts actually need to be repaired & replaced!
We are auto ac repair specialists! We repair more vehicle auto ac systems in a week than our competitors repair in a month or even a year!
Does Kool2U service the new R1234yf refrigerant?
Yes. Our shop & mobile service vehicles are fully equipped to handle R12, R134, & R1234yf refrigerant. Our state of the art equipment allows us to provide recovery and recharge for all three types of Freon. If your vehicle is 2018 or older then it is most likely an R1234yf ac system
Can Kool2U Repair AC Systems on Heavy Equipment or RV's?
Yes. Absolutely. We provide specialized mobile AC Repair for Class A/B motorhomes, firetrucks, ambulances, school buses, and construction equipment likes excavators & cranes. In the field & on the jobsite. We will come to you at RV Parks and jobsite in San Antonio, New Braunfels, Boerne, Fredericksburg, Pearsall, Seguin, San Marcos, Kyle, & more!
Does Kool2U Only Specialize In Auto AC Repair Service?
No. Auto AC Repair is just where our services begin. Our staff is led by an ASE Master Technician w/over 30+ experience in the auto repair industry. Combined with our nearby auto repair service partners we provide Advanced Vehicle Diagnostics. Advanced Auto Electrical Diagnostics. OEM Module Programming. Windshield Repair & Replacement. ADAS Calibration. Catalytic Converter Repair/Replacement. Exhaust Systems. Suspensions, Transmissions, & more!
Does Kool2U Service European & Other Luxury Brands?
Yes. Our staff is led by an ASE Master Technician w/30+ years in the auto repair industry. We have specialized tools & software to service BMW, Mercedes-Benz, Audi, Jaguar, & other European automobiles both in shop & our ASE Certified mobile technicians.
Can Kool2U work on high performance muscle & classic cars?
Yes. Our team has extensive experience with performance platforms handling everything from precision maintenance to performance upgrades. Combined with our nearby auto repair partners we've got your vehicle covered.
Does Kool2U Offer Fleet Maintenance For Local Businesses?
Yes. With our hybrid auto repair service we provide priority mobile servicing for commercial fleets & local businesses ensuring your work trucks and delivery vans stay on the road and on the jobsite with minimal downtime.
What Is The Warranty On Kool2U Auto Repairs?
Now with our 5 Year/60k Warranty Kool2U offers an industry leading warranty on most parts & labor.
Are Your Technicians ASE Certified?
Yes. Our team is led by an ASE Master Technician with over 30 years in the auto repair industry. Our technicians are trained by Aaron and are ASE Certified.
Does Kool2U use OEM or Aftermarket Parts?
We use prioritize high quality OEM parts for our auto repairs or premium grade aftermarket parts to ensure the longevity of the repair & maintain your vehicle's factory warranties & standards.
How Does Kool2U's pricing compare to a dealerships?
We will match or beat our competitors the vast majority of the time plus we will provide a much higher level of personalized, expert, one on one service on your schedule where you need it.