Useful A/C Guides
What is PAG and Ester oil? Do I need them to recharge my A/C?
Discover what A/C compressor oils are, how they work, and if you need them when recharging your vehicle’s A/C.
Why is my car‘s air conditioning not working after winter?
Learn about how winter and lack of use can affect your vehicle’s A/C.
Getting Your A/C Charge “Just Right”
Is your vehicle’s A/C blowing warm? Discover the quick and easy steps to recharging your vehicle’s air conditioning with A/C Pro®
How a Car A/C Works or Doesn’t
Tired of your A/C blowing warm air? Discover how to check your car A/C works (or doesn’t) – and how you could save money with simple repairs.
How Hot Does Your Car Get?
Cars left in the summer heat can often feel like stepping inside an oven. But how hot does your car get in the sun? Stay cool and find out why with A/C Pro®.
How to Find My Car’s Low Pressure A/C Port
Recharging your vehicle’s A/C but not sure where to start? We’ve got you covered. Read our simple guide on how to find the low-pressure A/C port.
The Evolution of Auto Air Conditioning
Three-wheeled automobiles to short-term trends, the history of auto A/C is long and heated. Discover the evolution of air conditioning and more with A/C Pro®.
How to Cool Down Your Car as Quickly as Possible
Is your car overheating in summer? Discover our guide on how to cool down your car quickly. Explore even more tips and tricks with A/C Pro®.
When You Shouldn’t Use A/C Pro®
When dealing with auto A/C troubleshooting, some issues can’t be fixed with DIY alone. Read our guide on when you shouldn’t use A/C Pro® to fix your A/C.
Why is my vehicle’s A/C blowing warm air?
Leaks are a common cause behind why a vehicle’s A/C system can blow warm. Explore why with A/C Pro® in this guide.
How to Diagnose Your Car’s Air conditioning Using A/C Pro®
Understand how to know what’s wrong with your car’s A/C and fix the problem, all for less than the diagnosis alone would cost at most auto repair shops.
How to Keep Your Car’s A/C from Going Bad Over the Winter
Car air conditioners sometimes break down in winter due to lack of use. A/C Pro® explains the simple way to make sure it’s still running strong when summer returns.
What product does my car need? (R-134a or R-1234yf?)
Not sure if you need R-134a or R-1234YF refrigerant? A/C Pro® is here to help you understand what type of refrigerant your car needs.
Automotive Refrigerant Pressure Charts
Our R-134a and R-1234yf air conditioning system pressure charts are a helpful tool for interpreting pressure readings when recharging with A/C Pro®
Coolant vs. Refrigerant
Learn what refrigerant is , how it works, and how it’s different from coolant.
The ABCs of Automotive A/C Recharge
A cheatsheet of everything to do with your car’s A/C, so you can feel confident using our A/C Pro® recharge products. There’s no need to call a mechanic!
How to Fix Common A/C Problems
Let the air conditioning professions at A/C Pro® help guide you through troubleshooting common A/C problems.
Guide To A/C Compressors
Need some advice from A/C Pro® about compressors? Look no further – learn what a compressor is and what it does.
How Your Car’s Heater Works (Or Doesn’t)
An explanation of how your car’s heater works, and how to diagnose the problem if it’s not keeping you warm.
A/C Port Finder
Discover how to recharge your car’s A/C with our low side port finder. Our database has vehicle-specific advice on how to find the right port, making recharging a breeze.
Locate port Other ways to find your vehicle’s car port A/C spec database or view our port diagram.