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 whether or not you need them to recharge your A/C system.
Getting Your A/C Charge “Just Right”
Is your car’s AC blowing warm air? Discover how to re-charge your Air Conditioning System with AC Pro – Following these quick and easy steps.
How to Find My Car’s Low Pressure A/C Port
Recharging your car’s A/C but not sure where it goes? We’ve got you covered. Read our simple guide on how to find the low-pressure A/C port 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.
How to Diagnose Your Car’s Air Conditioner 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.
Check our A/C Pro R-134a system pressure chart for guidance using A/C Pro recharge products. Find quick and easy help to interpret your pressure reading.
Coolant vs. Refrigerant
AC Pro can help you understand more about your car’s A/C system – learn what coolant is, how it works, and how it’s different from refrigerant.
Guide To A/C Compressors
Need some advice from AC 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.