How To Use Our Products

Deciding to fix your car air conditioning yourself is a good first step. Learn how to use A/C Pro products so everything goes smoothly and you avoid any mistakes.

How To Use Our Products


Looking for help with how to fix the air conditioning in your car? Use these guides to learn about your vehicle’s air conditioning system and get started today.

  • Guides

    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.

    Learn more
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  • Guides

    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.

    Learn more


Got a question about your car air conditioning? Find answers to all A/C Pro’s frequently asked questions here – from the basics to help locating leaks.

  • If your A/C is not blowing cold you probably are low on refrigerant due to a leak. Most leaks are in rubber components such as O-rings, hoses and gaskets.

  • Need help finding your low side port? Use our Low Pressure Port Finder.

  • No. Your car’s A/C refrigerant never goes bad. Nor do you “use up” the refrigerant that is in your system. If your vehicle’s A/C system pressure is low, your vehicle has a refrigerant leak and that leak will need to be repaired in order for your system to hold refrigerant. If your vehicle is able to maintain a charge for a period of two weeks or longer, then it is possible to seal the leak with sealant such as Super Seal. If your system will not hold a charge for at least a two week period then it is advisable to seek professional assistance to find and repair the leak.

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.