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
A/C Pro 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
  • Learn more
  • 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.