Adding more refrigerant may not solve the problem. If your A/C system is very low on refrigerant, it’s evident that there is a leak. Simply adding more refrigerant doesn’t fix the leak. Because of this, moisture and air may be getting into the system, increasing the potential for further damage.
Refrigerant should be added by weight, not by pressure. Unfortunately, an A/C recharging kit only comes with a pressure gauge and no way to measure exactly how much refrigerant should be added. This can result in overcharging and damage to your A/C system.
Stop leak sealer may cause more damage. Most DIY A/C recharging kits come equipped with a stop leak compound. While this is intended to plug leaks in the system, it may not successfully do so. Furthermore, it contaminates the refrigerant in your A/C system. When you end up taking your vehicle to your local auto repair shop, they may charge you extra for filtering out the stop leak compound so they can run the refrigerant through their recycling machine.
Professional A/C service is best
While there may indeed be some Do-It-Yourself auto repairs that you can handle, fixing your malfunctioning A/C system is probably not one of them. Instead of using a DIY A/C recharge kit, we recommend having your vehicle serviced by a trained mechanic at a trustworthy auto repair shop. Keep your cool with professional A/C service today!