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Refrigerant

You certainly can add your own refrigerant, but be careful to not put too much in. Don't worry about adding oil, that is something you do if you replace components. They sell refrigerant cans (https://www.yourmechanic.com/parts/refrigerant) with a built in gauge...

Hello, thank you for writing in. An air conditioner that is blowing warm is typically an issue with low refrigerant pressure. This can be due to a sudden leak, or it can be due to a failed A/C compressor. The...

Hello, thank you for writing in. Most vehicles that need recharging take less than one can to fill their system. If you are having trouble pressurizing, you may have a leak. Not all cans are made equal, and you want...

Hi there. Check the thermostat on the air conditioning system and see if its freezing up again by shutting off the vehicle and letting it sit for about 30 minutes. If you see frost on the evaporator, then the system...

The system hold 1.0 lbs of refrigerant for the air conditioner. Remember if you lost oil out of leak then the system oil total is 4.5 oz. You may need to add a couple oz of oil also. The system...

The best thing to do in your situation would be to have an a/c performance test done (https://www.yourmechanic.com/services/heating-ac-inspection). This test will use a refrigerant recycling machine to test the high and low pressure sides of your a/c system to lead...

Hi there. Has the system been charged (https://www.yourmechanic.com/services/ac-recharge) recently? If so, there could be too much refrigerant in the system causing the pressure valve to vent the excess pressure; the high pressure sensor is there to prevent catastrophic system failure...

Hey there. This model seems to have received the least-effective AC of any of the Hyundai models in your market. Whether it's the too-small engine, vents that only help the front seat passengers, and so on. Start with having a...

Hello. I will be glad to help you with your Murano. A common cause of a "no cooling" condition is the system is low on refrigerant, however, inasmuch as your car is only 6 years old, if the refrigerant level...

Hello. It is possible to damage the compressor by introducing liquid refrigerant. The compressor is designed to compress vapor or gas, not liquids which indeed are not compressible. If your system is not working right now, a possibility is you...

Quite often, issues with maintaining cold air flow (https://www.yourmechanic.com/article/why-won-t-my-ac-blow-cold-air) with an air conditioner are due to a commonly overlooked issue - charging AC refrigerant. Although most vehicles (like your Toyota 4-Runner) have a closed-loop AC, when a leak occurs and...

Hello, thank you for writing in. With the amount of work done on the air conditioning system up to this point, you may have introduced air into the system. Make sure the refrigerant is properly cycled out and recharged, rather...

Hi there. The air conditioning system can have many things that could contribute to a heat cycle condition. Check the following conditions to find the source of heating issue: Check The condenser for any dirt or plugged up vent fins...

The refrigerant inside the compressor has nothing to do with the compressor pulley turning freely when the compressor is not engaged. If the pulley is not turning free then the bearing inside the pulley will need to be replaced. If...

Your a/c should of cycled out at 24 psi on the low side and you should not let it get to zero. The a/c cycling switch will need to be replaced first then the system rechecked. You will find the...

Hello. From what you describe, it would appear that your vehicle may possibly have a refrigerant leak in the AC system. I would carefully inspect the area where the fluid is coming from to see if you can figure out...

Hello and thank you for contacting YourMechanic. The noise you are hearing is the serpentine belt burning on the A/C clutch pulley from the A/C compressor being locked up. Open the hood and with a flashlight look at the A/C...

Hello. This can be caused by a few different things. Most of the time it is caused by low refrigerant in the system, but I have seen a lot of these switches fail as well as the pressure switches in...

Hello. You will always get colder air when on recirculate. When taking in the outside air the A/C system will be able to drop the temperature coming in by about 20 to 30 degrees. This means if the outside air...

Hello. Thanks for writing in about your 2011 Chevrolet Equinox. An AC that blows hot air can be caused by a few things. If the vehicle used low cold air, but over time began to blow warm, it may be...