How to

How to Fix a Car AC Leak?

How to Fix a Car AC Leak? The automobile air conditioner isn’t blowing cold air – this appears to be the most dreadful thing to learn while on a lengthy drive in the thick of the summer heat. Due to the frequency of damaged components and leaks, an AC problem is extremely prevalent. If the refrigerant level continues to drop despite multiple refills, there must be a leak somewhere. You must understand how to check for leaks in a car’s air conditioning system and how to repair an AC leak in a car.

How To Find A Leak In Car AC?

  1. A Visual Inspection
  2. Use Soap
  3. Black Light
  4. Use a Sniffer

How to Fix a Car AC Leak?

Car air conditioning leak repair is a time-consuming and costly process. However, if you have adequate mechanical knowledge, the correct equipment, and patience, you can still do it.

1. Apply A Super Seal

Apply A Super Seal

The sealant is a low-cost, quick-fix solution for sealing tiny leaks in the air conditioning system. R-134a Super Seal may be found at practically any car parts store. Turn off the engine and crank up the AC and fan to maximum settings. Connect a hose to the Super Seal can through the hose coupler and the low-pressure port. After the liquid has been transferred, replenish the system with R-134a refrigerant. Run the air conditioner for at least 15 minutes to allow the Super Seal to distribute throughout the system.

2. Work On The Evaporator

Work On The Evaporator

There is no Super Seal that can repair an evaporator leak. You must either repair it or replace it entirely. To repair pinhole-sized ruptures, cut and crimp the tube. A little soldering can help in this situation. When the puncture(s) is/are larger, the only solution is to replace the evaporator. To instal the evaporator, you must first remove the dashboard. You should also vacuum the system before charging it.


Repairing a leaking car air conditioning system is a do-it-yourself project. Many leaks can be repaired using a can of refrigerant stop leak and a hose to introduce it into the system. For significant leaks, the faulty component must be replaced and the refrigerant reintroduced. If you have a difficult-to-find leak, a dye can be injected into the A/C system to help locate it. There are also refrigerant leak detectors that can detect a leak and beep loudly when it gets close to a leaking area. A low-cost leak detector is an ideal alternative because it is quick and simple to use.

Also Read: How Much Does it Cost to Fix AC in Car?

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