Best Automotive Replacement Air Conditioning Liquid Line Repair Kits in 2022

Last update: December 1, 2022

Can you braze AC lines with MAPP gas?

Yes, you can braze AC lines with MAPP gas. MAPP gas is a type of gas that is used for welding and brazing. It is made up of a mixture of methane and propane.

Can you patch a car AC line?

If you have a leak in your car’s air conditioning system, you may be able to patch it up with a sealant. Many hardware and auto stores sell sealants specifically for this purpose. You’ll need to locate the leak, clean the area around it, and then apply the sealant. Once it’s dry, you should have a temporary fix that will last until you can get the system professionally repaired.

Can you solder AC lines?

You can solder AC lines as long as they are not live. You will need to use a heat gun or soldering iron to heat up the wires and then apply the solder. Make sure that you have a good connection before applying power to the line.

Can you use compression fittings on aluminum AC lines?

Yes, you can use compression fittings on aluminum AC lines. Compression fittings are a type of fitting that is used to connect two pieces of pipe or tubing together. They are typically used on copper or aluminum tubing.


Dorman 800-995 5/8" O.D. Line Terminator Block Off Kit Review:


I applied this to a 2006 Chevrolet Express Van whose aluminum tubing had developed a hole and pitted, allowing all of the 134a within to flow out. They didn't want to invest much money in this van because it is the oldest in the little fleet we have at work, so I looked at the alternatives.I called to a radiator company, and they wanted $700 to run hose instead of aluminum tubing all the way to the back air conditioner. In the end, I decided that cutting out the rear air conditioner totally would be the cheapest option. They also warned me that these kinds of things wouldn't work. They were completely mistaken, though, as it has been working for more than a month. It might not last for long, but I tend to believe that they were only interested in making money. I also had to purchase this in a 3/8 version.



Dorman 800-641 3/8" O.D. Splice for A/C Line Review:


Update: A few months later, there was a slight R134a refrigerant leak, but not enough to cause the loss of all cooling.On a high pressure rear A/C line from a 2006 Chevy Suburban, it has so far held. As a result of the back A/C line rubbing against the heating hose crimp and finally cutting a gash, the entire A/C system in SUVs leaks all of its refrigerant. The dealer estimated a repair would cost around $1000, yet this splice closes the rip. To remove the damage, cut the line with a close clearance line cutter (the kind with the thumbscrews, rollers, and cutter wheel), then thoroughly clean the line until it is glossy. Torque specification is crucial. Use a crowfoot open end extension and a normal socket torque wrench to save money. To avoid overtorquing, be sure to modify your torque setting (less with the crowfoot extension). For formulas and online calculators, type "crowfoot on torque wrench" into a search engine. Alternately, if it fits, flip the crowfoot extension 90 degrees and apply the appropriate torque without adjusting.



Splice-LokA/C Repair, SPLICE-LOK, Kit, 5/16, 3/8, & 1/2 Tube Review:


Due to a rub through, a high side ac line was first repaired with a tube splice. Sincerely, I didn't expect it to seal. This splice kit is awesome with the right equipment and attention to detail. Because the brass expanders are so tightly fitted to the tubing, it's crucial to use compressor oil to lubricate both the tube and the insert. This splice will precisely close if you evenly tighten the ends while keeping the center from twisting. Wow! I'm amazed.



Dorman 800-643 5/16" O.D. Splice for A/C Line Review:


The front sway bar was supported by a high pressure tube for the rear air conditioner. That developed a hole over time, which allowed all of the refrigerant to leak out. There were at least a hundred new lines, so the time and work involved wouldn't be simple. I looked into the issue and learned that the hole could be cut out and a fix spliced in. I searched Amazon and saw this Dorman product right away. In the end, it helped me save both time and money.To choose the proper size kit, you must know the EXACT diameter of the line you wish to splice. Make sure you have adequate space to cut the damaged line and bring the cut ends into the coupler body by carefully inspecting the problematic area. To gain some play, you might need to untangle the lines from any existing support brackets. Additionally, if the piece to be removed is excessively long, you might need to purchase additional hard line and several couplers. In my case, I obtained a little length of discarded AC line from another car and used this splice connector to attach one end to a nearby connection fitting and the other cut end to the damaged line.



Air Conditioning Line Splice Kit for 5/16" Line A/C AC WITH 2 FEET OF HOSE Review:


This was quite successful. The rear line of a Land Cruiser I own has completely rusted out. After two hours of carefully cutting and fitting, the fitting on the low side of the ac line held perfectly. The only suggestion is to use short, open-ended wrenches. When the fitting is tightened, it tries to bend the lines on the car.



Dorman 800-642 1/2" O.D. Splice for A/C Line Review:


These were utilized by the mechanic to reinstall fresh heating and cooling lines. GMC Yukon that had a cooling leak in the back has connections that are currently retaining pressure without leaks and are once more providing maximum cooling! Dealer spent almost $1200 on a single tool that was utilized for another installation method! If delivered on schedule, Amazon parts are less expensive!



Dorman 800-994 5/16" O.D. Line Terminator Block Off Kit Review:


The cost of maintaining "non-essential" convenience features on ageing vehicles sometimes outweighs our willingness to "invest" in our used junker. Dorman's issue solvers undoubtedly make fixing the air conditioning systems in vans and SUVs affordable. Rear A/C can either be removed or fixed with a Dorman line splice. Thank you, Amazon, for offering these at a low price!


Does the liquid line need to be insulated?

Yes, the liquid line needs to be insulated. This is because the liquid can become very cold and cause the pipe to freeze.

How do you fix a pinhole in an AC condenser?

If you have a pinhole in your AC condenser, you can try to fix it with a sealant. First, clean the area around the hole with a cloth. Then, apply the sealant to the hole. Wait for the sealant to dry before turning on the AC.

How much does it cost to replace AC line in car?

The cost to replace an AC line in a car can vary depending on the make and model of the car. The average cost for a new AC line is between $100 and $200.

How much does it cost to replace AC lines?

How much does it cost to replace AC lines? The cost to replace AC lines can vary depending on the type of vehicle you have. For example, if you have a Mercedes-Benz, the cost to replace AC lines can be anywhere from $200 to $500. On the other hand, if you have a Honda, the cost to replace AC lines may only be $100.

Is liquid line red or blue?

According to most HVAC professionals, the liquid line is red and the suction line is blue. These colors help technicians quickly identify which line is which when they are working on an HVAC system.

Should the liquid line be cold?

The liquid line should be cold because it is the line that carries the refrigerant. The coldness of the line helps to keep the refrigerant cold so that it can properly cool the air in the home.