How to fix a rear AC line leak in a Durango cheaply?

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May 12, 2025 at 5:03 pm #1143 Reply
Jacub
Anyone ever repair an AC line? The refrigerant line to the rear in my Durango has a hole in it, and the hose alone is $450, and I have to lift the body off the frame by at LEAST an inch to replace the entire line.
May 12, 2025 at 5:04 pm #1144 Reply
David
You could always purchase a Block Off kit for $60, easy 30 minute install to get you by until you can afford to do the rear lines.
May 12, 2025 at 5:05 pm #1145 Reply
Jon
Presuming you’re referring to an aluminum line:
Locate the pinhole… score the area with 120 grit sandpaper. Then, Clean – Clean – Clean. Apply JB Weld, extending 1/2″ beyond the damaged area. Wait a few minutes until it starts to get tacky. Draw the refrigerant system into a slight vacuum, 10-12″ – this will pull the sealer into the hole. Draw a full vacuum after 1 hour. Allow JB Weld to cure for 2 days. Evacuate & recharge.

This is an approved repair procedure by appliance companies, and I’ve used it in Automotive applications countless times. Never fails.
May 12, 2025 at 5:06 pm #1146 Reply
Toby
If you can get to the area, the easiest way is probably to use one of the repair compression fittings.

You might have to actually make two cuts close together to remove a little bit of the line, but sometimes you can get by we’re just cutting right for the pinhole is and cleaning up both ends with some sandpaper or emery cloth if they will move enough apart to install the compression fitting and tighten it up.

Of course, having enough room to get to things is often the limiting factor.
May 12, 2025 at 5:06 pm #1147 Reply
Phil
Radiator shop would solder or braze it for you if you don’t mind removing it, otherwise if it’s a straight area you can use a swagelok compression fitting after you cut the bad section out.
May 12, 2025 at 5:07 pm #1148 Reply
Lee
Use hydraulic hose and heavy-duty clamps and make it work, abandon the old lines and just make new ones from those. I have done it and it still works fine.
May 12, 2025 at 5:07 pm #1149 Reply
Cristian
I have used compression connectors on my qx56 one of condenser lines that goes into the dash had a pin hole, but was on a straight section, was able to cut about 2 inches off, found a hose from a junkyard, and cut 2 inches off, used 2 compression connectors from orielys, it is a very sensitive area, make sure it’s very tight, I wasted a lot of Freon being cheap, but I was able to get it to work — the key is to cut line with a pipe cutter, need clean cuts
May 12, 2025 at 5:07 pm #1150 Reply
Jeff
They make a repair splice, but you need the crimp tool you cut out a section then cut the same section on the new line (you still need to buy the line assembly).
May 12, 2025 at 5:08 pm #1151 Reply
Adam
Double check there isn’t a kit. I don’t remember what it was, but I did some research after we found out how it was in an SUV and the factory ones came cut. I found a kit that’s rubber for most of the distance and aluminum only on the ends.
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How to fix a rear AC line leak in a Durango cheaply?

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