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Hello,
The rear line corrosion on these trucks is generally a very easy repair. The link is a company that I have used many times and never had one come back leaking. They will make it in just about any size or length you need. And just a FYI if your Armada isn't blowing ice cubes.....then you likely have an issue as these systems work as well as any out there. Also if you have rear air you should ALWAYS run both systems if you have the A/C on.

AC Line Repair Kit 3/8" TR6
Old thread but when under the truck I noticed green liquid where the ac lines enter the cabin.

I understand the procedure here but does anyone have a video or pics? I'm imagining you take a tubing cutter before/after the leak and then you install the appropriate sized hose.

I'll probably wait until Spring to address this (just starting winter now). I am also not sure exactly where the leak is from - could be a line or the actual connection into the cabin.

I saw one poster had stated they replaced the o-rings on the cabin connection and that didn't work so had to use teflon tape as well.

Any advice would be great.
 

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When I had my fix I just bought it from the dealer like 3 days before I went back to them and had them fix it. But from my understanding, the pipe goes the full length of the SUV and the car has to be separated from the frame/base and then a new pipe lay in it. So stupid design IMHO, sorry I can't give more insight.
Thanks for the reply. That was the official "Nissan" fix but then they started using splice kits.

Others have had luck with the same and it prevents having to lift the truck off the frame. That's the route I will go.
 

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No offense taken. I'm sure you didn't nail it your first go round. My only concern is getting the old run out first. I can only get the current piece away from the body/mounting bracket an inch or so. Will need to get it up on a lift so I can get a good look. Appreciate the advice. Doesn't sound to be too hard but more of a pain than anything. Would love to learn how to do it, maybe I'll pick up a piece of 5/16 inch aluminum and practice on it before trying it on the truck.
Any update on how it turned out?
 
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