VNL 780 can I repair a hole in A/C low pressure line?

You can splice it and itll work. Most Freon contains pad oil. But like what was said earlier you can run into problems and the system probably Won't operate at it's optimum ability. It only costs a few hundred bucks to have some one evacuate it and recharge it. I'd also change the accumulator.

 

So are you HVAC guys saying there's a problem splicing the rubber section of the hose or that he should have it properly recharged, which is a given. I bet that aluminum/rubber hose from volvo is $500+! I've never had a problem with a professional splice

 

I would do the splice yourself buy have it professionally recharged. I wouldn't just splice it with a couple of house clamps and a ppipe though I'd take it to Parker or something and have it spliced right. me personally I'd change the hose as I try to take a proactive approach to repairs that will prevent down time as a breakdown will be more costly. Even though it's only the a.c. system a locked compressor will typically burn off a belt and it'll cost you a tow and a repair. At the minimum I would have it professionally recharged.

 

You need to have it at least vacuumed and recharged by someone that knows what they are doing, because unless you have a vacuum pump and gauges your going to have air ( which displaces the freon ) in the system after you have it repaired or replaced, which in turn will cause high head pressures and create acid when you recharge it, causing poor performance and eventually killing the compressor..

 

Did you price the new hose assembly from Volvo?

 

At any store that sells plumbing supplies, along with at least 2 clamps, usually if possible I will put two clamps on both sides.

Buy a kit at Walmart or some other place to put Freon in. It will have a pressure gauge that shows when its got plenty of Freon.

I've did this many times and never had trouble.

Once years ago on my Chevy S-10 Blazer my compressor went out, I hired a mechanic friend to replace it. In less than 6 months the compressor went out.

That time it was a rebuilt compressor, when that happened I bought a brand new A/C compressor, put it on myself, use the Freon kit I spoke of above. About 5 years later I sold it and the A/C was still putting out very cold air.

If its been a while since the line burst, you might need to put a little bit of oil in the system.

In my life I've done such things many times, and I have never had a problem and have saved many dollars along with much waiting time.