Re: AC system

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Posted by Peter ( on 10:21:37 03/25/14

In Reply to: AC system posted by Steve G

I had a similar problem in my 2000 K1500. My mechanic was doom and gloom about needing to replace the entire set of lines to the rear which could require lifting the body... Using dye, he did not see any leaks in the rear evaporator (?) which left the lines as the issue. He dug into it and found the problem was a leak in the line under the insulation. The line had rotted from the inside and at a bend. It was a low spot that allowed moisture(?) to collect and that corroded the line. My mechanic has a local source for the specialty lines required for AC but this was the larger of the two lines and they did not have the tooling for it. I found this company which offered to custom make the proper length line with the correct connectors. The repair was hundreds cheaper than replacing the entire line.

My recommendation is to cut back the insulation on the rear line and look for dye leakage that way.

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