Hose runs from the suction accumulator/drier to the compressor. Has the cycling switch attached to it. High side mainly runs along the right fender. You will need to buy the special tools to open the fittings - after you discharge the system. When it is all over you will need a vacuum pump to draw the air and moisture out of the system. I would try the stuff they sell at Wally Mart that cleans/seals/conditions/lubes the system. Kept mine running for many years. My A/C gets run almost year around. For those of you that live in the GWN, during the off season run the A/C for a minute or two about once every week or two. This keeps the seals wet so they will not dry out.
