For fours years my AC has worked great all winter, in the summer it dies on me. Every year. Have replaced all evaporators, all lines checked, replaced the dryer with compressor 5 times (4 gotten through warranty), and heater core. I’ve been riding for 4 summers with no A/C. Two mechanics couldn’t fix it either.
another mechanic suggestion switching from the stand up compressor on the 14.0 60s to the sideways compressor like the 12.7 with a new bracket and lines. Has anyone had this issue or tried this solution?
A/C no bueno
Discussion in 'Ask An Owner Operator' started by supergreatguy, May 31, 2022.
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Dont know your truck but if an older kw, replace the heater core box with a new heater core and evap coil, and set up a proper freeze switch you KNOW works (my next step in this truck comfort wise)
Did a whole brand new set of lines, but im about ready for making a full second set thats routed better this year and deleting the rear evaporator from the loop.
The advantages of the sanden style is that in an overpressurization situation (usually the cab box freezing up), the swashplate has a built in releif valve that lets the refrigerant through imstead of the old yorks which will simply try to compress liquid.
If you have the time and money to do it right, 6 k and build it yourself (includes tools to make your own lines and a lot of spare parts), 100% new components end to end, components you know you can source, have part #s for when they do fail, and carry the spares that make sense. -
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I don’t have any either. It sucks. Went to get it charged last week as it worked last summer when I bought the truck. No power to the compressor. He didn’t have time to mess with it as I was a work in. So that’s on the list.
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What kind of Truck? Got a pic of the lines? The ends that go to compressor, and the electrical connection on your york? There’s a few ways to convert it. There’s a kit that uses your bracket, converting to an ear mount Sanden. The ear mount required is twice the price of a common pad mount. Better to get new bracket, and a common Sanden compressor. Same compressor that’s on every Cascadia, easily found on the shelf in a jam. Best to get a SHD7. Theres a bunch of different ones. One of them should replace yours. Same clutch, same electrical plug, same type line connections is ideal. You may need to replace lines, or adapt electrical connections, or both. They make bolt/plug in adapter conversions for both. Better to chang what’s needed, make new lines if needed. I had a nut welded to new fittings on mine. Now I can make my own lines when needed. Much cheaper that way. The cost of factory lines is outrageous. Shoot some pics of compressor, bracket, any belt tension idlers, line connections and clutch wire connector.
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