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Hello I will help you with your question,
Has this system been converted to R134a refrigerant? It started life as an R12 system that has different fittings
Can you post a picture of the one you can find?
That would be fine, once I know what you have I can advise you further. I am here most of the time so post back to this thread when you can.
Just to be clear this is the vehicle AC not an add on unit? Conversion means this is a E250 0r 150?
Great, let me see a picture when you can
Thanks, ***** *****'t need anything more. Find the can accumulator mounted next to the evaporator box on the firewall and on the top should be your other fitting. It has the large line fittings on the top. It will have a pressure switch screwed to the top of the can. Follow the large line to find the other valve. It runs from the accumulator to the compressor.
This has been converted to R134a
The port should be about 6 inches along the line from the accumulator.
Let me know if you find it