SO I am looking to fix my CSX-T's AC it was R-12 . looking up how to do this most just vaccum out and recharge , not the way I want to do it.

best method replace all this , in my case the compressor is dead.
so. 0) compressor

1) AC flush kit2) Complete HNBR O-ring kit for your vehicle
3) R134a retrofit kit with R-134a port adapters, oi, port caps and retrofit label
4) R134a pressure switches
5) R134a orifice tube
6) New barrier style hoses for pre-1990’s vehicle
7) New R134a accumulator/dryer

I want to know if 4 , 5 and 7 are for real (r134 type) or is it just a clean new one you need, or is there special R134 types for shadows etc.

also should you change out the expansion valve too.?

anybody know

I have done this the BAD way not replacing all this stuff and just dumped r134 in , works but no so good

IF I DO THIS THE RIGHT WAY AND IT WORKS GOOD OTHERS CAN LEARN TOO.

thanks for any input.

LINK http://ricksfreeautorepairadvice.com...stem-to-r134a/
Dave L