The old orifice tube might smell of compressor oil (PAG oil actually). This oil travels with the refrigerant across the entire AC system. I have bought several auto TXVs to play with and some second hand parts for my car's AC (hoses, evaporator, TXV) and they all contained some leftover oil and sme...

2007 Ford Focus ZX3 2.0L 5 spd Just had a mechanic troubleshoot and diagnose my a/c system for my birthday, I haven't had a/c for a couple years, so my wife paid to have it done. I paid to have him diagnose it, he found it needed an a/c kit(compressor, accumulator & orifice tube) he ordered the ...