Have you replaced all the pressure switches? Low/High side? The one on the compressor? Not trying to test your patience, was the orifice tube installed correctly, only asking based on your photo of where you had a prior leak.
Check all the wires leading to all the pressure switches, a pinched wire and or bad ground could be the culprit, and you could possibly have a pin hole in the evaporator, this sucks as its buried deep behind the dash, but if the system held vacuum... and the likelihood for the HVAC controls on the dash have called it quits for there service life?
Don't know if any of this will help you out, just trying to give you some other places to look.
Check all the wires leading to all the pressure switches, a pinched wire and or bad ground could be the culprit, and you could possibly have a pin hole in the evaporator, this sucks as its buried deep behind the dash, but if the system held vacuum... and the likelihood for the HVAC controls on the dash have called it quits for there service life?
Don't know if any of this will help you out, just trying to give you some other places to look.
