zev

I need help diagnosing my ac
My ac worked this winter and last week it stopped working. Now all I get is warm air. At first it was only working when I accelerated. I decided to fill the cooler, it has been retrofitted to R-134 and the pressure on the high and low side are correct. After the fill the ac was blowing cold air when I was at idle and got warm when I accelerated.
Inside the cabin:
I took out the dash and made sure the temperature **** was working correctly. Every thing appears to be working. The actuator that controls inside or outside air works. The actuator that controls whether the air goes to floor, face, or defrost work. There are relays and circuit boards that control the ac radiator fan. The relay is fine tested with a volt meter with power attached. The circuit board looks good based on a visual inspection. There is a thermostat in the same ares for the evaporator I have not tested; I did jumper the connection and got no cold air.
Under the hood:
The compressor seems to be working based on a visual inspection, the compressor clutch spins. I have not checked the voltage on the compressor; I can’t find the terminals. I can hear the compressor clutch kick on once and awhile when its running. When I turn on the ac in the cabin the compressor instantly turns on. I have determined one of the ac fan and compressor relays are broken. Based on noise and voltage meter. The relay is on order. I tried to jumper the ac pressure switch which didn’t work. I couldn’t find where exactly the ac pressure switch is located but determined it based on schematics. That’s assuming I read it correctly.

Any advise I could get would be greatly appreciated. I have taken it to two different people to fix it. At this point I don't trust mechanics anymore and want to make sure the entire problem is fixed.

Thank you

tamboo

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have fun! 8)