[FRSBRZGT86FAN]

Originally Posted by norcalpb

This is helpful. I measured it with the cheap gauge at 70F and greater than 40% humidity so 25-38 psi on the low side is the result I’m getting.

I was always told AC doesn’t go bad if the system remains sealed, but since you know your AC, is this true?

Dude, just take it to a shop, I can tell @RZNT4R has shop experience diagnosing car HVAC systems like this and such but you definitely do not.



The gauges you are using are not calibrated for proper pressure measurements, also you can even have leaks out of the schrader cores from mangling them if they are remotely similar to residential or commercial ones. If you wouldn't trust your house hvac to yourself don't do that with your car.



This isn't a Camry and not a one size fits all diagnosis. If you care about the vehicle you really just need take it to a subaru dealer and tell condenser up in a year. Tell them it takes 30 minutes for the ac to blow cold and they will pull it down and diagnose it. That's still cheaper then you shoving the equivalent of a stop leak product into the low or high pressure side and gumming the compressor and condenser up.