Hi everyone. First I apologize if there is a post for this problem, but I couldn't find it. I have a 2008 Legacy 3.0R, last fall the AC stopped working and I forgot about it until now, it is getting hot. My previous Impreza had needed a recharge which I did easily and figured I would do it again to my Legacy. This time, things are not so simple.
First I started the car and turned on the AC. The compressor did not start up and I put the gauge from the refrigerant can on the low pressure line. It read high pressure in the red (not really expecting anything meaningful without the compressor running). Then I found the relay and pulled it. The relay tested fine. I tested the socket and found no signal power. I jumpered the relay contacts, the AC clutch engaged and I got cold air inside. Also, the refrigerant low pressure gauge started to read green at this point.
So it seems my system is fine, there something is stopping the car from engaging it. Any ideas? Is there a way to check the pressure sensor/switch?
thanks!
Tom
