So I turned on my a/c today on my 04 sti and is blowing hot air,i open the hood to check and the compresor is not moving, I check the relay and they are good, check the fuses in the car and they are good. I was thinking it might be low on freon thats why the compresor is not kicking in? I need help! Let me know your toughs or if you have a.compresor

 

I have a compressor if you need it.

It can be of several things, theres a leak, theres no oil for the clutch internally for the compressor or its not pluged in correctly for the voltage to initiate the clutch.

 

It might be a waste of time, but try charging it. $20 bucks at Autozone and cheaper than having someone look at it. I haven't heard about too many of these compressors failing, but I think it's pretty common for the expansion valves to go bad. Were you getting a crunching sound from the compressor when it cycled on and off?

 

Yeah I'm thinking about doing that....no sound from the compresor just doesn't move...i heard if the car is low on freon the compresor won't turn on