Thanks. Cabin filter was nasty but replaced.

AC is blowing cold now. Evaporator core probably does not require cleaning at this time.

Awesome! Good to know! Thank you

I haven't seen anything like that.

They said they didn't add any oil back into the system though. I hope they didn't do things improperly.

Thanks. I just got the car back from the shop yesterday. They pulled all the r134 out and said the system held a vacuum. They could not find any leaks. However, the system only had .35lb of r134 in it and they said the spec is 1.16 lb. They filled it back up with dye and said it passed a test charge...

Disclaimer: I'm not an AC professional. But my advice is free, and worth every penny. 52F is pretty low temperature to try any AC diagnosis. But 28psi is pretty low. I'd get a real service gauge kit if you want to continue diagnosing by yourself. And I'd run away from what you purchased if that can...

Howdy all, I just bought a used car (2007 Elantra) and can't figure out the AC problem. When the AC is activated the AC compressor turns on -- as well as the condenser fan. Unfortunately, no cold air comes out of the vents though. I planned on putting some dye and little refrigerant in the system to...