Originally Posted by Matt L (Post 1899958)

My AC is 38F at idle, recirculate off, fan on 4/7 (just over half). That's blowing pretty hard for such cold air, and that's 134a. My system is designed for that stuff and apparently it works pretty well. That's not all it's own fault. I was suffering from a restricted dryer for about a year before I tore into it.

Crappy, I bought a HECAT pulsating flush gun from www.ackits.com, and I can't recommend it enough for cleaning out your system. It's a lot better than the standard flush guns, as it sends bursts of fluid and compressed air through the part. The flush solvent is expensive, but there's no fix for that. It's important to eschew chemicals that will attack your oil, refrigerant or rubber lines.

I wanted the system flushed after 12 years of use and 200K miles, and didn't want to ask a shop to do it. For what they would have to charge for the job, I bought all of the tools and had enough money left over to have my existing refrigerant legally reclaimed, plus a bunch.