Here's a good one. My A/c hasn't been blowing all that cold since i first put 3165 back on the road 2 years ago. I had the system evacuated and refilled with R-12 along with a new low pressure switch. From then on it worked but not that great. Thinking it may not have been charged all the way I had Rob Grady check the pressures the other day and they were spot on. He said i May have to evacuate and clean out the system because there may be dirt or something in there. I was wondering if anyone else had any other suggestions? Years ago the A/C would blow so cold in there you could hang meat! Now it's just barely enough to take the edge off....with a full charge!!! Any suggestions would be appreciated.