So yesterday I noticed my AC was rather lacking. Thinking it needed charging, I got a bottle of some R134A and a gauge. I filled it as directed, until it was in correct zone for the temp. It worked great last evening. I put maybe 2/3's of a can in. 15oz can.

I go to lunch today and it wasn't super cold, but I wasn't sweating so whatever. It was like 95F out anyways. On the way home, I get nothing. Straight hot air until about 3 miles down the road and I would get cold, warm, cold, warm etc...

2010 GT, AC compressor quick cycle and not cold.