Today, I noticed my A/C acting strangely. While idling with the A/C on, the compressor kicks on and draws down the idle about 250 rpms, and then immediately kicks off, then kicks on and draws down the rpms and then kicks back off, and just keeps doing that cycle. When I got home this afternoon, I checked the refrigerant level, and it's within the "good" range. It (air coming out of the vents) also seems to warm up pretty bad when I'm sitting at a red light. Is this a sign of the compressor starting to go bad? If so, is it repairable before it completeley goes out, or am I looking at buying a new one? Anyone?