I was just sitting at a red light and heard this weird rhythmic clicking from the dashboard. It went away when I started driving, but now it is back again this morning. I have been putting off dealing with it because the air still feels somewhat cool, but I have a feeling I am just masking a bigger issue. My buddy told me that ignoring those sounds is how you turn a small fix into a major expense. I know I probably need to schedule a professional auto cooling service to actually look at the compressor before I am stuck sitting in a hot car with no AC at all. It is one of those things where I know I should be proactive, but I keep hoping it will just fix itself.